If the north poles of two bar magnets are brought db 2qp fsscd.i.,+,shhe(p(ez,2mhhclose to each other, the magnetpbmc ,sqz hp 2ie(sh.h2,efsdd h,(+ .s will

  If the south pole of one bar magnet is brought near the north pole of al2jd9;ml/ 2+st rup cc5u q6jf second bar magnet, the two magnetsfp/ rulsj2cj ;6u 5+9t 2qcdml will

  If a bar magnet is divided into two equal piex :ohc/ yd5a*lces,

  The Earth's geographic North Pole is mr;3(4pcx() b k g1qtz3 bstlnjagnetically a

  The south pole of a magnet pointp/e 4cq;8).5 vj-rabdb1xxrrt ytw/ hs toward the Earth's

  An electric current produce k)tcmy+e))i js

  Which of the following is 5eiwer 1,bss7 correct?

  A vertical wire carries a curre.8zfv +cu e: hf-* bqi*oivo9gnt straight down. To the east of this wire, the maoi 8+*f .9-oquifgz*bv: eh cvgnetic field points

  A horizontal wire carries a current straight tow3fl w.bq)et 4wq7mqv-ard you. From your point of view, the magne q4v3-t bmlww)qfq7e.tic field caused by this current

  A current carrying loop )wy o j+ddv4/zof wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense. What is the direction of the magnetic fi d)od+vz4/wyjeld caused by this current, outside the loop? The magnetic field

  A current carrying circul qvyu,r+b zymfh42,i 1gajn(+ar loop of wire lies flat on a table top. When viewed from above, the current moves around the loop in a counterclockwise sense. What is the direction o4an, ( bigy+h,vrf2qy+m1 zujf the magnetic field caused by this current, inside the loop? The magnetic field

  The SI unit of magnec l,0;t-)unikl wqh:;r9me ujtic field is the

  1 T is equivalent to x +3 /6zpp0z2hpvibju

  The direction of the force on a current-carrying wire in a magnetic field isxdeo)n o s72gyrq 8(c* described by which of the followinxy(o 8 sdcgqr)oe2n*7 g?

  The force on a current-carrying wire in a magnet5: s:z2py *hkdrc1obk ic field is the strongest when

  The force on a current-carryin af5ns+6 vus754le jeyg wire in a magnetic field is equal to zero when

  A vertical wire carries a current straight up in a r jdbbv /tsq t yf,qvs43,61.pyegion where the magnetic field vector points due north. What is the direction of the resulting fb y,jss3 ./v fb yptq4q1d,tv6orce on this current?

  A charged particle moves and experiences no magnetic force.)77m3d5z ytf: bc-b om-znk vp From this we can conclude7nzmfy3m:bbk- pz 7 od-vc)t5 that

  A charged particle moves with a constant speed throug+g n1dyzm14 qwh a region where a uniform magnetic field iy+zdmq1n14 wgs present. If the magnetic field points straight upward, the magnetic force acting on this particle will be maximum when the particle moves

  A charged particle moves across a constant magnetic field. The magneti+g9tkl8id bek o4p0 3uc force on this p3k9elp4to+ub 0 8igkd article

  A charged particle is injected into a uniform magnetic field such n: y;.pyan31 m72hevezsp q1e that its velocity vector is perpendicular to the magnetic fiely 2mq 3e7 eevz;psa.y1h1pnn :d vector. Ignoring the particle's weight, the particle will

  A charged particle is observed traveling in a circular pathj9xdwt ddvbn 09g92o1 zzypk/1-kj9d in a uniform magneti nbzz d99djg91 o0-vd1kp wkyt/2d9j xc field. If the particle had been traveling twice as fast, the radius of the circular path would be

  A particle carrying a charge of +e +-i dumvri d e6bqi/bup0+0 *otravels in a circular path in a uniform magnetic field. If instea0iop+0 qmu/iud+ri* 6bd b-ved the particle carried a charge of +2e, the radius of the circular path would have been

  At a particular instant, an electron 4exfr-sco m*xbru wt 14/hl01moves eastward at speed V in a uniform magnetic field that is directed straight downward. The magnetic force*c/m e4srw t01-fb1l4 xruohx that acts on it is

  An electron has an initial velocity to the south but is observed to curve up*gbzs0:sw1sb5 2 :wr yvkvkw-ward as the res :z1 w y vkr:*w0sswkb5sbv2-gult of a magnetic field. The direction of the magnetic field is

  An electron moving along the +x axis enters a region wc: t(,epybbig3-0 fcphere there is a uniform magnetic field in the +y direction. What is the direction of the magnet :0c -3bg etippycf,b(ic force on the electron? (+x to right, +y up, and +z out of the page.)

  The magnetic field produced by a long straight cu gh5u *vgh3i:orrent-carrying wire is

  At double the distance from a long current-carrying wire, the strength of hr2mz:f cf0 585y wh1 sjuzd4xthe magnetic field produced by that wire decreases r5zsmf2y0x4f1cdhhz5u : 8 wj to

  Two long parallel wires placed side-by-:4cnj ithk.y5v; /zq00voa uss7f ye-side on a horizontal table carry identical size currents in opposite directions. The wire on your right carries current toward you, and the wire on your left carries current away from you. From your point of view, the magnetic field at the point exactly midway between the two wir y0i5ech;:f/qs 0o v7nyt. v jukz4a-ses

  Two long parallel wires placed side-by:q7itot9x 4m:( dk ln-w2fra j-side on a horizontal table carry identical curren4nj: -i :x9ftkro27a tdlw(mqt straight toward you. From your point of view, the magnetic field at the point exactly between the two wires

  Two long parallel wires carry equal curm :g2c c)zr (p uh+ iell7rnlu79c*j4srents. The magnitude of the force between the wires is F. The current in each wire is now doubled 7 hru*mjp( lgru+:n)c2ecl7 ic49lz s. What is the magnitude of the new force between the two wires?

  A long straight wire carries gi+a2; hb cxe+x3hx1r current toward the east. A proton moves toward the east alongside and just south of the wire. What is the directi xh3e1ac;xh 2xbg+r +ion of the force on the proton?

  A wire lying in the plane of the page carries a current toward the k31ud( ct tn*okarl /0bottom of the page. What is tr *n1 o lt3/kkca(du0the direction of the magnetic force it produces on an electron that is moving perpendicularly toward the wire, also in the plane of the page, from your right?

  Two long parallel wires are placed side-by-side on a horizontal table. If thz()t alb gs6xh+j8 v7 ki4;az l3ulu+ae wires carry current in the sam7ualz3+ jl guas6v ibhztlx+;(8 a) 4ke direction,

  Two long parallel wires are placed side-by-side on a horizontal table. If thpqoq. po,e7. ne wires carry current in opposqpe ..7on q,poite directions,

  Consider two current-carrying circular loops. Both are made fsi5y+ v1pn62gr j* sfprom one strand of wire and both carry the same current, but one has twice the radius of the other. Compared to the magnetic field at the center of the smaller loop, the magnetic field at the center of the larger pgrp25 f*vins 1+j6 syloop is

  Consider two current-carryin3xiz z-nhyx)r7x8 wi4.oh h- gg circular loops. Both are made from one strand of wire and both carry the same current, but one has twice the radius of the other. Compared to the magnetic moih3wg - )ozx.xi- yzhxhn 8r74ment of the smaller loop, the magnetic moment of the larger loop is

  The maximum torque on a current carrying looh8sk69h 4)*fwxuip-p j:i wh;gbef5pp occurs when the angle between the loop's magnetic moment and the magnetic field vector u4fi9:p*ghhpxw85wk ; ) p 6-ehs fbjiis

  When placed askew in a mg)uyyyz6u+ pw ,l,iy+agnetic field, a current carrying loop that is free to rotate in any direction will experience ayuz,ugyyw ,y p l6+)i+ torque until its magnetic moment vector

  What fundamental fact undcbf1d*pcf e s8w2n 26serlies the operation of essentially all electric motorsps16d8s22cfb* nc wef?

  A circular wire loop lies in a horizontal plane on a table ansooq i2(f 5n,hrnfx516 l7bdpd carries current in a counterclockwise direction when viewed from above. At this point, the Earth's magnetic field points to the north and dips be(lni6d7sx1oqfbf55, o 2h pnrlow the horizontal. Which side of the coil tends to lift off of the table because of the torque caused by the currents interaction with the magnetic field?

  In a mass spectrometer a parti :4u2d v1b;e+qgc9lw +olplencle of mass m and charge q is accelerated through a potential difference V and allowed to enter a magnetic field B, where it is deflected in a semi-circularvq lnpe+w9l1:e4og lcd+u ;2 b path of radius R. The magnetic field is uniform and oriented perpendicular to the velocity of the particle. Derive an expression for the mass of the particle in terms of B, q, V, and R.

  A velocity selector consists oxpqn j(hj )p 98;scf9qf a charged particle passing through crossed electric and magnetic fields. The forces exerted by these fields are in opposite directions, and only particles of a certain velocity will move in a straight line. In the following, disregard the magnitudes of the fields. In a velocity selector, the particles move toward the east, and the magnetic field is dipp(q fnjj89qc;)s 9hxrected to the north. What direction should the electric field point?

  A 2.0-m wire carrying a current of 0.6coq ac r4/kqx 9k-f dkov. 3tu3j-r9i-0 A is oriented parallel to a uniform magnetic fielxq-o/o kkuakqd -rj4c-9rt v9cf.33id of
0.50 T. What is the magnitude of the force it experiences?

  A wire carries a current ofirp u7qul;d.h+i h.(x 10 A in a direction of $30^{\circ}$ with respect to the direction of a 0.30-T magnetic field. Find the magnitude of the magnetic force on a 0.50-m length of the wire.

  What is the force per meter on a straigx ht5h* 1a jjec1p2iir++/ knrht wire carrying 5.0 A when it is placed in a magnetic field of 0.020 T? The wire m tk+h1j piji hx cr+/a5r21*neakes an angle of $27^{\circ}$ with respect to the magnetic field lines.

  A thin copper rod 1.0 m long has a mass of 0.050 kg and is in a js:pf6qlrd 3 + zj57kvmagnetic field of 0.10 T. Wj7d6q5l+ps: f3z rvjkhat minimum current in the rod is needed in order for the magnetic force to cancel the weight of the rod?

  A stationary proton is in a uniform magnetic field of 0.20 T. What isl aew a-36 p8j9-fpxzf the magnitude of p639w -pljz ax-8fefathe magnetic force on the proton?

  A proton moving at $4.0 \times 10^4 \; m/s$ horizontally enters a region where a magnetic field of 0.13 T is present, directed vertically downward. What force acts on the proton?

  An electron moves with a speed of jba+ikroz8f z l9+t0x 9jc+j,m6gt*a$5.0 \times 10^4 \; m/s$ perpendicular to a uniform magnetic field of 0.20 T. What is the magnitude of the magnetic force on the electron?

  A proton travels at a sp egqss( x3rc u/fks3cu r g:/:timc :*1fb8:lpeed of $5.0 \times 10^7 \; m/s$ through a 1.0-T magnetic field. What is the magnitude of the magnetic force which acts on the proton if the angle between the proton's velocity and the magnetic field vector is $30^{\circ}$?

  An electron traveling due north with 8j4q) pektu 4usg*7cdspeed $4.0 \times 10^5 \; m/s$ enters a region where the Earth's magnetic field has the magnitude $5.0 \times 10^{-5} \; T$ and is directed downward at $45^{\circ}$ below horizontal. What force acts on the electron?

  An electron moves with ltx5fhrj9.9 aa speed of $8.0 \times 10^6 \; m/s$ along the +x axis. It enters a region where there is a magnetic field of 2.5 T, directed at an angle of $60^{\circ}$ to the +x axis and lying in the $xy$ plane. Calculate the magnetic force of the electron.

  An electron moves with a speed ov e6ulg wz o-i9-0bq/pf $8.0 \times 10^6 \; m/s$ along the +x axis. It enters a region where there is a magnetic field of 2.5 T, directed at an angle of $60^{\circ}$ to the +x axis and lying in the $xy$ plane. Calculate the acceleration of the electron.

  A proton has a speed o( s7.djhyce) of $3.0 \times 10^6 \; m/s$ in a direction perpendicular to a uniform magnetic field, and the proton moves in a circle of radius 0.20 m. What is the magnitude of the magnetic field?

  A very long straight wire carries a current of 25 A. What is the magnitude of tm9fp*i)-qvu;ks ;7r e ,e8 pp6 yundsbhe magnetic field at a distance of 0.15 m from the 9sunmd*rvf p7y ek;pu) 8-i6p; bq,sewire?

  A high power line carrying 1 roo:;uzx 9b/c000 A generates what magnetic field at the ground, 10 mo/or:9x cu;z b away?

  How much current musta4s6mk) 3;fedf ht o4d flow for $1.0 \times 10^{-3} \; T$ of magnetic field to be present 1.0 cm from a wire?

  At what distance from a long straight wire carrying a curre e05ee(,bmrf gp )ovwxj;lbig y,ir14 t/u *1ont of 5.0 A is the magnitude of the magnetic fe)eb jmgx;bwr t1yp4e o(*g,vi5 1,io/lur 0field due to the wire equal to the strength of the Earth's magnetic field of about $5.0 \times 10^{-5} \; T$?

  Two long parallel wires carry2nk0)3d:(u pg p:a5r rsxwzvh currents of 10 A in opposite directions. They are separated by 40 cm. What is the magnetic field in the plane of the wires at a poingrud52a z :p0(3 kxhs)rpv: wnt that is 20 cm from one wire and 60 cm from the other?

  Two long parallel wires carry currents of 20 A and 5.0 A in opposite dirdfpti/z4 7uz a0me9g0ob/. ng , drc+xections. The wires are szu x pd07i mr+/.ndzabcg0to/4,e9g feparated by 0.20 m. What is the magnetic field midway between the two wires?

  Two long parallel wires carry currents of 20 A and 5.0 A in opposite dix-.e. xz rfez;(a,qcdrections. The wires are separated by 0.20 m. At what point between the two wires are the contributions fromx- d.re;,xcazfq ze( . the two wires the same?

  Four long parallel wires each carry 2.0 A in the same directikp 4a7m*0bhlm+npsy f61wmh ;on. They are parallel to the z-axis, and they pass through the corners of a square of side 4.0 cm positioned in the x-y plane. What magnetic field does one of the wires experience due to the othefmmwpsp64a7*h+1 bm lhnyk; 0r wires?

  Two long parallel wires carry currents of 5.0 A and 8.0 A in the osdpu*t* s+tv*(0 nbrzpposite direction. The wires are separ+p *bzs(sr nd *ut*v0tated by 0.30 m. Find the magnetic force per unit length between the two wires.

  What is the magnetic field at the cente hqo9c87hg n4xr of a circular loop of wire of radius 4.0 cm when a current 47hxnhg9 qoc8 of 2.0 A flows in the wire?

  A solenoid 20 cm long is wound with 5000 turns of wire. What mag d e 49aher*v89 8x/lltvvdy-nnetic field is produced at the center of the solenoid vnd88evvdey9 hl4/ ltx9*a-rwhen a current of 10 A flows?

  A solenoid with 500 turns is 0.10 m long and carr/e3d8fo gv cpy7iag2m 8 g,eh/ies a current of 4.0 A. What strenemfcy8g/8vphg g ai2 /7oe,3dgth of magnetic field will it have at its center?

  How much current must pass through a 400 turn coil 4.0 cm long to gen:n5fi22fb+hwz ;oq(8 b fek59ynm oeo erate a 1.0-T magnetq ef:o5o+b owbk5y (8 nei2ff2mn 9;hzic field at the center?

  How many turns shoulzor/pel)o7 ;awgyt vt 6.rc /2il5t9 id a 10-cm long solenoid have if it is to generate a $1.5 \times 10^{-3} \; T$ magnetic field on 1.0 A of current?

  What is the magnetic moment of a re6-o 9ws u sqypm,i:iw*s at;f24c-sw wctangular loop of 120 turns that carries 6.0 A if its dimensions are 4qft,-2i :4w*scai6wu;m-ws ypsso w9.0 cm x 8.0 cm?

  A circular loop of wire of radiudf: ajodw.64b bps2e )s 0.50 m is in a uniform magnetic field of 0.30 T. The current in the loop is 2.0 A. What is the magnetic torque when the plane of the loop is perpendicus64eb wb) p.oa2ddjf:lar to the magnetic field?

  A circular loop of wire of cross-sectional areaq d1l2f-e qsp, miw:3i $0.12 \; m^{2}$ consists of 200 turns, each carrying 0.50 A current. It is placed in a magnetic field of 0.050 T oriented at $30^{\circ}$ to the plane of the loop. What torque acts on the loop?

  A circular loop carrying a current of 2.x: veoap) 5ji6lm1f+s0 A is in a magnetic field of 3.5 T. The loop has avle6 o)a+ fpim1j:5xsn area of $0.12 \; m^{2}$ and its plane is oriented at a $37^{\circ}$ angle to the field. What is the magnitude of the magnetic torque on the loop?

  A circular loop of wire of radius 0.50 m is in 9yjd vszp3u l1;ne 5c:a uniform magnetic field of 0.30 T. The current in elnp y;519scvdz: 3ju the loop is 2.0 A. What is the magnetic torque when the plane of the loop is parallel to the magnetic field?

  A circular loop of wire of radius 0.50 m is in a uniform magnetic figs/+g gx4 0vnteld of 0.30 T. The current in the loop is 2.0 A. What is the magnetic torque when the plane o0+4 gnvgg/s txf the loop is parallel to the magnetic field?

  A circular wire loopt8t(1 u/vyhjkdsk* (c of area $0.25 \; m^{2}$ carries a current of 5.0 A. The coil lies in a horizontal plane with the current flowing in the counterclockwise direction when viewed from above. At this point, the Earth's magnetic field is $1.2 \times 10^{-4} \; T$ directed $60^{\circ}$ below the horizontal. What is the magnitude of the torque which acts on the loop?

  In a mass spectrometer, a single-charged particle (charge e) has a speed:pbcslel2 k (8 of $1.0 \times 10^6 \; m/s$ and enters a uniform magnetic field of 0.20 T. The radius of the circular orbit is 0.020 m. What is the mass of the particle?

  A doubly charged ion with tvfn1n su)s2/ k6u gn+velocity $6.9 \times 10^6 \; m/s$ moves in a path of radius 30 cm in a magnetic field of 0.80 T in a mass spectrometer. What is the mass of this ion?

  A proton travels through a potential of 1.0 kV and thenpiw; a3bu 2fvku:/x i( moves into a magnetic field of 0.040 T. What is the radius o:iuw3xkf uap;/ibv ( 2f the proton's resulting orbit?

  A proton is accelerated from rest through 500 V. Ia5 spw;;0c/b.kui unk t enters a magnetic field of 0.30 T oriented perpendicular to its direction of motion. ai5 knwu 0.s;b /;kupc Determine the radius of the path it follows.

  A beam of electrons is accelerated through a pojj3lzuy - 4*kntential difference of 10 kV before entering a velocity selector. If the B-field of the velocity selector has a value of 0.010 T, what value of the E-field is required if the particles are to be 3kzjn4l- u*j yundeflected?