A device that produces electricity by transforming ju5dvo6+ag(jchemical energy into electrical energy is called ajvuo6(+ ga5d j

  A car battery

  The total amount of cha irwqi861-f72dd rzybrge that passes through a wire's full cross section at any point per un2b8w6 d qizd-yrf1i7 rit of time is referred to as

  The direction of convention cukavii0eabt )y1jk;3f qt)5l) rrent is taken to be the direction that

  A coulomb per second is the sa9qdxz xq2)3u+bn7vs bme as

  Car batteries are rated in "amp-hour fir0z9(zau 8w3 )rjdbq(v ei(*q:vmo s." This is a measure of their

  The resistance of a wire is defi/l2 y5o/mqbko ned as

  What is $1 \; \Omega$ equivalent to?

  The resistance of a wire i)3)(tof4qyxv1u) cfktr d 0ids

  The resistivity of a wire dependsp egm/)aj .b/od7; thu+fij,e on

  Which conducting material has the lowest resistid;hg6d,y, vgkqe z/:qvity value?

  Consider two copper wires. One has twice the length of the other. How do the i j*vqo1-65 hheqww-nresistqo-qh nhi* v1-w6je5 wivities of these two wires compare?

  Consider two copper wires. One has twice the length of tha5ae1bvk/s fwd5, ch2e other. How do the resia f wa5bcd,ves k/521hstances of these two wires compare?

  Consider two copper wires. One has twice the cross-sectional area of the oth r4lgbzlh,92j er. How do the rl9 ,gblj r4z2hesistances of these two wires compare?

  Consider two copper wires. One has twice them:nc3z*too;zr . +q ii length and twice the cross-sectional area of the othe+it.;i:r c*no3 ozmz qr. How do the resistances of these two wires compare?

  The length of a wire is doubled and the radius is doubled. By what factor d. ,jmvvu-uianw-;gv 9 oes the rgav mv-jwu.n;i ,u9 v-esistance change?

  How much more resistance does a 1.0 cm diameter rod ham .+:c3jyx)ghtky 3 qnve compared to a 2.0 cm diameter rox:y h ygq3j)3n.ctk m+d of the same length and made of the same material?

  The resistivity of most common metal;v z cooqrl::bqe 2xve9i86x3x ;um,ds

  Negative temperature coefficien48oyet b j3681fs lothts of resistivity

  What is 1 W equivalenth4:ao.6ru mk ru.t gu2 to?

  A kilowatt-hour is eqidg:(b/tu ihj+9k dl-uivalent to

  If the resistance in a constant voltage circuit is doubled, gi6rnmbuiq) /0+ au)x the power dissipated by that circuum xu0q +)big 6air/)nit will

  If the voltage across a circuit of constant resistance is doubled xa86,wqzl5gvtc*x 4t, the power dis8wtq6vgtzx,l45 c a* xsipated by that circuit will

  If the resistance in a circuit with constant current flowing is doubled3jrk fwm .y(x 1qe0n+o, the power dissipated by that circuitofn3j+e0 mx(y1 wqr k. will

  If the current flowing through a circuit kgr ecqu*49- b2 xiy:3by ue:88jfxqp of constant resistance is doubled, the power dissipaque gu jrb8x8 ec-342 ix*:fpkyy:bq9ted by that circuit will

  During a power demand*ym utoj,7y/y, the voltage output is reduced by 5.0%. By what percentage is *yyyo,tm/ 7u jthe power on a resistor affected?

  A current that is sinusoidal with respect to timekt6as1 du 1tyycl74h+vq.e 0d is referred to as

  Consider two copper wires each carrying a current of 3.0 A. 5 invwy ,)4kwm;3ijau One wire has twice the diameter of the other. The ratio of the drift velocity in the smaller diameter wire towj,iyiuamkn v;4) 3 w5 that in the larger diameter wire is

  Materials in which the resistivity becomes essentially zero at very low temperat)ngagcgvur2.*1qxm;78lt 1ww oozl (urnc7tgla1)1rgzwx(2u8om.l q v wg o; *es are referred to as

  What current is flowing if 0.6l. mxzdn83pn37 C of charge pass a point in 0.30 s?

  A charge of 12 C passes through an electroplating apparatus in 2.0 min. Whaty7r c,;nx p3em is the average cu;73 xpey crm,nrrent?

  How much charge must pass by a point in 10 s for the current to be 0u y8;5w +*tqs e6) qs.8de ygzpk,lmie.50 A?

  A total of $2.0 \times 10^{13} \; protons$ pass a given point in 15 s. What is the current?

  What current is flowing if kxvyu-x-+0fa cw7b b9 $4.0 \times 10^{16} \; electrons$ pass a point in 0.50 s?

  If $3.0 \times 10^{15} \; electrons$ flow through a section of a wire of diameter 2.0 mm in 4.0 s, what is the current in the wire?

  A coffee maker, which draws 13.5 A of current, has been left on for 10 min. b , l)p-h1 .)mg:0ozerndab zmWhat is the net number of electrons that , z-zgmra0od1emn h) )bp.bl :have passed through the coffee maker?

  In an electroplating process, it is desired to deposit 4eg1 0j9rgw td20 mg of silver on a metal part by using a current of 2.0 A. How longg tdg21r e9wj0 must the current be allowed to run to deposit this much silver? (The silver ions are singly charged, and the atomic weight of silver is 108.)

  What potential difference is required to cause 4.00 A to flow through a resi pj)sv q6-rpue46l,castance of 330 W6s jur) la,p 4q-c6pve?

  What is the voltage across a 5.0-W resisfud+)g*s/cs5afzci e14x 8 zztor if the current through it is 5.0 A?

  A 4000-W resistor is connected across 220 V. What cu j+:2ttiv gk+ry/v l)mrrent will flow?

  A light bulb operating at 110 V draws 1.40 A of current. What is its resistanc p 86b1y/irpit,*pfzbe?bpi p1yb 8i*zf/r tp,6

  A 12-V battery is connected *j sul*h am+/vto a 100-W resistor. How many electrons flow through the wiu*v+/j* l msahre in
1.0 min?

  What is the resistance of 1.0 m l1 2kp5 o 9jkybh.ib*tcopper wire of diameter 0.40 inch? (The resistivity of co 9k.p ho2i5b1jbly* ktpper is $1.68 \times 10^{-8} \; \Omega \cdot m$.)

  What is the resistance of a circular rod 1.0 cm in diameter and 45 m ls.jl)y modftet3. z(k 9ldc*-z43 cb,mi f;kk ong, if the re* kcd(.lktc3y3fbmtfjs4 zi)emz-ol9, d ;.k sistivity is $1.4 \times 10^{-8} \; \Omega \cdot m$?

  What length of copper wireh/wrc0(17fg6 w hdh4rwae2x x .;q;ws0xebdr (resistivity $1.68 \times 10^{-8} \; \Omega \cdot m$) of diameter 0.15 mm is needed for a total resistance of $15 \; \Omega$?

  A 120-m long copper wiq39w1p:lro j o4 l6ncvre (resistivity $1.68 \times 10^{-8} \; \Omega \cdot m$) has resistance $6.0 \; \Omega$. What is the diameter of the wire?

  A 1.5-cm square rod, 4.0 m long, measures 0.040 ohms. What is its resistivk x 8u w/i7i0l537cfd5hknhoy ity?

  Calculate the current through a 10.0-m long 22 gauge (the radius is 0.321f mbooc9wo2k/0l sf:;p py: +f mm) nichrome wire if it is conn ;:om0fbl:9fcwp/k +po2o ysfected to a 12.0-V battery. (The resistivity of nichrome is $100 \times 10^{-8} \; \Omega \cdot m$.)

  A heavy bus bar is 20 cm long and of rectangular cro4vy (wju0* ibd,yrmcbk-lz- : ss-section, 1.0 cm x 2.0 cm. What is the volty-*dkjl: bz4w (ubcmrv,iy 0 -age drop along its length when it carries 4000 A? (The resistivity of copper is $1.68 \times 10^{-8} \Omega \cdot m$)

  A 1.0-m length of nichrome wire has a radius of 0. hz-; 36dxdel i9z6hrn0kj g6x50 mm and a resistivity of $100 \times 10^{-8} \; \Omega \cdot m$. If the wire carries a current of 0.50 A, what is the voltage across the wire?

  A 1.0-mm diameter coppr2h*fbcw:eo0c +fw6.m7xot rpg 4jp;er wire (resistivity $1.68 \times 10^{-8} \; \Omega \cdot m$) carries a current of 15 A. What is the potential difference between two points 100 m apart?

  A carbon resistor has a resiscke)w k56kck3 tance of $18 \Omega$ at a temperature of $20 ^{\circ}C$. What is its resistance at a temperature of $120 ^{\circ}C$? (The temperature coefficient of resistivity for carbon is $-5.0 \times 10^{-4} /^{\circ}C$.)

  The temperature coefficient of resistivity o+q 4 ajaofj7i6th59 ,kxtr.jkf platinum is $3.9 \times 10^{-3} /^{\circ}C$. If a platinum wire has a resistance of R at room temperature ($23 ^{\circ}C$), to what temperature must it be heated in order to double its resistance to 2R?

  A platinum wire is used to determine the melting point of indium. The resisthy,y3l,lq tv6wz*lq 9ance of the platinuq9ywlly, z qt*63h, vlm wire is $2.000 \; \Omega$ at $20 ^{\circ}C$ and increases to $3.072 \; \Omega$ as indium starts to melt. What is the melting point of indium? (The temperature coefficient of resistivity for platinum is $3.9 \times 10^{-3} /^{\circ}C$.)

  5.00 A is flowing throug(0du)t5bgom j 3+jhhewc x65qh an $10.0 \; \Omega$ resistor. How much power is being dissipated?

  A 110-V hair dryer is rated at 1200 W. What current will(cm3 gdko)zq5ta g9+ u it draw?

  A 150-W light bulb running on 110 V draws howriy k) /)q phx4r4u8vl much current?

  What is the nominal resistance of a 100-W light bulb dese6e5v2*apxy402 nbdv .og t.f tmdw07yeuh +y igned to be used in a 120-V t*20v2e5t+ gybp7aveyy60 u nf4w.doxmed h.circuit?

  A toaster is rated 800rk6h7ltxqs3; he0 ilu*v hz1d+l q -7n1kpc7f W at 120 V. What is the resistance of its heating elemenl*k fhu qh 3x7 rk1lh+tp-cqvd7n0se176iz ;lt?

  A 200-W resistor is rated at 8 -:)zblo ra t,x+kkby$1/4 \; \Omega$. What is the maximum current it can draw?

  A 200-W resistor is rated k;p+m8+at cjgsf 0 fhb3b9i6bat $1/4 \; \Omega$. What is the maximum voltage?

  A lamp uses a 150-W bulb. If it is used at 120 V, w)gv 2a5-e tiwav)rhw8 uiy( i1hat current does it draw?

  A lamp uses a 150-W bulb. If it is used at 120 V, what is its zdnl/ /p(, r6 vdjk8n4md0mqdafe((,q 5wzmu resistance?

  A 25-W soldering iron runs on 110 V3- vo d4 (3,xu ikfnusagk/l:v. What is its resistance?

  How much does it cost to operate a 25-W soldering iron agmq82ljpk3x . 2m (oifor 8.0 hours, if energy costpgmom 2lqa.( i3jx2 8ks $0.08/kWh?

  How much energy does a 100-W light bulb use in 8.0 hoursf oef2mzz+r 9 )snr)n;?

  A 1500-W heater is connected to a 120-V line for 2.0 howv gkb(fj4;3p:7d,sd)xeagd urs. How much heat energy is prodsvwbp7fdg xg ,4(a j;d3 )ked:uced?

  A battery is rated at 12 V and 160 utyo:1s/zrs7s *lfr*e 4c,z cA-h. How much energy does the battery store?/1rr*e:7ou4fcz s ly* ,sc zts

  How much energy does +edn-dmrsr 10a 25-W soldering iron use in 8.0 hours?

  A 100-W driveway light bulb is on 10 ho erp45hact1z4 urs per day. Assuming the power company charges 10 cents for each kilowatt-hour of electricity used, estimate 15pzcet4 ar 4hthe annual cost to operate the bulb.

  A 400-W computer (computh3.b5 nim8tsser plus monitor) is turned on 8.0 hours per day. If electricity costs 10 cents per kWh, how much does it cost to run the computer38h. mis 5nbts annually?

  The monthly (30 days) electric bill included the cost of running a central air-c;p kd/o-flze pfs +.5conditioning unit for 2.0 hr/day at 5000 W,ff / lkdzp+pcse.5o- ; and a series connection of ten 60 W light bulbs for 5.0 hr/day. How much did these items contribute to the cost of the monthly electric bill if electricity costs 8.0 cents per kWh?

  The heating element in an electric drier operates on 240 V and g; ipxom2+ ma6aing7z rhjl(4 xa.0f (zenerates heat at the rate of 2.1 kW. The heating element shorts out and, in repairing it, the owner shortens the Nichrome wire by 10%. (Assume the temperature is unchanged. In reality, the resistivity of th2 o0hx(iag+64 x; apizlnm7f.m jza (re wire will depend on its temperature.) What effect will the repair have on the power dissipated in the heating element?

  14 A of current flows thro0) ax 9 lki3rg,qw)irsugh $8.0 \; \Omega$ resistor for 24 hours. How much does this cost if energy costs $0.09/kWh?

  A 9.0-V battery costhyc ,u+ 1kkls0s $1.49, and will run a portable CD player for 6.0 hours. Suppose the battery supplies a current of 25 mA to the player. What is the cost of energy in dollars per kWh?

  A motor that can do work at the rm,x 4ge.a yux*ate of 2.0 hp has 60% efficiency. How much current does it draw from a 120-V line? 4,a.*g xueymx ($1 \; hp = 746 \; W$)

  A 500-W device is connected to a 120-V ac power sg va ik x5)z ol*qf+xu-4:rl+source. What rms current flows throuvq ia:s5+*xu zxkgl)rolf- +4gh this device?

  A 500-W device is connected to a 120-V ac power sourzyhe b4 dl y0.ic(k;m2ce. What peak current flows through this de mki0 yy;2ec4d(l b.zhvice?

  A 500-W device is connected to a 120-V ac po5dcp6 ij85zatzp n21v wer source. What is the peak voltage across tp1tai8c d52 zpz6n 5vjhis device?

  The diameter of a copper wire is 0.081 inch. The maximum samy5e 9l9pso +rjs )nz9fe current it can carry (in order to prevent fire danger in building construction) is 20 A. At this current, what is the drift velocity of the electrons? (The number of electron carriers ij9nerly zo5p9m9s+) sn one cubic centimeter of copper is $8.5 \times 10^{22}$.)