A device that produces e r46lr:/flmtqf+tb6yl8 fl /vlectricity by transforming chemical energy into electrical energy is callefl / 6r8fttfl/4q:y6vll m rb+d a

  A car battery

  The total amount of charge thab sne fah7881ht passes through a wire's full cross section at any poin bs81nhf7ea8ht per unit of time is referred to as

  The direction of convention current is taken to be the direction thazr(z*zf,awd o17j g7 pt

  A coulomb per second isxv/g;uecby tqt)+) x ) the same as

  Car batteries are rated in "amp-hours." This is a tz q;zwt53f 9yzn((nmmeasure of their

  The resistance of a wire is definy7rn/5k a j2vm- 4ivkbed as

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

  The resistance of a wirdbho 7-a p7goxn(c(d7e is

  The resistivity of a wiieayv2+au +r, cm 1:tqre depends on

  Which conducting material hauz4rb ,l s3km1k1l c1us the lowest resistivity value?

  Consider two copper wires. One hasje7i.8x+wrhm bmps +(v.n0 ck twice the length of the other. How do the resistiviti+vmh8 wkj +rpx0(sb emc.7.ines of these two wires compare?

  Consider two copper wires. One has twice the length of the othrw k 2/; jkspvrxn,b)4er. How do the resistances of rws2xknbpjrv ;,4 )/k these two wires compare?

  Consider two copper wires. One has twice the cross-sectional area of the othe 0l 37maygkk;zd*os(f+ xdjg. r. How do the resistance dmgzf 7y.d0(;*gk x+okals3js of these two wires compare?

  Consider two copper wires. One has twice the length and twice the crosseye6s,k56c *qs,ywe.*d 82ze lms pc g-sectional area of the other. How do the resista26,mylec*ks ec.w8qde5 p zy g*,es6snces of these two wires compare?

  The length of a wire is doubled and the radiu7 1u1+tw qcf vqq7o-nas is doubled. By what factor does the renfwqq1u77q+tc 1vo -asistance change?

  How much more resistance does a 1.0 cm diameterk:q k5jj*my 0k rod have compared to a 2.0 cm diameter rod of the same length and made:qmjj y0k5k*k of the same material?

  The resistivity of most commb/te a 4w2yghm8y( bjr(bp/:hon metals

  Negative temperature 4 i/j+0x ; nmc 9vx2eaeky4roqcoefficients of resistivity

  What is 1 W equivalentv ,o;bal; pst)7 l vdop/1e5yp1d;okt to?

  A kilowatt-hour is equfa/qi7 b,0xmvivalent to

  If the resistance in a constant volt7t v czma:(3kmvjpc9v 0 zeh:/age circuit is doubled, the power dissipated bymmczk03jvt vp: :vza 9ec7h/( that circuit will

  If the voltage across a circuit of constant resistance is do611oeji mnr/ wubled, the power dissipated bjw1no/ 6mer1i y that circuit will

  If the resistance in a circuit with constant current flowikci7lhej /x6* ng is doubled, the power dissipated by thatj 7*c i6xlke/h circuit will

  If the current flowing through a circudmm0h4hu*kubyc 1 f/o6 (d bb4it of constant resistance is doubled, the power dissipated by that circui*m u(kybb14uc4mbdo 0 h/h6df t will

  During a power demand, the22ql;s e5*da1j1oiz pz t(hyd voltage output is reduced by 5.0%. By what percentage is the power o tj1do aze( 2z *5plqy;h21disn a resistor affected?

  A current that is sinusoidal with respecjgnoil p3v48mwb d(5(f4n k/ -odmqz(t to time is referred to as

  Consider two copper wires each carrying a current of 3.0 A. One w-tnq/n 1vcou.un g)*eire has twice the diameter of the other. The ratio of the drift velocn cq-/nvno. ) uetug*1ity in the smaller diameter wire to that in the larger diameter wire is

  Materials in which the resistivity becomes essentially zero at very low ;mo8 fz d2yuk,temperatures are refe,okzy2ufd ;m8rred to as

  What current is flowing if 0.67 C of charge pass a point in 0.30 s?e9k9 -vk8 mrn ebca/y1

  A charge of 12 C passes through an electropla oza1 ;lkin)l8ting apparatus in 2.0 min. What is the average currenti)alzn 18o;l k?

  How much charge must pass by a point in 10 s fo 4/pjwd:3 myxq36,piscb ykfn9j gg4 5r the current to be 0.50 A?

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

  What current is flowinge: af)c,i lqy4qg/fm07n r 4yd if $4.0 \times 10^{16} \; electrons$ 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 lcg8k n(a)9d c3 juqre(eft on for 10 min. What is the net numbe3(ka8 dc (ujq n)crge9r of electrons that have passed through the coffee maker?

  In an electroplating process, it is desired to deposit 40 mg of silver on a meta.7fr et afa(n.hu;-ba7gfij6:pi y) al part by using a current of 2.0 -n.ta. pe7jhii :ffa ara6bf(;yu7)gA. How long 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 ca.,okhed;xbmyf hh -n.g5 39mtiz:zd- use 4.00 A to flow through a resistance of 330 W?zt :i,nd.;xegz9ybh omhd 5k h-3mf-.

  What is the voltage across a 5.0-W zte*qhgh)46 2 mi r.qa)e .hxoresistor if the current through it is 5.0 A?

  A 4000-W resistor is connected across 220 V. What current will flw-r x.4.q ewxrow?

  A light bulb operatilq9 ;6t7oo ,kdx)m4ppd1sf no ng at 110 V draws 1.40 A of current. What is its resistancep9omofq4,d; sx)kl6p7n otd 1 ?

  A 12-V battery is connected to a 1 wh3u8+rr)wpq( tb+rn00-W resistor. How many electrons flow through the wi( u8qrwbwht)rr n++ p3re in
1.0 min?

  What is the resistance of 1.0 m copper wire of diameter 0.40 inch? (Te6q02s h vwg,rhe resistivitygr we6qv2s0,h of copper is $1.68 \times 10^{-8} \; \Omega \cdot m$.)

  What is the resistance of a circular rod 1.0 cm in diametegq1fu3 0r +xqo0x+a mer and 45 m long, if the resr 0x0 q3u+m1 xge+aqofistivity is $1.4 \times 10^{-8} \; \Omega \cdot m$?

  What length of copper wire (rees( 0du9nte5jv3mre;gg* - b jd3,px gsistivity $1.68 \times 10^{-8} \; \Omega \cdot m$) of diameter 0.15 mm is needed for a total resistance of $15 \; \Omega$?

  A 120-m long copper wire (resistivityun ttu f; k*8tv4k*k,m $1.68 \times 10^{-8} \; \Omega \cdot m$) 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 ref nn1j z1e,8oq:z qd,tsistivity?

  Calculate the current through a 10.0-m long 22 gauge (the radius -l9wz0skm w j:p* mij)is 0.321 mm) nichrome wire if it is connected to a 12.0-V battery. (T jk9-*0pzi mwms:w)j lhe resistivity of nichrome is $100 \times 10^{-8} \; \Omega \cdot m$.)

  A heavy bus bar is 20 cm long and of rectangular cmk :4 f7bq25sbrnqqs33s7 k ugross-section, 1.0 cm x 2.0 cm. What is the voltage drs7q: ks3 qu4r3f 5mqn7b2ksbgop 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 0.50 mm and a rezc8 e4xb 0ujwm ,w9/iff)fowyn0u*d.sistivity 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 copp: 2jwcpgb7 pb-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 ramr.8 k.-a7 dxws9nc .xjrg p7esistance 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 coefficie7t loblbd m .9:poe paz-;b,l3nt of resistivity of 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 gxz fyd ,(37xkthe melting point of indium. The resistance of the platinum wire 7gd(zy,3xfk xis $2.000 \; \Omega$ 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 through an slkpr1d9,rsns*m:a44 ip * yn$10.0 \; \Omega$ resistor. How much power is being dissipated?

  A 110-V hair dryer is rated a2 ybhz6osir hh:;t 7qedd,l+/t 1200 W. What current will it draw?

  A 150-W light bulb running on 112 c7e sjq3k2 y,dxpch+nr 5yn60 V draws how much current?

  What is the nominal resistance of a 100-W light bulb designed to be used iqsq)*uj6-t ql(, g:*e3rwg wn e g 94x*axyflun a 120-V circui* ea gr- qglxnq)wyq* :g96wuse4*xul(t3 ,jft?

  A toaster is rated 800 W at 120 V. What is the resistance of its heating elemk i2l8wk3qm9w 1nh t/jent?i /nhkj mqww 1k9l238t

  A 200-W resistor is ratet4aln so;g/.g d at $1/4 \; \Omega$. What is the maximum current it can draw?

  A 200-W resistor is ratenu/6( m7qexr*od:5xw zq i-hmd at $1/4 \; \Omega$. What is the maximum voltage?

  A lamp uses a 150-W bulb. If it is used at 120 V, what currelvon h(c .pq3u.5i7f4ju5vhl nt does it draw?

  A lamp uses a 150-W bulbr 7e++xt jcul+. If it is used at 120 V, what is its resistance?

  A 25-W soldering iron runs on 110 V. What is its rrt,l+l 3- ysfi:jvky ,esistance?

  How much does it cost to operate a 25g1wf*mf6k;iiw. msk 4-W soldering iron for 8.0 hours, if energy costsm1;s ki gfw.4 imw*fk6 $0.08/kWh?

  How much energy does a 100-W light bulb vowvs w-+4c)lntk2/r use in 8.0 hours?

  A 1500-W heater is connected to a 120-V lixq3tgun6k1au8)dg 2 gt b9lj6 ne for 2.0 hours. How much heat energy 12 ntbxka8 uug)39dgl t6gq6jis produced?

  A battery is rated at 12 Vd9dy+l i,rd y0a j0o+o and 160 A-h. How much energy does the battery store?, +9dy+oj0 y ldaidro0

  How much energy does a 25-W soldering iron use in 8.0 h dr)d*) pu8e6; egwoooun-h7be3byb 5 ours?

  A 100-W driveway light bulb is on 10 hours per day. Assuming the power compajkq2jo d):v2cny charges 10 cents for each kilowatt-hour of electricity used, estimate the annuaq)o dj 2j:2vckl cost to operate the bulb.

  A 400-W computer (co g*7utpsonlggl+)im d l44+ :bmputer plus monitor) is turned on 8.0 hours per day. If electricity co *lp74: ot)bngslm li+ u+4gdgsts 10 cents per kWh, how much does it cost to run the computer annually?

  The monthly (30 days) electric bill included the cos,)4 ebwwjpr 3zys(;z qqyy( :at of running a central air-conditioning unit for 2.0 hr/day at 5000 W, 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 monthlzqa(;:r y)z4yyw3 bswpq,ej(y electric bill if electricity costs 8.0 cents per kWh?

  The heating element in an electric drier operates on 240 V k1flq3.daj6lb - p4sgyi 2v;qand generates 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 the wire will depend on its temperature.) What effect will the repair have on the poweq4.lba;16ldv q-2skg p3 jfyi r dissipated in the heating element?

  14 A of current flows through mgtcs+pdb d d .)128xz$8.0 \; \Omega$ resistor for 24 hours. How much does this cost if energy costs $0.09/kWh?

  A 9.0-V battery costs )99xl yxl7wjj$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 rate of 2.):,cdhp; c3y7t tkatl;ae8 b m0 hp has 60% efficiency. How much current does it draw from a 1;y a:lkp m)t,hctc7da et;b3820-V line? ($1 \; hp = 746 \; W$)

  A 500-W device is connected to a 120-V ac power source. What rmlsk3 as*7iu v0fky+n3s current flows thvkf il s0+asun*7y3k3rough this device?

  A 500-W device is connected to a 120-V ac power source6)p 1dd)m frijs45u cx. What peak current flows through tmd5dijf c1upsr 4x)) 6his device?

  A 500-W device is connected to a 120-V ac power sourhx.w8w 1a kjts45m ww4ce. What is the peak voltage acja4xtw ww.ksw 18h4m5ross this device?

  The diameter of a copper wire is 0.081 inch. The b/0, ply ov w+u6-n. emq-klga.b+jonmaximum safe current it can carry (in order to p + wy 6qa-v+n lej lub,p0.b-n.omkg/orevent fire danger in building construction) is 20 A. At this current, what is the drift velocity of the electrons? (The number of electron carriers in one cubic centimeter of copper is $8.5 \times 10^{22}$.)