A device that produces electricity by transforming chemica+b o0i4fgf04jx7 mylfl energy into electrical energyoi+ 04xj flf7b 4g0myf is called a

  A car battery

  The total amount of charge that pa.(ewrdr , sa+i8 vshy9sses through a wire's full cross section at any point per univ(+r 8r,9sh .wd yiseat of time is referred to as

  The direction of convention current is taken to be the direc,a*i)+zv(z9gw6l fwg k h um,msj 1ks(tion that

  A coulomb per second+z,e(iju c *nk is the same as

  Car batteries are rated in "amp-hours." Thi*y*o i-9 *b cy-cuetbxs is a measure of their

  The resistance of a wire nih/l gqkou+ve(96;yy * t wx)is defined as

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

  The resistance of a wil es) q..bd2dfre is

  The resistivity of a n+a+os 0 ;wmnbwire depends on

  Which conducting material hasl o 4f8lwg(h:r the lowest resistivity value?

  Consider two copper wires. One has twice the length a;ur)n7* 5; 2xl v0d2e q+glipsf zflmof the other. How do the resistivities of th52 i zplsx0;l+drqffvn ul2g)m;*e 7aese two wires compare?

  Consider two copper wires. One has twice the length of t9)g0g-a;i tadbpv )l dhe other. How do the resistances of these two wiresg)0p 9d b-v ga;)ldtia compare?

  Consider two copper wires. One has twice the cross-sectional area of the ry np8.3q9cjv other. How do the resistances of these two wires conjr 9cyq8v3.p mpare?

  Consider two copper wires. p )a+ubva)j nz: j-zv; One has twice the length and twice the cross-sectional area of the other. How do the resistances of these two j ;:ba)v vn+a zpu-j)zwires compare?

  The length of a wire is doubled and the radius is doublp8lp :o5aq1l ped. By what factor does the repplq1opl 5a: 8sistance change?

  How much more resistance does a 1.0 cme m/2v3, ffushbf5 (xs diameter rod have compared to a 2.0 cm diameter rod of the same length and made o ev sf(hff5m2b3/ s,uxf the same material?

  The resistivity of most common( q: ,a-jgyqzc5yj8zx metals

  Negative temperature coefficients of resistiviuec(4hjhcrxk hur4 ch923a a u3bh5: :ty

  What is 1 W equivalent +o4nihj:h.d wto?

  A kilowatt-hour is equivalent h .uiv37 9;qga eitjs,to

  If the resistance in a constant volz)w+t3*eo)a ba 8 0g+aev f v.xo3rb0ewes ;lctage circuit is doubled, the power dissipated by thate z0l)ac w;+oba forb30v3 xev.a*8wgee +s)t circuit will

  If the voltage across a circuit of constant resistance 3h 4wk(+y4,qp5s pdl(hxwp8 e zpmv3fis doubled, the power dissipated by that circuitwfw(psmhhp+zp (k v,5348 d4q p xeyl3 will

  If the resistance in a circuit with constant current flowing is doubled,q5 g970*0ypolsfpq z wa/* b g7lvznp9 the power dissipated b*7vq/ *z0gpn l0f z p75qlb 9syopagw9y that circuit will

  If the current flowing throu kw oh;raeh924gh a circuit of constant resistance is doubled, the power dissipwrh2h9oek 4; aated by that circuit will

  During a power demand, the voltage output is reduced by 5.0%. By what percental 2ack2v -lp lt:q(.3mdje2lrge is the powqll(mj.r 3l-ale22 v pt:k dc2er on a resistor affected?

  A current that is sinusoidal with respect to timedcz csed7-2ac0 fi8.e is referred to as

  Consider two copper wires each carrying a current of32kae x h hxj 6-geul+y1;csz. 3.0 A. One wire has twice the diameter of the other. The ratio of the dri2 x;g3h. +6xkaujzlh-1scy e eft velocity in the smaller diameter wire to that in the larger diameter wire is

  Materials in which the resistivity becomes essential/vzbr8:pffxuw ;4xgf +46dxx ly zero at very low temperatures ar f/+v:4x zf x f4dxubw6grx8;pe referred to as

  What current is flowing if 83+ szgzhe-k9 n3j4iphv2z a r0.67 C of charge pass a point in 0.30 s?

  A charge of 12 C passes through an electroplating apparatus in 2.0 y i*gad88gpx37k9wk 9y6 c pab2:- lujop 4puvmin. What is the averagepl 92 p:34*ogucp89guw6p8akk7dvba-i yx y j current?

  How much charge must pass by a point in 10 i0 -6(7hmblvp+d-mmdersxp2 s for 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 flowing i :51nn/tzinfv f $4.0 \times 10^{16} \; electrons$ 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 mom2zdj22c/b13.5 A of current, has been left on for 10 min. What is the neb2m j o2/zdmc2t number of electrons that have passed through the coffee maker?

  In an electroplating process, it is desirednj lug b,im6.o5tg85q to deposit 40 mg of silver on a metal part by using a current of 2.0 A. How long must the current be allowed to run to deposit this much silver? (The silver ions are singly charged, and the atmi.o gjq65u5g t8,lbnomic weight of silver is 108.)

  What potential difference is requiredn) xx8q -xbro6 to cause 4.00 A to flow through a resistance of 330 )xoxnx r-8q6bW?

  What is the voltage across a 5.0-W resistor if the curre vwk*(d (ro;rtnt through it is 5.0 A?

  A 4000-W resistor is co-c0yz6 .)vr bvlhe+.gazfs* rnnected across 220 V. What current will flow?

  A light bulb operating at 110 V draws 1.40 A of cup-z,p,j6qgni z ii3; frrent. What is its resistance ni gpz-;i,qiz3j,6fp ?

  A 12-V battery is connected to 5;(jadeeetb 9h*osv;a 100-W resistor. How many electrons flow throug5d;oateb vsehe *j9;( h the wire in
1.0 min?

  What is the resistance of 1.0 m copper wire of diameter 0.40 inch? (The 3wja o1j3na 0sresistivao j130j wnsa3ity of copper is $1.68 \times 10^{-8} \; \Omega \cdot m$.)

  What is the resistanw3 rdi9 qfx-t(xr *7hokue*h-ce of a circular rod 1.0 cm in diameter and 45 m long, if the resistivity oti9rhqk-xd*( h3* efw7x- ur is $1.4 \times 10^{-8} \; \Omega \cdot m$?

  What length of copper wire (re8eia/xk*yx5ub, , dzu sistivity $1.68 \times 10^{-8} \; \Omega \cdot m$) of diameter 0.15 mm is needed for a total resistance of $15 \; \Omega$?

  A 120-m long copper wire (resistivit(z8yee;cwq 6m po hq3+y $1.68 \times 10^{-8} \; \Omega \cdot m$) has resistance $6.0 \; \Omega$. What is the diameter of the wire?

  A 1.5-cm square rod, 4.0 m 3ne,k7(z oep plong, measures 0.040 ohms. What is its resistivity?

  Calculate the current through a 10.0-m lol kg6gr64 iiqk1rzq 0,ng 22 gauge (the radius is 0.321 mm) nichrome wire if it is connectk ,qz1lgiq4rgi60 kr6 ed 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 rectanguu1tg9 yvi+i 2*dgt5k slar cross-section, 1.0 cm x 2.0 cm. What is thdu1tg2s9k*iv giy t+5 e voltage 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 0.50 mm and a resistivit gr6edgarb:dy+.o/ idev;(k- y 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 copperofi3::;jom sj/4lu gb)o (tqv 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 res9caq.f37r h(hbtz gw; istance 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 of plavc f:lw-xyzzz)-/ flca7gc b:o, (a0gtinum 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 meltingf+apnw 4099b 0bdyfss point of indium. The resistance of the platinum9+dwy bs4ba fns0 9fp0 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 througcg 4yxn42qi5mh an $10.0 \; \Omega$ resistor. How much power is being dissipated?

  A 110-V hair dryer is rated at jmph.w s -qadl x+ zo o,)0.j/mw1lud41200 W. What current will it draw?

  A 150-W light bulb running on 110 V draws how much cohq)d0w+d:+ .k rlqa(.k vod current?

  What is the nominal resistance of a 100-W light bulb d :d y5aek+4(gthbtjs :8ld/gzesigned to be used in a 12:: zbe8 hdtal (tg4sjyg/5d k+0-V circuit?

  A toaster is rated 800 W at 120 V. What is the resistance of its heating elemb i-rrw94i)ee ent?i rre 4)ieb9-w

  A 200-W resistor is gy ada 3whbtdm/pl)34m,slm 6x1 s+0v rated at $1/4 \; \Omega$. What is the maximum current it can draw?

  A 200-W resistor is 0arl9 a6,znnf0 9m1sxdkqlh/rated at $1/4 \; \Omega$. What is the maximum voltage?

  A lamp uses a 150-W bulb. If it is used at 120 V, what currentcx)1g rbl qw)7 does it draw?

  A lamp uses a 150-W bulb. If it is used at 1 :t460zjr xl6 yb3:bwd ksjcy120 V, what is its resistance?

  A 25-W soldering iron hw:vg 5c- k/uhruns on 110 V. What is its resistance?

  How much does it cost to operate a 25-W soldering iron for 8.0 hours, if edc, 6cxj83 ,pa.-mkanrc y/ fknergy costs fyk ,m3.a, 6/c d8axccpr-knj$0.08/kWh?

  How much energy does a 100-W light bulb use in 8.0 hours?b:,* hu4;0wouknkpsr

  A 1500-W heater is connected to a 120-V line for 2.0 hours. How mu wq3.s1tbvss -(btz, fch heat energy is produw t(qf13vs-.ztbs,bs ced?

  A battery is rated at 12 V and 160 A-h. Howa ali)f5qmin0cpl 2,2 much energy does the battery store?n20aca,l25q p )l imfi

  How much energy does a 25-W soldering iron use in 8.. 7 aa16i8enboli8 w ffex dh1uo,*9ps0 hours?

  A 100-W driveway light bulb is on 10 hours r jp 7v3wnge83per day. Assuming the power company charges 10 cents for each kilowatt-hour of electricity used, estimate the annual c wvjg 3re37p8nost to operate the bulb.

  A 400-W computer (computer plus monitor) is turned on 8.0 hours pec-ehm(,s wh +lqq5/ae r day. If electricity costsaqc5+ l,(hwmqe h/s-e 10 cents per kWh, how much does it cost to run the computer annually?

  The monthly (30 days) electric bill included the cost of running a central airqona981rldhb.u/o 6f -conditioning unit for 2.0 hr/day at 5000 W, and a series connection of tlnh169 obq/f oar8. uden 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 operq;hs:4 szqzgzg0o. +e ates on 240 V and 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 repaos ;0gzs.+z ezqhqg: 4ir have on the power dissipated in the heating element?

  14 A of current flows through ; hbr4fe j(;fnkikz-v*)gk u.$8.0 \; \Omega$ resistor for 24 hours. How much does this cost if energy costs $0.09/kWh?

  A 9.0-V battery cost -mr ixnlxv176hsp9a.)jz: cts $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 2.0 hp has 60% effi1l:t6k9 45w uxznqnizciency. How much current does it dr kt:xz4q 6znn u915iwlaw from a 120-V line? ($1 \; hp = 746 \; W$)

  A 500-W device is connected to a 120-V 0+ygnwq+i:nu-xza d3 nlfd ,7ac power source. What rms current flows through this++:q-3ngz wanl ud7x,yn0d fi device?

  A 500-W device is connected to a 1cf) sxu57 1eimhp;goaw h7 v2020-V ac power source. What peak current flowshm x10uc7)iveap 27g5wo sh f; through this device?

  A 500-W device is connew9rfqrzlzb :vra.x(;; ghuzs8v0 c.9 cted to a 120-V ac power source. What is the peak voltage across thisu9 a;z0vq.(gvf :czr xl.h s8rz wr9;b device?

  The diameter of a copper wire( ddrtrvtq s.qa;2z0jy(su2 1 is 0.081 inch. The maximum safe 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 carr (.rts 2t 0qad;uzqy jd2(v1sriers in one cubic centimeter of copper is $8.5 \times 10^{22}$.)