A device that produces electricity by transforming chemical energy into ele3,jm1wd /anolctrica,d3n1oljmaw/ l energy is called a

  A car battery

  The total amount of charge that passes through a wire's fulln egkz :+kr5 hv( a0h7/wzigr+ cross section at any zvwra g+g(/ i:zk 5 ne0hh+rk7point per unit of time is referred to as

  The direction of convention current is taken to.v1xblk 59:dy ktlgb8 (7lp so be the direction that

  A coulomb per second is a xyvu6. cj76lthe same as

  Car batteries are rated in "amp-hours." This is a measure of the8kdv:r c: a7vqir

  The resistance of a wire is defined eg8 eve22q 08;2rujmj*odfew as

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

  The resistance of a wire.6 na+aga s73+f d)tg1oniurt is

  The resistivity of a wire dep7r; y uqhh4f3 l5qnrn9ends on

  Which conducting material has the lowest resistivity valuay 7/1obca3c qe?

  Consider two copper wires. On :jr :kk y2b3; -flkxif qu3/*ylhzau2e has twice the length of the other. How do the resistivities lf ukx2-hi yb juqz;:a/krf2y*3k:l 3of these two wires compare?

  Consider two copper wires. One has twice the length of the other. eex84hy v7: ilHow do the resistances of these two wires cev4ly xi8e 7:hompare?

  Consider two copper wires. One has twice the cross-sec1zw r-0vlrh +nhjp-3.psu+kyn 7h a/ctional area of the other. How do the resistances of thrh z0 r3ph cau- +w/+y1jn-hnlpkv.7 sese two wires compare?

  Consider two copper wires. One has twice)je:3 av x/4jwwlcdbz/ ygdp1m/:ie) the length and twice the cross-sectional area of the other. How do the resistances of these two wirxc)e ag:)w e/b1ijp4 wd /l dmv3j:yz/es compare?

  The length of a wire is doubled and the radius is a4r (1re7jptkdoubled. By what factor does the resista1r4j( trpka7ence change?

  How much more resistance does a 1.0 cm diameter rod hav wipjbf/3(c:t u pu2c;e compared to a 2.0 cm diameter rod of the same lep2:b(3uc; ijwu/ ctfp ngth and made of the same material?

  The resistivity of most common m3z+ib 00,has5aky aametals

  Negative temperature coeffuq* (tjjr()m at9oz57qu q lh(;mj. nbicients of resistivity

  What is 1 W equivale +jyv27jfz cr)nt to?

  A kilowatt-hour is equivalent n+meug (; ne qwg *r7-wjqkj t:9s1.(4kfailpto

  If the resistance in a constant/k2s eo5t mua-ey nn578ftcm9 voltage circuit is doubled, the power dissipated bs5 n 5ftak9cu tmno7/m8 y2e-ey that circuit will

  If the voltage across a circuit of constant resista*m 2i0ka(o+)q dck rx)v: u;nhui +kxsnce is doubled, the power dissipated by that circuit wx v)mnhs*u)iri;uc(2k0+ +akdq :x ok ill

  If the resistance in a circuit with constant current flowing is doubled, the psq)/2 jg*kj2 jrauzu8ower dissipated by that circuit wil2/z8k2 jujjs ur)gq*a l

  If the current flowing through a circ yv**+ hw8 u+l.swtojvuit of constant resistance is doubled, the power dissipated by that ciwvyo*h*j t8wv ul++.srcuit will

  During a power demand, t9ab4np. (u pdkhe voltage output is reduced by 5.0%. By what percentage is the power ona dp(.4bpk u9n a resistor affected?

  A current that is sinusoidal with respect to time is refp03,g7zzteh8dq r * arerred to as

  Consider two copper wires each carrying a current hvld4lvxo fe53 6/oj0 (n(jyj of 3.0 A. One wire has twice the diameter of the other. 6vvf jlxeo35d(l jn0hy(/4j o The ratio of the drift velocity in the smaller diameter wire to that in the larger diameter wire is

  Materials in which the resiz7 :q; j,e3wfkpjkcz) stivity becomes essentially zero at very low temperatures are refer cepz3 :; )kqz,kjfwj7red to as

  What current is flowing if 0.67 C of ch ozz1um);a1 rl4qm e:yarge pass a point in 0.30 s?

  A charge of 12 C pash3gpow 451h cg4v vkh;ses through an electroplating apparatus in 2.0 min. What is the ave4v ; w4cgkh31opgh5v hrage current?

  How much charge must pass by a point in 10 s fv0 iwx1t v;jxl;a1;waor 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 flow +7-lc fw:ea vre,pgsn2:z7kming 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 beedi es3xv56 ryu++ b/cln cn4bfi9 1sl8n left on for 10 min. Whanib +uxnld3 cif byls4+r9/ v618 ces5t is the net number of electrons that have passed through the coffee maker?

  In an electroplating i wwbrntnd+07 q92znflt :.4rcup t;. process, it is desired to deposit 40 mg of silver on a metal part by using a current of 2.0 A. How long u4td.n;qt w. fl2zi cnbw9+0:7rr tnpmust 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 caurk ;e n+/q4tld rts f6 :8d5yevpn3rb2se 4.00 A to flow through a resistance of 330 ndn trbvrsdqy 6kl 2tp;+e/f4 5er3 8:W?

  What is the voltage across a 5.0-W resistor if the currentjyt,s7 )wrz s8, /cpqk through it is 5.0 A?

  A 4000-W resistor is connected acrosslrevi(;;p5 fd 8m hpe8 220 V. What current will flow?

  A light bulb operating at 110 V draws 1.40 A oi fm .y82yub*uf current. What is its resistanceuif82.yyu m *b?

  A 12-V battery is con/ e;z2zcq plkegfn174nected to a 100-W resistor. How many electrons flow through the wire f 72qz4;penzle 1gk/cin
1.0 min?

  What is the resistance of 1.0 m copper 680v l5vw6 s4u2m kzhuvw.xvvwire of diameter 0.40 inch? (The resistivity of vh.zwvvuvv5lw84m 6usx0 k26copper is $1.68 \times 10^{-8} \; \Omega \cdot m$.)

  What is the resistance of a circular rod 1.0 cm .nn,)3aev tty r y2ocd38cuxi(;qm x- in diameter and 45 m long, if the resistvxo3-e 2 yn nd.qciu3y (tt,)8armc;xivity is $1.4 \times 10^{-8} \; \Omega \cdot m$?

  What length of copper wire (resistiv 4my,lss.:7ncz ab2 ,1 dht2eg/s*h2e bjyvpzity $1.68 \times 10^{-8} \; \Omega \cdot m$) of diameter 0.15 mm is needed for a total resistance of $15 \; \Omega$?

  A 120-m long copper wire (rgj nl79 z:)ltaesistivity $1.68 \times 10^{-8} \; \Omega \cdot m$) 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 resist1)i: 6znocon;u1g2wu n n ;it*ygt .dkivity?

  Calculate the current through a 10.0-m long 22 gauge (taq.sg sg(ii *j-k 32anhe radius is 0.321 mm) nichrome wire if it is q nji(*a.sis -3ggka2 connected 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 longtja/*j uy 8o2lc, xah9 and of rectangular cross-section, 1.0 cm x 2.0 cm. What is theu9y/,ac x*lh2 jj ot8a 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 8iiden7;p4 agof 0.50 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 copper wire (resistivity z)0z fn u4;f hl8dehu3$1.68 \times 10^{-8} \; \Omega \cdot m$) carries a current of 15 A. What is the potential difference between two points 100 m apart?

  A carbon resistor has a resistance of +n+ogrv2hdo a/f71sq0vj / mo$18 \Omega$ 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 oftu7aj8)yu1vx,e w qyn ud(80h 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 the melting p ikm6(co 2aon32 vqbn8oint of indium. The resistance of the p(n8k omi262q3n vab oclatinum 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 thr1mi82.i (v+i eeyw onzough an $10.0 \; \Omega$ resistor. How much power is being dissipated?

  A 110-V hair dryer is rated at 1200 W. What current will it draw?1ptsv 6w3pyv5w( s1 au

  A 150-W light bulb running on 110 V draws how much current0udb0r k dpxfts7e; :)?

  What is the nominal resistance of a 100-W light bulb designed to be used in a 1b w;dr m( olwfs-bd+wntg37*v *ezy 4720-V cibdg (eb3v-r n w4y*7w ld*+fot7;mzw srcuit?

  A toaster is rated 800 W at 120 V. What is the resistance of itxzi-;+e* ckae s heating element?iac ee;*x+k -z

  A 200-W resistor is rated2akzem 7l57 to 8l.tz(:krjuz at $1/4 \; \Omega$. What is the maximum current it can draw?

  A 200-W resistor is rated at ; mc8i.p4i 0anlrad4m$1/4 \; \Omega$. What is the maximum voltage?

  A lamp uses a 150-W bulb. If it is used at 120 V, what curre (wyua z9 aekd* +vq)xnfka4-d.ue/2ent does it draw?

  A lamp uses a 150-W bulb. If it is used at 120 V, wod6h/ k3eq yucxh9,gm;9svs ) q,x5yohat is its resistance?

  A 25-W soldering iron runs on 11z)e;ai+j,km 81 pe d:dfneh9s 0 V. What is its resistance?

  How much does it cost to operatuqz afdwtqm *o0 vd07k1z)b59e a 25-W soldering iron for 8.0 hours, if energy costk uwz15 9td70qo*vdfz )ab0mqs $0.08/kWh?

  How much energy does a 100-W light cj.5s tm+57l(iqaxss bulb use in 8.0 hours?

  A 1500-W heater is connected to a 120-V line +hsd4 xdp j)uc:vly2/*u8ncaa dd* ;ofor 2.0 hours. How much heat energy is producedd; /ondcl x)8ujhpcvd 4+syuda *2 *:a?

  A battery is rated at 125*t+;vmykaf7nb * u;rozqimv65q(n. m7d kra V and 160 A-h. How much energy does the battery store? r qkvf*i*nm6(a;m q d;575u7vaombrtnz.yk+

  How much energy does a 2gdyqny:3g0fprod )7c* i6*nk)l 8 wjf5-W soldering iron use in 8.0 hours?

  A 100-W driveway light bulb is on 10 hours per day. Assuming the power company heixm z)xdw4;10do x x.d v4zc:o4/xz charges 10 cents for each kilowatt-hour of electricity used, estimate the annual cost to operate the bulx/4 ox)zdz1e :;zvhm0xix d4 x c.od4wb.

  A 400-W computer (computer plurudal/bdd/9i;/m f u;s monitor) is turned on 8.0 hours per day. If electricity col u i/m9r/a;dfdb ;/udsts 10 cents per kWh, how much does it cost to run the computer annually?

  The monthly (30 days) electric bill included t:kvdjh/,a:hz: s hw*ngim9-w he cost of running a central air-conditioning unit for 2.0 hr/day at 5000 W, /: hhg*:k zd jmwn9avs -w,:ihand 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 e c ffj p9gk*fzsrz)a(5pc/p9;lectric drier operates 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 onc*pfjsc ;)(99zg pfa/rk5z fp its temperature.) What effect will the repair have on the power dissipated in the heating element?

  14 A of current flows thro4w .ex9zdza6d0o dk l4ugh $8.0 \; \Omega$ resistor for 24 hours. How much does this cost if energy costs $0.09/kWh?

  A 9.0-V battery costpbkk)fr pd77 a4r7cva 8m(5q ks $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 uf1u,dgorx(a 9eiat j2k3-1c;qu2wf work at the rate of 2.0 hp has 60% efficiency. How much current does it draw from a 120-V lae3 w (ux,2jui9fr- ftuo;qa21 g 1cdkine? ($1 \; hp = 746 \; W$)

  A 500-W device is connected to a 120-V yo89lv zx 3l, l(u6tzv3iiy*lac power source. What rms current flows thro,39z yzul*8v(l3oyiltxlv i 6 ugh this device?

  A 500-W device is connected to a 120-V ac power source. What idu6jwt9(p9 i peak current flows through this dev 69dj puiiwt(9ice?

  A 500-W device is connected to a 12s7,gvw wp ff6fef obrf 8,:.pslx6 ;7r0-V ac power source. What is the peak voltagefpe7s6f s,gf,fr vp6wwl 8;7.r xb:fo across this device?

  The diameter of a copper wire is 0.081 inch. The maximum safei4c c *jv. ;onkr fdbepryvt4k,g( ;f11.o+lu 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 electr1u.o;kincfg ftrpv+4 d ebv.14j*k(yo;r ,c lons? (The number of electron carriers in one cubic centimeter of copper is $8.5 \times 10^{22}$.)