A device that producew8 4b: xy(iy jn0t.k/dvjntu;s electricity by transforming chemical energy into electrical energy is called aui y(.;tynkvt j/ x80db:wj4 n

  A car battery

  The total amount of charge th3-mz4 bkz sq-ab; (ctnf/ yh)aat passes through a wire's full cross section at any point pebf-hb 4asn-q3z(y ma ;z/kct)r unit of time is referred to as

  The direction of convention current w3lm.+fv 4 dxvlf/sv8is taken to be the direction that

  A coulomb per second igd 7e gz6u-x:ls the same as

  Car batteries are rated in "amp-hours." Thih1p-oz4f, ga vs is a measure of their

  The resistance of a wire is defined asiy6r9c*l lqfcx 5oi381 9h vzq

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

  The resistance of a wire n(eoe :v3 nl2re k,b6fis

  The resistivity of a wire sjqi2xvanpx ;2;as). ibv ;+ mdepends on

  Which conducting mate/ w5prxzcn7d 2rial has the lowest resistivity value?

  Consider two copper wires. One has twice thy-kzx m zat60ov /y zfz 96qsiy37/u4ze length of the other. How do the resistivities of these two wires compare?z a7s6vyyq zzmx-tkf6i4u 9ozy/ 3z /0

  Consider two copper wires. On0bg;sa5s py6q y bic,95 f5thre has twice the length of the other. How do the resistancrbci y,;56 95 0hb sgts5payfqes of these two wires compare?

  Consider two copper wirey)x pu;uif tp)ygt: 5)s. One has twice the cross-sectional area of the other. How do the resistances of these two w p:u fugtp5yt)iy; )x)ires compare?

  Consider two copper w4ku 2asol9rn1wpl/ /jires. One has twice the length and twice the cross-sectional area of the other. How do the resistances of thesl4 1a9suok/np2 l/jw re two wires compare?

  The length of a wire is doubled and the radius is - v35el4xpd-3m a2nfv r auy4wdoubled. By what factor does the resistance cha5 v- aw 4urxfa pmel-243nvdy3nge?

  How much more resistancmyrgm .34bb, je does a 1.0 cm diameter rod have compared to a 2.0 cm diameter ro3 ,gr jmm4b.byd of the same length and made of the same material?

  The resistivity of m *f4q-c ct0wng s,nm3zost common metals

  Negative temperature coefficients .1u.w bw.estix0k8ik of resistivity

  What is 1 W equivalent lpmj4pnhd8/e 7 ;nx.1vfw -cpuk+f6c to?

  A kilowatt-hour is equivalent to-9 kczlx52a qd

  If the resistance in a constant voltage circuit is doubled, the power dis zv)pjb)m1sw 0w1q gg 0x6d(3owhe ek*sipated by that circuit wep06wwg qwx obz h0k3 j))e*dsmg(1v1ill

  If the voltage across a circuit ofsmn6l5p4 kx( d constant resistance is doubled, the power dissipated by that cirsx( m5knpl6d 4cuit will

  If the resistance in qvmir *5e5qm e t1,g1ka circuit with constant current flowing is doubled, the power dissipated by th*5mm1ee gr i1k qvt5,qat circuit will

  If the current flowing through an 4a-pak*+zu3b* iq bd circuit of constant resistance is doubled, the power dissipated by that circuit w ubb-npd*3ka a+q*4ziill

  During a power demand, the vo nb /dws(o6vn72 wdhk:ltage output is reduced by 5.0%. By what percentage is the power on a resistor affectek62 nv 7dww/(shnbod: d?

  A current that is sinusoidal withfn*p ia7;he(4x(pu qd respect to time is referred to as

  Consider two copper wires each carrying a current of 3.0 A. bcz.js,t9+.b+liytm One wire has twice the diameter of the other.9 ctzb+m+ .ijbt,syl. The ratio of the drift velocity in the smaller diameter wire to that in the larger diameter wire is

  Materials in which the res(60ik5hk lm toistivity becomes essentially zero at very low temperatu 0h(6klo i5ktmres are referred to as

  What current is flowing if 0.67 C of charge pass a point in 0.7rg8 umae3v,8 ka*ad okuur5b24z tq,30 s?

  A charge of 12 C passes through an electroplating appan l;aesvcf47vhb wd 7-5v1 pv1ratus in 2.0 min. What is the aves7 a-bv 7fc p14vvd1n5hl ;ewvrage current?

  How much charge must pass by a point in 10 s for the cua4e;:ch j25 gvcxa)k nrrent 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 if /eglg ( qt8wm s8an4e4$4.0 \times 10^{16} \; electrons$ 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 curryz 5l7 , lirhn qr9h*1f:jit:vent, has been left on for 10 min. What is the net numbhj:5fl rz*nyqt:i 917hr, l iver of electrons that have passed through the coffee maker?

  In an electroplating process, it is desired to deposit 40 mg of sixao+:77x klq)kjpmr;8p r 6hblver on a metal part by using a current of 2.0 A. Hoklppqb a;o+) kmj 7r76:xx r8hw 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 no -,dvgcai 8:required to cause 4.00 A to flow through a resistance o c-vd :,angi8of 330 W?

  What is the voltage across a 5.0-W rpl0cc ( fb voivnm(v- ,g5a:v:esistor if the current through it is 5.0 A?

  A 4000-W resistor is connected across 220 +) lb(1-(q/jae fpwcgbb6 sejV. What current will flow?

  A light bulb operatinz byt 6:d;dtv:g at 110 V draws 1.40 A of current. What is its resistance?t: d b:v6dty;z

  A 12-V battery is connected to a 100-W resistor. How mal ju /*dfvf6e)ny electrons flow through the wire /u6f*jdelv )fin
1.0 min?

  What is the resistance of 1.0 m copper wire of diameter 0.l z,l.3 hekefbi)7laq6;4 aw x40 inch? (The resistivity4ef lx a7h bzlwa);i3 klq,e.6 of copper is $1.68 \times 10^{-8} \; \Omega \cdot m$.)

  What is the resistance of a circular rod 1.0 cm in diameter kp p,go; ,3.v snw5*znfuw5pr and 45 m long, if the resfzp rnp 5u ,w.5ng*k,v;3spwoistivity is $1.4 \times 10^{-8} \; \Omega \cdot m$?

  What length of copper wire (resistivit79lwe0bodwe8i2z 0 uytr+udgziy ,1a b -ge+1 y $1.68 \times 10^{-8} \; \Omega \cdot m$) of diameter 0.15 mm is needed for a total resistance of $15 \; \Omega$?

  A 120-m long copper wire (res ef /4.hpwv00wpxyhv9istivity $1.68 \times 10^{-8} \; \Omega \cdot m$) has resistance $6.0 \; \Omega$. What is the diameter of the wire?

  A 1.5-cm square rod, 4.0 m long, measuresz8 5tbhjz6 igk 5g)jp1 0.040 ohms. What is its resistivity?

  Calculate the current through a 10.0-m long 22 gauge (the1 /luf1hmz:/vwhs e0m radius is 0.321 mm) nic0:lmh vs1/mh/ f1wzuehrome wire if it is 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 lh6dhxs ejb b5w,j6b5+ ong and of rectangular cross-section, 1.0 cm x 2.0 cm. What is the voltage drop along its length when 6wbb 5ejd5 bshh,j6 x+it carries 4000 A? (The resistivity of copper is $1.68 \times 10^{-8} \Omega \cdot m$)

  A 1.0-m length of nichr6nlzksn8 u)sct ckp, -*a++y jome wire has a radius of 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 co7p3fic6sm+-uw,kv2 z k9knq spper 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 res,y+ypxo n5j( z,gf 6r:c 1wwaristance 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 p wdeq2lo32 wk:latinum 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 resistan xoc o+0:dk63r swh,huce of tho 6hs,r cux0k:how3d +e platinum 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 through sel:) .py(g.9rlj guzan $10.0 \; \Omega$ resistor. How much power is being dissipated?

  A 110-V hair dryer is rated at 1200 W. What current will54rh*q cmt 1vw it draw?

  A 150-W light bulb running on 110 V draws how much cumwvwe08od )njo*98bvi;u 3. v *5oeh tjca:nerrent?

  What is the nominal resistancew+uv 6s* lups9mv 6u2p hnx(5s of a 100-W light bulb designed to be used in a 120-V circ(v pu5*mxh+vunps6 2slwu 96s uit?

  A toaster is rated 800 W at 120 V. What is+vrwg/jq;bza7yl)yw -j v5im z;++ uh the resistance of its heating element?q-v;uy)j yv ; +gbwrzi7h5/awljm+ +z

  A 200-W resistor is raipa6rhc4 3kv0 ted at $1/4 \; \Omega$. What is the maximum current it can draw?

  A 200-W resistor is rated w:4v1rrmq 5s o/ b7cniat $1/4 \; \Omega$. What is the maximum voltage?

  A lamp uses a 150-W bulb. w)ct+;xmy:*rus j: yiIf it is used at 120 V, what current does it draw?

  A lamp uses a 150-W bulb. i59 lgw1x.avxIf it is used at 120 V, what is its resistance?

  A 25-W soldering iro cftsb+p t35d8n runs on 110 V. What is its resistance?

  How much does it cost to operate a 25-W soldering iron for 8.0 hours, if r t+t8pzh( 6o7-nesf henergy costs(n6shho- +7t8r f pzte $0.08/kWh?

  How much energy does a 100-W 8kf*os z;0lrb; a ojv38eor0q light bulb use in 8.0 hours?

  A 1500-W heater is connected to a 120-V line for 2.0 hours. 9q ukk/ d(m*fgHow much heat energy is pr/mgqu* k(9fdk oduced?

  A battery is rated at 12 V and 160 A-h. How much energy doe6iohm+y0peb8 s the battery store?p8 mbho60ei+y

  How much energy does a 25-W soldering ir vb9aw+5j2nkrp t /es*on use in 8.0 hours?

  A 100-W driveway light bulb is on 10 hours pj y3u.zp4r ds*36 3-oinxus tzer day. Assuming the power company charges 10 cents for each kilowatt-hour of electricity used, estimate the annual cost to operate the putzj *sx3 r.o s nyz4d63i3-ubulb.

  A 400-W computer (computer plus monitor) is turned on 8.0 hours perbzdcca.u)wn/0, /9glrqq lt3 day. If electricity cl0u./lcg tbr/3)c q9dqwza,n osts 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 ai(59n eifzeq,dxi6i94 nwdmr: kwt 8v9r-conditioning unit for 2.0 hr/day at 5000 W, and a series connection of ten 60 W light bulbs for 5.0q ,89zkevi e 6d mw:( xind5ntwr9if49 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 z t/1h ijbbs+38h)s2a/lo jljand 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+ lj2l81ozhbs3 jij)bsaht/ / its temperature.) What effect will the repair have on the power dissipated in the heating element?

  14 A of current flows throughiiiv *x om2(w/vlb)p7 $8.0 \; \Omega$ resistor for 24 hours. How much does this cost if energy costs $0.09/kWh?

  A 9.0-V battery cost ).s-agy wf)o nq0 2 uxp*1t4lbaj0oozs $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 hmpsf5pv4wv 16i e8 7h9s xbop2as 60% efficiency. How much current does it draw from a 120-V line? ( pp vbe4fv6hso27m9xw1 p8 i5s$1 \; hp = 746 \; W$)

  A 500-W device is connected to a 120-V a7w tx;+iin(8f : kjyrpb9x 6sjc power source. What rms current flows throughxfyit(s:ki8p j9+ x;nw7 b6jr this device?

  A 500-W device is connected to a 120-V ac power source. Whattxro+on gl t15x8 c* d*mv+2uq peak current flows through this decx2v 1*o+ no+u8*xtl m5grtdqvice?

  A 500-W device is connected to a 120-V ac power source. What is the peak voc5fu j;uyll04.wk. b 2 jea/rvltage across th.. abw0v/2l4jc e lf;kyjuru5is device?

  The diameter of a copper jcbk bbh *8m2oq;p-g(wire 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 carriers in one cubic centimeter of copoc*28bbhqk (;j -bm gpper is $8.5 \times 10^{22}$.)