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习题练习：.Resistor.
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 作者: admin  发布日期: 2024-08-22 15:34    总分: 50分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月22日 11:12  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.09: In the circuit shown, an electric current exists in the0 : iut+tymns4 metal resistor connected to the battery. Which one of the following choices best dyu+0tnt: 4is mescribes the direction of electron flow through the resistor and the direction of the electric field through the interior of the resistor?


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.06: When any four re3g0jwt w ( n-yzf* ej6s4efrn+sistors are connected in parallel, the_________each resistor is the sam6zj -(s4j03wef g*+tf ewnynre.

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.33: A current through the thin filament wire of a lightbulb causes the filam ,7w1evukrkzcrk2 1x- f plb1.ent to become white hot, while the larger wires connected toe kf1,-z.c7wp1vb1 uxkr2r lk the lightbulb remain much cooler. This happens because

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standard household lights are being replace 4pxt(l7w3 ln/o :zpowd with LEDs. LED is the acronym for which one of the fo( w3zn4o 7wopt: xllp/llowing choices?

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5#
 
多选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.16: A cylindrical graphite resistor has length L and cross-sectional area A. hv 0k +rj wa(p,jv39swIt is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 L. What is the rathvv9 rj +k0w, w(ja3spio of the new resistivity to the old resistivity of the cylindrical resistor?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.20: Wire I and wire II are made of the same material. Wire II ag1i 4md0jio1has twice the diameter and twice the length of I. If I has resistance R,o0j4gd1iim1 a II has resistance

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.31: Wire Y is made of the same material but has twice the diameter and half 2,+5cp ibmv /o:j1)wlywts yutlt/ww1bp5yj : ycm)vio u s+,2he length of wire X. If wire X has a resistance of R then wire Y would have a resistance of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindrical resistor has length L 592yg6f h ta(pkl/sik7ilm *4og - xyeand radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material beca*(pg5hg lk-/9ixt flao26i m7ks4y yeuse of this process?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.27: A junior Thomas Edison wants to make a brighter light bucc.wzl1( 0drnj.z val,m bc 68lb. He decides to modify the filament. How should the filament of a n l.8b, d0 jwccmrcvzl (a.61zlightbulb be modified in order to make the lightbulb produce more light at a given voltage?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrical re 5huh*c-t8wo2)g1 uyjde+ rw xsistors are made of the same material. The length and radius of each resis1h52)wrj +c ued8hwy* tugx-otor is:
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.22: Four resistors, each of resistance R, are p0xm* i(dwu s.sru)(0 bssv z-connected to a battery in the following way: “Two resistors are connected in series. This combination of two resisz-riw*(dx0pusb(0ss)v.us m tors is connected in parallel to a third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.35: The voltmeter in the accompanying circuit diagram has intjrj0/iy4)rhfshr rn )hj 8-s:ernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mosh )i8/:jfr0r)h- 4jhyjrsrns t nearly:


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.37: Consider the compound circuit shown to the right. The three bulbs (y9h*.ek r 7/2resj f,fs,el ufjam4 m1, 2, and 3 - represented hf4mfa e.eres/rf2lj9,,u* 7k(ysj m as resistors in the diagram
- are identical. Which of the following statements are true?
I. Bulb 3 is brighter than bulb 1 or 2.
II. Bulb 3 has more current passing through it than bulb 1 or 2.
III. Bulb 3 has a greater voltage drop across it than bulb 1 or 2.


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.30: Given the simple electrical circuit5a)u7rm usa7 a at the right. If the current in all thre5 ma 7uu7)aarse resistors is equal, which of the following statements must be true?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.37: The diagram at right represents a simpc2 r+*rp4 *v8vln ckdele electric circuit composed of 5 identical light bulbs aplv2nkdce 8*4c r*+rv nd 2 flashlight cells. Which bulb (or bulbs)
would you expect to be the brightest?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.03: Which of the foll,wkc3u+c0d edw 33kp 6uwrx+e owing statements is NOT true concerning the simple circuit shown where resistors R1, R2 andkpuw0 u3x,ceec+ w6 rwd +k33d R3 are have equal resistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbs X andY are connected in series dl3qd2e 9nw 3xa 9 dwezkq7l15to a battery. Bulb X is brighter than9zwd3le5k1 9eqa7l qnx3d 2w d bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, which one of the following choices best represents what is observed?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.34: How many coulombs will pacybf sm v///m 0/l r+eci8j:drss through the identified resistor in 5 seconds once the circuit was clos 0j d brlemc/ y/8c/m+vs:fri/ed?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.23: If all of the resistors in the following simple ic3ro(;1u6x 2cfd xev k 0bq8d o.3gzf/. vurkcircuit have the same resistance, whivd 1gf0urk kxo3;f (d86v e/czur.x b.3cq 2oich would dissipate the greatest power?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.34: In the accompanying circuixebvf9o4w618nn xgg9 t diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the pon8gw fgnvxbox91 e964wer supply voltage V?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistors R1, R2, and R3po/8 ny jfqk7- x0iu1azzw5-d are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a res75pk u/z dfy8w0x anzqo-i1 -jistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage across R3?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three differentj 3p/ b;+xqjei resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, aj;pib+ /q3 jxend R3 dissipates 6 W. What is the current in R3?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.13: A heating coil is rated 1200 w yqdk /asxk,(st;1zd m3,0a5 bff5gdx atts and 120 volts. What is the maximum value of thd(3x s;s 5tgqyzfd afa0k,,xd/5bk1m e current under these conditions?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.23: What is the resistance of a 602tycjlyj:w 7v (.stmn f ,)i+i watt lightbulb designed to operate at 120 vy,yjn 7c2ifwv+ tsi:jm) t.l(olts?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is dissipat1jm dy l;(wafg;/fhm- ing 36 watts of pl ;/ ;-dj1 ahfywmgmf(ower?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.21: A household iron used to press clothes is marked "120 volt, 600;djlbk8+z -by watt.” In normal use, the currentzkdyj+b - ;b8l in it is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.05: Which of the followin3v7:figi8 )hc ;diybeg resistances could NOT be produced by a circuit containing only three identica)eiicg h7; y8:ifbdv 3l 6Ω resistors?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.37: You are given three 1.0 Ω resistors. l8awi *lfq);ce k+/xi Which of the following equivalent resistances CANNO8)w*+li;qix fc e/lkaT be produced using all three resistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistors o4xw*jp +tyhmt mow); /, fh:yof different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance cftwo4,w t*xjyh+m;:h /)m ypoan be produced?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.35: When a single resistor is connected to a battery, a totaswgz.kv5o( o8 owiy*-l power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are cony(- *.wzsv 58gkoowionected in series using the same battery? Assume the internal resistance of the battery is zero.

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.16: When two resistors, having resistance R1 and R2, are connected in paroivha6we -r *z x(*k(zallel, the equivalent resistance of the combinati( oe( *zhx z*kivwa6r-on is 5Ω . Which of the following statements about the resistances is correct?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.46: A hotplate is designed su2w4dq s70g ucnwu(xp*ch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm g pc(xwsn*4qw 72u0d u0.45 kg of water from $15^{\circ}C$ to$85^{\circ}C$?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 o5,j/ nt ,ie9ihmi,mkm hm resistor that is dissipating 36 watts of po m,,kniimt i9 5h/,mjewer?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.24: An electric heater draws 13 amperes of oc( x-ldm+i,ztv(2 ivcurrent when connected to 120 volts. If the price of electrii2oxv(t-ivc m( +ldz, city is $0.10/kWh, what would be the approximate cost of running the heater for 8 hours?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.05 Approximately how much would it cost tok1p2z34*lj t.k 10mdjox thfe keep a 100W lightbulb lit continuously for 1 k xet*tpml034 z h.2f1dj1kj oyear at a rate of $0.10/(kW.hr) ?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.09: A constant current of 4.0ajl- m+ 3 rz edr98ur93ey(cmt0 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the re8+dmr eu9lat(-ercz rj m39y3sistance of the lightbulb?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.10: Each member of a family of six owns a computer rated at 500 watts in (:7x adsj3kod a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what sd:j x(a 3d7okis the maximum number of the computers can be operating at the sametime?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.16: A 9-volt battery is connected to four resistors to foumog0c w4v9orh 30*s 2j 6sztnrm a simple circuit avhwjg0sut32zmc 0o69o*ns r4 s shown to the right.
How would the current through the 2 ohm resistor compare to the current through the 4 ohm resistor?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.17: A 9-volt battery is connected to four resistors to form a simple circ-t t;sb zm5xp( 9pt/.utfywnci)hx1e 296nryuit as shown to the 9p9 z ci)6yr( 1.t-wnt e;p/ 2busyxm5nttxhfright.
What would be the potential at point B with respect to point C in the above circuit?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammete2m 0bvw)qjbf; r, a switch and three resistors are connected as shown. With the m)bv;jbf 2q 0wswitch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ide6p i-y,s6ymbqse7 7tral ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterse6-pq r7m bi7yt6s, y reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a swit0j nj.wk3id;; mf(a g bm.amn:ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampean0d3mnj( ;m bkf; ij.m:gw.ares.
When the switch is closed, what would be the current in the circuit?


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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to the right9 jn:1ibp/uace q2st2(pdg(f , what is the equivalent resistance? Assume that all wires are ideal, the batter/ uis1pdp( gn2qa:e (jcft 2b9y has no internal resistance, and all three resistors have identical resistance R.


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent resistance of the(h+479n(axa+ suonqplxl3 cu3 lr(cs circuit shown to the right with resistancesrau3(l lans (x4cu+qlho 3n(+s 7 9pcx $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ and $R_3= 2.00Ω$ is


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.20: The diagram below shows five identical resistors connecf88. ur+ub2bu 5cx tamo ubt73ted in a combination series and paralleac3mb .8t5 8uu x7b2+utrb ufol circuit to a voltage source.
Through which resistor(s) would there be the greatest current?


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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.21: The diagram below shows five identical resistors conne* 4*)dgknoxqmm 6h gz7cted in a combination series and pgz46 gd)7 nkqhx*o mm*arallel circuit to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagram, all )4 i tra3 8oka.ub9awbof the bulbs are identical. Which bulb will be t 4)a.a3ti 9uo8wbr kbahe brightest?


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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal batter*hzu11t)lk( 32qau; ,auxmq lr kn9kxy, an ideal ammeter, a switch and three resistors are connected as shown. Wikau(za 1xhln1*9qrk3m u2 lx; , tuqk)th the switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammerq2n1i03fy hbvp q4ee2m+ tl *ter, a switch and three resistors are connected as sn3et fy4 bpei+qlv02 qh m1r*2hown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and th+e3cktc h /zetfdh8 /6ree resistors are connected as shown. Wh/t z ce 3h+6c8tke/dfith the switch open as shown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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