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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 5 tefl(ue1:e x2u8shuthe metal resistor connected to the battery. Which one of the fols2ueth :e(ul 15xe8fu lowing choices best describes 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 mi.bsq( *ermi:.kdu* resistors are connected in parallel, the_________each resistor is the s(*:qmiu s.*kb .idm erame.

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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 lightbulbh) * s +qepev-iyfu5)natzx82t hu5 x: causes the filament to become white hot, while the lhx5-auf: xupsvneihy e28z +t )* t)5qarger wires connected to 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 replaced with LEDs. LED 9j8v4k9 nf gs3cx eobe.jcm 6 z4+fu7dis the acronym for which one of the folsm.uegf9 + xn84b7c j 6zkc43vf9djeolowing 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 resist 10o xdn,ihtl,or has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be 1tn,,do l0ih xcut in half so that the new length is 1/2 L. What is the ratio 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 has twice the-c):l5hlq1 9ltu,wy -r u,q jwyu9fwt diameter and-y :uw)w hwtl f-lj, y9turl5u,qq91c twice the length of I. If I has resistance R, 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 ofq48 e8kzxu5ca5ipks0.p tuk- the same material but has twice the diameter and half the length of wire X. If wire 50 a -8pcqkikx.tuze8k 4p5usX 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 and radius r. This piece of materm gqs2(1j5yn-uf0adfte. a7lxz1u 3 k ial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this da k -fasu1 1mxq e37 jg(5zf.2tnl0uymaterial because 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 bulb. He del09p h;yg*e/c +gk:6, h gknyhv6nuod s s9d4tcides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light p 4+euhv6;h yyo,9kg*l cghn g 9k0:s n6td/dsat 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 resistors are made of the same material. Twm4j, v;hcunp7 w 1.fjhe length and radius of eavw j,cuj 7hnpmw. 4f1;ch resistor 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 connected to a bi ,jo:)qw*z xizsk1 2y2wcr5iv c.f-vattery in the following way: “Two resistors are connected in serxivc*)2k - 12rw5zi.cjqw: z,f isyvo ies. This combination of two resistors 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 accompan4q+cv:j05iolqx/ jfmying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter re0vq j il4c/mf+x5jq:oading is 1.00 mA. The voltmeter reading is most 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 circub/ae kbao46i(ti8k+uit shown to the right. The three bulbs 1, 2, and 3 - ree6atb ubk 4ii8/k+ao(presented 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 circuit at the right:sv45lndxpd5: xsdv l7e/wu sbs676m . If the current in all three resistors is4 6l 7 6 d:vpdnxw5sexlmsuv7sb:d/5s 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 sim wds;l*h movhw 9tn ,2;5jn0puple electric circuit composed of 5 identical light bulbs and 2 u p;* jstww2;mo 0hhlv n,59ndflashlight 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 following statements is NOT true concernr0p;sa1 ps ue2t 84r2e(rnaaz*b6 o vbing the simple circuit shown wher8rpoz(a p0 6ab;ebusr 4nsa2ve *21rte resistors R1, R2 and 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 an)lswu 3,eocc pmcny3 5g,9y+tdY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel 953s e y,+m 3opccgc,tu)ynlw 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 pass thro r.k fjmd;kn(r6 *,fka-w0wdu ugh the identified resistor in 5 seconds6u.k n*mf;ja,0kkd f rrw (-wd once the circuit was closed?


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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 fol*po1q9 /qjb fpr.nb a,lowing simple circuit have the same resistance, which would dissipate the greatest /b nao p j1*,pf9.qbqrpower?


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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 accompanyinypt0bd df6e8 ( x+dqp*g circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?0 d(yfd6te+xpqp*b8d


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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 R3 are connecte +s wv9s k h*hsj5 vygyj0qx7 r*p55sfkg3:ez)d in series to a battery. Suppose R1 carries a current of 2.0 Aqyy5)7zsv93js w+ fxjhs g kgs*e*pr0v h55 :k, R2 has a resistance 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 different resistors R1, R2 andR3 are connected+a o:ms.7 o pah5tbsc(f 2rb+z in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wh(+r thzb a5.7bso+o: pca2m fsat 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 watts and 120 volts. What is j0hy1 2pw8khp r(1ajnthe maximum value of the current under8jw k0y1(2ha hjnpp r1 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 60 watt lightbulb designed to operate at 12 napw3 g8)6p s;w iq+lubp5.vgs(kpd1 0 voltsq3 i;a. 1db8+6upvwn g glkp)sp5pw(s?

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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 a ; l+,hmhpnm.4dnp2tresistor that is dissipating 36 wah4 dpmn hla2.;+n,tm ptts of power?

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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 "12ijc51) civ,mozp j.nj3fon.6 0 volt, 600 watt.” In normaijon.)5j.n p3cc ozf,j61i vml use, the current 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 following resistances could NOT t47:rarn)cilgo9 ;jqbe produced by a circuit containing onl:jc9aqi;nog4r r 7l)ty three identical 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. Which of the following equivalent qxjs celf (6*6resistances CANNOT be prodfs q*ex(c 6jl6uced 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 of different valu(/tm 8u+kbb 1alb7 sr v+oqd5ses can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resissb5d+rts8 mub(oaq+l/vb k 17tance can 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 to/3zo-z z4 ktv /zhl0kntal power P is dissipated in the circuit. How muzk/z0n ztzv4h-ok3/l ch total power is dissipated in a circuit if n identical resistors are connected 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 ba4)eae6ks(xeg r v-xt3a5 n 1paralle )e- 1(xt4areagn 6xv3beask 5l, the equivalent resistance of the combination 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 designedb(a3x(eakj jtj-3k8g such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time b((8kjex33 jt aj- akgthat it would take to warm 0.45 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 ,( any.nz g t2y7xm0xa4 ohm resistor that is dissipating 36 watts oa0 (nytmayx2, .zg7nxf power?

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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 currentk4jeg0f z:*wa when connected to 120 volts. If ta f:40w gkje*zhe price of electricity 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 costjn0 5qdiu x*/vt4 yhnf8 f*vw 1*uu.td to keep a 100W lightbulb lit continuously for 1 year atd 0 vnifufw h/**xtq.ynud4j8*tvu 15 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 4.00 A through a lightbulb resul.0q(s *, hkecctis3lrts in a power of 24.0 W associated with the bulb. Which (lq 3kse t i*.sccr,0hone of the following choices best represents the resistance 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 a d*lvn r 35rlbu58,erwt 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can be operating atn b83 rlu5vrd,w5r e*l 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 q b1e;lvx s+tat:yo94to four resistors to form a simple circuit as shown to the ri+sv t:al;box e49q1y tght.
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 resist rl )hp ic1d uno2z n/1rc30mfp/i(h0eors to form a simple circuit as shown to the i1no 0rm2pcfh/1d/e n 0l3p )u(rc izhright.
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, an1q j/ ;pu)xjpl ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diag1jp;ju)q xl p/ram 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 ideal ammeter, a switch and three: jc.hyeb5wxxx*a a :/1ek kk -;+hbzi resistors are connected as shown. With the switch open as shown :-hicz5kj:b1xe*x;y+ xa aek/wk.hb 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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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 swi6x67;jsvm ghm tch and three resistors are connected as shown. With the swit7ghms 6;6xjvm ch 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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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shoccqr :k1/-zygc6y yj27 d( htcwn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has nczc qhdc1/62( yc ytr7j-k yg:o 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 circuit shown to the vj3bt tjn6+5zright with resistancevj 5jz t6tn3+bs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo k0khxf0 kq64aw shows five identical resistors connected in a combination series and parallel circuit to a voltage sf6x kk4 q0ahk0ource.
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 identi2/ 6uv3c 7 m ptr:3:ktjrrhctlcal resistors connected in a combination series and parallelrjk6t: t u: 7/mtrcr3pcv 23hl 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 of the bulbs are identicah+ sg 4v2yktn)l. Which bulb will be the brightest? v ) n+y4shkg2t


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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 battery, an ideal ammeter, a switch and three resicklg.l 6-pj6estors are connected as shown. With the switch ole- p.j g6lc6kpen 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 ammeter, a switch and three resistors are coz 5yfk5 xvsm;g,jhrv w-4;y5( (/ wsxif oi3asnnected as shown. With the switch open as shown i5w hs (w zmrji;5x ;f(gks s y/o3f5avxvy,4i-n 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 three resistors ik dzi mq -g,t2r73oke)k es:*are connected as shown. With the switch open as shown in the diagram :ek7ik2dm)- *irqsz okte3, gthe 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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