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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 the metal resisj 0i 4tjo;t) 2xxxeb,htor connected to the battery. Which one of the following choices best describes the direction of electron flow through the ,ot 0xh i;)4jb2jt xexresistor 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 resistors are conn8s;txo7w 2yeuy: b9keected in parallel, the_________each resist9ky btsyu:o2;8exe w7 or is the same.

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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 lx2 g)y)k)ul7tj3ow dfightbulb causes the filament to become white hot, while theg3k2)ou)7) yjfltxd w larger 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. +s.s mz3 a7dqvLED is the acronym for which one of the following csz3v7 mad+q .shoices?

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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 au. 0r(x c:u dpk5w.nqhkf(xv4rea A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 wup( x:hk0ucxd54q. kv(frn.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. zkww,obzc,a1bft.. z09mw:ox l)b3gh 3s 1rk Wire II has twice the diameter anc1 w3b9b z,x3o w.h1mw zzl,:bg.0)frkk otsad 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 of the same material but has twice the diameter and hala.q/ch( qcisrg tl1c j( nv53)f-8 uocf the length of wire X. If wire X hascqsqri .nv5g( )13a8luf/ joccth-c( 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. t-gu gcu9p7 e(rnq (*sThis piece of material is then drawnq 7 - (9nst*cgeuup(rg so that it is a cylinder with new length 2L. What happens to the resistance of this material 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 bulbq2fjjd7 , hle. cmpy8wlmxu/t-4 7s9p. He decides to modify the filament. How should the filamemljw uqx4hfyc27s9 p .pt,7em -l/jd8nt of a lightbulb 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 cylindricaq+pegr1q+p(ie0f4 na 2,(tcc0ubnpsl resistors are made of the same material. The length and radius of each resistb1upp +g fs(ca2n4 qrnc 0teq(0+,iep or 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 jemyd2q 0fth.b m8k.5a battery in the following way: “Two resistors are connectedkm .. 82thyjf 5dqm0be in series. 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 accompanying circuit diagram has i bcunjn.z. zi6.)k 2 4ft0 raoxk8l1hunternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading n.0utu a1cn 4i 6jzb28rx.oh.kf)z kl 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 circuit shown to the right. The three bulbs 1, l .1 g8s;z - stwclqfcg.qlx0:2, and 3 - represented aqw;g.:l0ctl-fxs 8gl1. sqc zs 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 d+ 0hzc jil1r58r mz4acircuit at the right. If the current in all three resistors is equal, which of the following statements must hrm clar 1jzdi 8z045+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 .9r+ ( re*ce ,(rbf mr5vq4yq+ 1qqqure rrx,xright represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bqc,4 * uqrqq+e.r qrm(9erex5 f rb +yr,(vrx1ulb (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 i m*+ex 9s:shfls NOT true concerning the simple circuit shown where resistors f sl9 hsem:+*xR1, 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 andYg,p3vdl it bcq qq, 5+a bafqqah88+95 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 with each other to the same battery, which one of the following choices best represents what is o5+h q9qa8c+api5,,faqb l bqvdtq83gbserved?


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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 through the identified resisw 7 c1;mtd6xp 46qv6m9 vqwkpxtor in 5 seconds once the circui7x94t 6p kc ;pqwv1 dqm6vwm6xt 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 following simple kdn05a 5s z83tnb)r/bdtr 7 btcircuit have the same resistance, whichk tb78nrb 0 d3 rat5sbnd5)/tz 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 circuit diagram, the current throug:wh7jwf7(6y oyygx 0 wh the 6.0 Ω resistor 7 j:of6(wyw7 yhg yw0xis 1.0 A. What is the power 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 R3 are connected in series g y9 *p+1kk;:la*yrw u 6dwjfnto a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance olfd ;: gyy+16n9 a*ujpwrw*kk f 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 in parallvc4. 1shy wim53z7 ltyel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cu y13iht5mcz yv ws.l74rrent 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 : i8xg,smd2:yez1o3 iyjr r 2cand 120 volts. What is the maximum value of the current underrsiz :ir2cy:e,3 x1o8 ymg2dj 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 resisrntt 3-jvqt9:d cj5 m4tance of a 60 watt lightbulb designed to operate at 120 volts?35-9nmtrv cj t :4tqdj

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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 resis8jplpt q (gh-s s/.(vm+w*-ksphidb*tor that is dissipating 36 watts of pold8.k/s+s i qtbh(pms*g p-j-vwh*(p wer?

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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 wsjl4h9p isj.v8m+4jvolt, 600 watt.” In normal 8jj .jlhvp944iw m+ssuse, 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 resistancesc26nxwg)37c qvawv d 4)qc*w*nt(vd d could NOT be produced by a circuit containing only three wa7cv q)(dtw2d)6x* n*w c gqvd3c4 nvidentical 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 phxn l,35:(m zc gleeh9o2f 8xresi8gn3ez cmfh(l2x :o5l9epx, hstances CANNOT 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 of different values can be connected together in differjq(e)b;la 3,0 gds kceent configurations. If all three resistors are used in a circuit,l es0 ak(3bejgqd)c ;, how many different values of total resistance 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 singleob d)/y:wm 1ix resistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assiy1b wdx/o:) mume 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 x1e,z s ppc6ctr24vv4, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the folpvsc1x6cztvr, p2 44 elowing 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 such that it has a resistance of 122hq veyf :xtm3f1c 83vΩ when operating at 120 volts. What is the minimum amount of time that it would take t81mvf cvyeh2fx :33 tqo 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 4 ohm resistor that iclzr-xi68 9pb:fqt9is dissipating 36 watts of powel 68c9q9f- z i:xtprbir?

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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 ddf(eejvl ,tv,xij- )8 raws 13 amperes of current when connected to 120 voltd,- 8ftx vejj(evil) ,s. If the 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 cost to keep a i;1ie n xjmjoy)hx9+ip91xe/ 100W lightbulb lit continuously for 1xx im9)1iio;jxj1h9 eneyp /+ year 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 4.00 A through a lightbulb results in a 638+ 3hetmk(ymqm zrmpower of 24mket33mr q8mz+6y (hm.0 W associated with the bulb. Which one 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 oqvc0l +- ,qjkyf a family of six owns a computer rated at 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 col j k+0qyc-,qvmputers 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 form a simnna3 5:3yf hreple circuit as shown h33n :neyar5fto 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 e,l 7m3r2gy mdz -(.eie1cuvma simple circuit as shownm- (dyzvulmc mi.ee13ge2r , 7 to the right.
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 ammeter, a switch and three resistbs:u.vj5 o-p )it om0cors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.5ojc i)u :-.t0sbo mpv0 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 ry zn- zn1 /:rxez p/wrk794p-mypn : cr6g,hpresistors are connected as shown. Witwm n-g,rxc7p6-z nhzyz/p 19 k/p 4 pry:r:nreh 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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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 switch and three resisti23r qbrl;t 8zv r(y4uors are connected as shown. With the switch open as shown in the diagram the ammeter yi(;v2 u3brrl4zt8qr 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 shown to the right, what is the equivalent eg8.q bg6 mz0fresistance? Assume that all wires are ideal, the battery has no internal resi0g.68meq fzbg stance, 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 right) ipmg h9m: ml4(5utio7lt 6 m*vge.wa with resistanlge) .mmtopw 947hi *i :ut6m(lmg5avces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 beld c cc1jji,y+8ow shows five identical resistors connected in a combination series and parallel circuit to a voltage sojycc j,81c+d iurce.
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 connected rfqxffwe3as,*f +f - *in a combination series and parallel circuit+* w eaff-,sxrqff*3 f 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, j2vfn9 l g;ot9./aulz all of the bulbs are identical. Which bulb will bevguzl a.2lof ;/tj9n9 the 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 battery, an ideal ammeter, a switch and three resistors are conn3 vh4f uo5kv-8/y ufsvected as shown. With the switch open as shown in the diagram the4vh k- fo3 uv8yufs/v5 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, ak7b- u:x5lypd u 7qe8v switch and three resistors are connected as shown. With the switch open as shown in the diagram : xudkv57ye p78- qbulthe 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, g2,4hp +k(ccln w vz8fa switch and three resistors are connected as shown4+ c(cw v,zlpkgnfh2 8. With 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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