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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 xu,r)-,rbgl l9- ra msresistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor )a b-9ml ru-rl, rxg,sand 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 connn3l5ey )p0ox2xbm*ek ected in parallel, the_________each resistor il 53 *m y0xex)nokbep2s 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 j nj*q(dk4qev3;i 3ndfilament wire of a lightbulb causes the filament to become djv*3 j(dq ;e3 4kinqnwhite hot, while the 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 househjci( mz w7wg:5r1-xvp old lights are being replaced with LEDs. LED is the acronym for which one of thr-wpvm7c5 xgw:1i(j z e following 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 infprjgc/e068iv9 7 jA. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 L. W8 9r0p7n jic6f/vge ijhat 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 maprgg84j2(o2sak (i tdde of the same material. Wire II has twice the diameter and twice the length of I. If I has(ijrdggo2 4p a8sk(2 t 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/vp0kk fl0;75;b-k7svzmbc g m6 bto /p trn1j the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wm to75fb7g ; /06bl;p ks 1jzbr0vt-v/c kmpknould 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 o:roy25 kred/mymh obj- 28dlt t:34jv f material is then drawn so that it is a cylinder with new length 2L. Wjtoyd2- dm34l vjy:reh 2mto /:5kb8 rhat 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 -, busd+z,.)a u xrxbobrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to r+,x ob-du,xbsu.)z amake 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 resistors are made of the same ma0- c;ctenw+ alterial. The length and radius oflc0 -w; e+tnca each 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 battet 9l5 h7gme7e;lutjxa0+h( f4 r*sld xry in the fol(x7x*+;dml9h07a sg re 5lefl u4jt htlowing way: “Two resistors are connected 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 cirj7 kyc2ns pf27,n;jyccuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is m;fj jcn2ypk, nsc7y27ost 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 circuit0wghz grr/s2vpg6h;yq (e*8g shown to the right. The three bulbs 1, 2, and 3 - r 8q zy g p*rgrsgh6;wv/0h(g2eepresented 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 at7:sve3:j upitm/u zgpf+c 1z4 the right. If the current in all three resistors is equal, which of the following statements mustv7ic3g4p: z+1js:t m ez pu/uf 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 3qm 7). pqg5io sfqqp3a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which3 ogpmq)q5 qp sfq3i.7 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 concerning the simple circ)k .xhdp) o7ejuit shown where resistors R1, R2 and R3 are hex ohj.k7)d)pave 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 co b v5pyofu .ss8m8a-:vnnected 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 tsv8vys:b p85o af- .umhe 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 through the identij a txk,oj9f7-mwcv4j5nq08 sfied resistor in 5 seconds once the circuit a0ofw-jt,k5sjq 8m94x v j c7n 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 i6o8g8: ieljv simple circuit have the same resistance, which woulg68jlio8vie : d 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 accompaw4(w+ 0nyer7r:e4th31ovz a,6 luo lbobzqj:nying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What jtz4o:6z lh+y4(r ,b7 :nqe3rvo ua0bwle w1ois 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 conn / 0z saxxjqx0fz(:jdn0i6+rfected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 x zidj0qf0sz+ (0xj:r/af n6xW 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 resix8j(iq.p2yz.b nmh4jstors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What iq.nx4. j8pb 2j im(zhys 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 the maximumo1ww/ h o6b0gj,x2m d4(-scrdi6tpm t value of the currenj0/tswo p21mx gbh6ddi- (mo4rw,6 ctt 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 60 watt lighs 3emdh+/baze7.knfk2k 63lptbulb designed to operate at 120 vobl e+enkk36zdk2s pf3. m7a/h lts?

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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 flo esk,tlch4s5ix(, g2c ws through a 4 ohm resistor that is dissipating 36 watts of powecklsx, ,g t4he c(si52r?

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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 markebx ml/y5mcz k4 )d;*:uhsohb;d "120 volt, 600 watt.” In normal use, the current in it/b uxmlhh;c ;od45 :syz)* bkm 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 NOT8*1b qznd. uo vr83zrx be produced by a circuit containing only three3duo81 x nz.b8rr*q vz 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 equivaswe+ hnl3e6; nlent resistances CANeh lnn;s+e 63wNOT 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 togetc zfi*bgf+l.b vuftp1l1*8i , her in different configurations. If all thr.g* utc i8fl,zb +*ipf11blf vee resistors are used in a circuit, 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 single resistor is connected to a battery, a total dkxo/dt jg6/ftu + 7 ax d20zzz4(ooj9power P is dissipated in the circux0zofjxg9dt2/o kt+ ( zuj d/a67o dz4it. How much 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 pkwplgh.uc0, 9 arallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about lc9, hw0u.kpgthe 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 hjq( :d vb, cszu:qyq:rdo o(7.o 2ew3kas a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would oo dqc:3sw ,( 2:. rqq ek7zujvdoyb(: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 ff*n hg r/i.qog;tx9 kq8/ ko,llows through a 4 ohm resistor that is dissipating 36 watts of powg*it o ;k/.xo8kr,lg h/fq9qner?

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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 ds(9q aj:-eoy current when connected to 120 volts. If the prjy o-de9(s:q aice 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 4/fvlb bffay97yt36xhow much would it cost to keep a 100W lightbulb lit continuously forb69y3l 4tfxf/7a b fvy 1 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 4davh8wj hmk.)stapwv: f71/9) i:itb2g6h iz .00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents thp1af jahgbst79).) w8divihmhti :62w zv:k /e 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 ownc*+c8- mil, gguka 2tkl81h vrs 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 max cim-gckh+a12ll8 vu t*,k gr8imum 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 l7g cv-i2lsif(.fiu 2connected to four resistors to form a simple circuit as shoi f( 2ulf-v7ci l2g.siwn 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 s 97l;wal a+igy s:t2mvimple circuit as shown to the righg+ t:svy wala7l2m i;9t.
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 resistors ovnp5y/ntjas4+e.u0j u3d: 5bm k-pw are connected as shown. With the switch open as shown in the 0 w-y3k4p jedso/mbtpn.:ujn+auv55 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 ideal ammeti)i6mh u.l,lz sug :1xer, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. slz gi,:u16 lhxiu).m
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 resistors are cont 3(c) ;kj 0zu0illm/2br.bpx yze:gj nected asz(z 0miyc):b2u kjpxlrgj; elb/ 3 0t. shown. 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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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,vb-u d-5r25styjbp ,n what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have i-n,y5bjs- urpdbv 5t2dentical 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 tkl ao+ wnq4 ;to2x;bk+he right with resqako42;+ox +; kwtbn listances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in r80f+k/iu; v7zyxw( 6pylcyca combination series arcypy/ cf 8vy+uw0(li 6x7k;znd parallel 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 resisbp bl 6ri0q:rj-e /ci me**d0xtors connected in a combination series andmd bi e/ rb*pceiq6-*0xlrj:0 parallel 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 circu68tpybao*el p/vk4zaom8. m9 it diagram, all of the bulbs are identical. Which bulb will be the brightest6v tzb8/ppam.oe 4k yol*ma89 ?


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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 resistoo1jf 3t0 oais:rs are connected as shown. With the switch open as shown in the diagram the foa ti1: oj0s3ammeter 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 5i9hiw3944ov z- jrg.a k i0xqhrj5pr three resistors are connected as shown. With the switch open as shown i q4rrj.4x3a5vgjh i9r0w9hii k 5p-ozn 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 iden375bln(nzj*pp9 ah; f .xp p0tkicx7al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads kp7bpfx;txnp3n 9l *paj5i. nzc(h0 72.0 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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