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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 tr+an+s yuato0p 3-sn2he metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through the in +2ayrs-p +o0nua tsn3terior 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 connected in paralo* wh pt;5o -cexj b6x+xz9q4ulel, the_________each resistor is the +*w54uzqeoxjx6 chtbo; px-9same.

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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 lirxw e-9i 1(tg 9ubnol2ghtbulb causes the filament to become white hot, while the l9u bnigr1 lx ow9(-e2targer 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 re2,3broa 4pyw - xuzjl*placed with LEDs. LED is the acronym for which one of the following choi3 ru o-4y,p*xjaw2b zlces?

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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-sectiona3r:pgix (zk2z tw84dkl area 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 L. What is the rzxg ikzkd83pr :t4(2watio 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 sam1kt9q7cyvf1q *bw7q me material. Wire II has twice the diaqt1mqckb* w9qf v7y71 meter and 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 materid, +p6tq2zqwwg 5-yno+ m i8pkal but has twice the diameter and half the length of wi 5 +mk62wnzpp,d8-ywgtoqq +ire 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 b/-ri/y* zormt4dcghl 0)-. l :seszzlength L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happeno: *r.d-zzy/c4i lt- g) zsle0mhb/s rs 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 make5saqn*p /d5 be a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a giva*bsd/p 55e qnen 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. The lenxnw,q*as)8rr iof3( m gth and radius of each resistor is:(f) wnrx 3,8rqms ai*o
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 battery in ju4zse;i ypm ;xs0 sqc-k +e**the following way: “Two resistors are connected in series. 4zsmxspeq;;u-je0yc *+kis * 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 accompanyi3egn(h9j z:ty8vpgcwc z i uc26t+p75ng circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohpchz+(ypgu t 63in9cwe5zj2 8 vtc :7gm. The ammeter reading 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 jai,xm) 3 pn-z/r3eoashown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the d/ zjma 3ino)a3e rp,-xiagram
- 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 ci0c+o8 vwbho0wyw;ayjy 6u+m1 rcuit at the right. If the current in all three resis+ m8 ;c +y00ywhay wovbju1wo6tors 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 simple electric circuit composed of 5;h 3+x*natrm y identical light bulbs and 2 flashlight celt+xa;*nmrh y 3ls. 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 w9x4 xxq- fz0kswbd(u7vguj. w 474vpstatements is NOT true concerning the simple circuit shown where resistoudxw4p w9-u47xgvf4b 0.jkv zxwqs7(rs 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 andY are connected in series to a battery. fh-qr6( -2gcx(jlzsd Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parall qh(df- 6(rlzjc2xg- sel 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 through +p,k gpb*i9ys the identified resistor in 5 se 9i pgy,pk+b*sconds 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 t.gh d s3optj,8he resistors in the following simple circuit have the same resistance, which would dissg t38dopsh ,.jipate 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 through the 6.0 Ω v 2cbt 9lquk:r9k5/ gtoe3v5b3yw+mc resistor is 1.0 A. What is the power 9 9k5r5c+ut3mvlk g/bcw:vo2 tqb3y esupply 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 seriqlf h/:i a7i/ves to a battery. Suppose R1 carries a current of 2.v /ih/aq:ifl7 0 A, 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, R2i l ,+u fm8g12dhot6 x4qmyew- andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dis- et4fyx q2iw+,hmudmgl6o 18 sipates 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 watts and 120 vr g9o,zw*y 5ymaud,0 e4olhc+olts. What is the maximum va5 gmc4yaouodl9,w y, z*hre+0lue of the 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 60 watt lightbulb 8rbw.*xpf :isdesigned to operate at 120 vprxbfwi:s 8. *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 thro3.puvl6 qm0g 6p01t2nb6gda o zers7jugh a 4 ohm resistor that is dissipating 36 watts of pogs0vqe6 0a2 go 1lupr.mtzp6jn6bd7 3wer?

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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 watyq9qkf3)* cl xt.” In normal use, the current in it iskyfx )*9q3q lc

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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 resit3vpc f57b)nh stances could NOT be produced by a circuit containing only three identical 6Ω h 7fcvt)pn3b5 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 follz1/d.q mrbr0cowing equivalent resistances CANNOTrr m10q /dzcb. 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 differitpg 2vj 5qgx+ 3;,dcnent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanceqgpt3dvx c2gn;5i, j+ 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 power P is d1th aqo ye0uqzp 4f) yc28i,7lissipated in the circuit. How much total power ia c2yy1,lo08pqi4e)tuh q7z fs 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 resistorsls 1/) dicovx1k r-aq(, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about-l (1 si1 dx/r)voakcq 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 su5b81ssxy d2ejch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount ofs 58sx1dby2j e time that 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 py 4.bh76- jkyv32rmv/ ovvvc flows through a 4 ohm resistor that is dissipating 36 wat6cyvvv3r 7pb2vkj/ o y-.m4hvts of 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 drawswo,yfmpqsg-*c n *mq6rm4 )8vl22tkg 13 amperes of current when connected to 120 volts. If fmtgkmmw l 2o2-8*v4q) nrs*,qyg p6c 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 100W lightbulbwr5 cq-e+( :ufdnj: zk lit continuously for 1 year at a rate zundej: +cw:(r 5qfk -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 througp/de,bsny)o l 0 4ra+zh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices ben/p zba0ylo +) rde4s,st 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 rdulhb+0:v2 f (:swir;(y - rady m/tgof six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit sydh t(w;d: f b-gi ral0+m:vr2/(yurprotected by a 20 ampere fuse, what is 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 connect ;6,ui (k9g4h knmuxzaed to four resistors to form a simple circuit as shown to the uikmhak(z ngx6 4,u;9 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 simpl gkph4t,2z*x 0ld9 kzne circuit as showz k,hlt2k40nd 9xpzg *n 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 z + b3ayw2)gxqresistors are connected ab2z)qaxg+yw 3s shown. With 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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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 elqq4 zwin+4uo*g) sper/c9 2three resistors are connected as shown. With the switch open asnze g9r+u)e4is/24 qow q*lp c 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 resjo7 h. c k w7uyp.6r4wmnr,.cdistors are connected as shown. With the switch open as shown imo pjd.r4cww67uhk.,r y.7 c nn 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 rig y dajwf (e*hnlz)3rl52j/h7nht, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three res ahlj(fdj5 /2l wn3)n7 *eyrzhistors 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 rigc7l123-v laub07*1l/xoo o wqxwgo iv ht with resistances /71 vxgi ca31o*owxl- uwlv7q02olob $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shy8w 3tkv61 aifl01;ul:a peleows five identical resistors connected in a combination series and parallel circuit to a voltagw 13 t la:6lu8iev;pkale0yf1e 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 up /+tjdpl0 e:identical resistors connected in a combination series and parallel circuit to a v+:tu/ p peld0joltage 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 identicac5vr,epr5 d:1vm j-o tl. Which bulb will be pj5 tmd: c15vovre- r,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 ammetegjcrzz ,nlm+ 3/+g5ner, a switch and three resistors are connected as shown. With the switch open as shown in tnjzc3g,ezm rg/5l n+ +he 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, a 8z ohfkek2iq o/8(cw*a(.ti +( eulaxn ideal ammeter, a switch and three resistors are connected as shown. With the swi+ o8a*ei( wz ex ikh/8o(2 fcqtl(.kautch 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 ideal0 r +dmsc1 ivu)xw/u9f ammeter, a switch and three resistors are connected asdvx i1r9s/+ u) uwfmc0 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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