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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 resistor l:r1 i6 f28h5 qvmqpcu;ut k2jconnected to the battery. Which one of tkhtfl;: 6r1q uj8im 22qpu c5vhe following 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 resistors are connected in parallel, the_________each xbu(d.sm p)q6resistor is the samq) .dmu6 p(bxse.

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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 zb)md(yck2,2 b ql8 vfthe filament to become white hot, while the larger wires connected to the lightbulb8y2)lzf(k 2 vmbd,cq b 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 with1 0s0 /sebyjof LEDs. LED is the acronym for which oneboj0 ey/1fss 0 of the 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 resil*b/( :ix kpdyz mcg0g:g58hjstor has length L and cross-sectional 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 ratio of the new resisxyb8g / kgip(gc*05mhzl: jd:tivity 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 , tyep6d 6olxi;yqe/ul.- r, yare made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistan x/pqr yd l-oe,6y eiltu6;,y.ce

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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 b 2js-xr7zt6 ydut has twice the diameter and half the length of wire X. If ws j6zyt7-xd 2rire 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 and radius r. This piece o z0jg-hi.biaera3 0l.cl 5j2 nf material is then drawn so that it is a cylinder with new lej0ih l3-0celnzb .ijra25.ga ngth 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;h tr9xo:ah- e a brighter light bulb. He decides to modify the filamentx;eha r:o-t9 h. How should the filament 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 cylindrical resistors are made of the same material. The lengteapxu k( g6;0/r):bjc kei3v rfbbt8 5h and radius of eachjbra80 5 6c kx pfti;br/)3(e:bkugev 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, eac(sc;q(b espcx d(f;smdb 98o2 h of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel toq2(8bmp c csdde 9o((sfb;x;s 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 accompanr gfl)vy 8mctb+6h5+hying circuit diagram has internal resistance 10.0 kW and the ammeter has inter6c f8rmyglh)++h5tv bnal resistance 25.0 ohm. 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 shpv)fa+ d82hpgown to the right. The three bulbs 1, 2, and 3 - represented as resi2 +v ph)afgdp8stors 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 electu;ch7q 4jfk, erical circuit at the right. If the current in all three resistors is equal, which of the following c4jh,e fqk7;u 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 at4lm 7v/x2c6 wutq5hf v/vu n1j right represents a simple electric circuit composed of 5 identical light bulbs and 2 fl/2 q5 fnwjxuh1v 7/v46ctvumlashlight 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 statem9cm1m mqd( 6a9ix+zz rents is NOT true concerning the simple circuit showmir6(+zx z1mmc da99qn where 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 lqd: ()/gbe upX andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bul le:qp/g(du )bbs 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 pass through the identified resisto: wk wm8s5kc0c9/7ps m3cyrw hr in 5 seconds once the circuit was closedch3ykmksr :wm97ccsp w/80 5w?


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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 circuit have qqohww0z0 (n :the same resistance, which wouldwo q hnwz(0:0q 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 diagg/3ojdz r+bc vjp-fx4 a 3j;j9ram, the current through the 6.0 Ω resistor is 1.0 A. What is the pg-3 pjb; 3jjvxcrdja/z +94of ower 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 m9g xyb 55ngt8 8t jf:gik,(ygto a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and8 5ij:5g kg tx mty9gg,8yn(fb 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 resis.o05w ct1ksvao fyl )1tors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and o 01olst. a fvywck51)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 watts and 120 volts. fj 2eg(u, ngj)v/g iy5What is the maximum value of the current fgy/ ju n,ei)g gj5v(2under 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 de(wbd6 l*qef(z signed to operate at 120 vld (q6feb( wz*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 resi*kx-ugqee 9 jnl)3t*. 5ix,pq3ntq lnstor that is dissipating 36 watts of pot9xn*.e,nlqigqq5 3xutp* 3)eljk- nwer?

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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 xjy/rw/ elve4a7kd* ht 127xopress clothes is marked "120 volt, 600 watt.” In norm v4yx1e dox/h77t w*r2akje/lal 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 be prodt/gbcdz1a,) w rs53ld1ws.ppw6vb gz954zv fuced by a circuit containing only three identical z vdb)65g .dba5gpr lzz s/f3w,149 swwt p1vc6Ω 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 thrq*b2g9nb e.fe ee 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced uegeq*.fbbn 92sing 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 toget i5*gv b9w2lnther in different configi v5b*w 2g9nlturations. If all three 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 power P u-9hq(i y 2o7/jehb yois dissipated in the circuit. How much total power isih ub2y qy(7/j-o9eho 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 5ihui0dybun,st j(aw: /zy e2 0qe3-hand R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the 5ah( h i izt0:0u 3qby/w sdj2u,e-ynefollowing 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 12Ω when operanfmau b2a z+1 +i3f orba5)3uc/ytztz-+.nmiting at 120 volts. b)o3mzu+ y5/ia.n n+rcim -zat2 zt ff1u3 +abWhat is the minimum amount of 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 flows through a 4 ohm resistor that is dissipating /x+ *p3 5wwnso x*oo r vhn0dhb4)ar d66xapz-36 watts of powex-* d on4/635 )vz6nxxar0ohswp*rdpw ob+ har?

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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 draw ou4-z, vy:zcss 13 amperes of current when connected to 120 volts. I-:4o vuzsyc z,f 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 t kdi:og9 flgkg/0,f gx 52d-tro keep a 100W lightbulb lit continuously d rff2,9kl gtxgdk/i:- 0ogg5for 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 4.00 A through a lightbulb results in a power of 24l5clo kf ,;3nw.0 W associated with the bulb. Which one of the following choices best repreco3lfknw ;5,lsents 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 cblp/ru6m5 q(ug- 2bf six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single ci2bm/q(cr -6u5pugb lfrcuit protected 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 connected to four resistors to form a simple cir: er +,fqnf7yus2ed x/(ffc0gcuit as shown to the cn 0:(xd yueff,72frg q f/es+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 batte p y.yzj-(5v-ql h42ygjcz)tjry is connected to four resistors to form a simple circuit as shown to the ri .zt-hvqyyjcj gz (p 4l25j)y-ght.
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 ild2 i60rdo 1pldeal ammeter, a switch and three resistors are conndd2l op r06li1ected as 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 3vel 3l fw +pm-l)lz5vpv +.tgand three resistors are connected as shown. With the switch open as shown in the diagram the ammeter3we z vlpl-mft+v .)l+l3v5pg 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 id50;5aqbvo0idb 7xo d2z* yt-tjo6 m jceal ammeter, a switch and three resistors are connected as shown. With the switch open as shown6i052t jxc-tmbdd7;zyj bo*vq05 oo a 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 righlaqm5: xiv/ uz8 l.6qzl3j3hdt, what is the equivalent resistance? Assume that all wires are ideal, the b/3:.zu6 3 i vzlqjlqa8l xm5dhattery 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 thevrvj f bh r4),6;v *dnhj, czt3ag8+ro circuit shown to the right with resistanceztjg3b,+hv,rr8od4 cf6v ;* ravhj )ns $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 a vfk6m93 pje g3itk42zj2 .gbm combination series and parallel circuit to ae.gtjbj4g32kfkm6 z ivm3p 92 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 coy 9wa8w4jm pm8nnected in a combination series and parallel circuit to a voly 4mwp9jma 8w8tage 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 identicabblh+kw*q obzh- f1 u g24xg:qf41 t.kl. Which bulb will bqbg qb:ut1 12 4k-l*x fbo.hf4hzwk+ge 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( jm xtddbri(5 n/7ef2pw)*dl ammeter, a switch and three resistors are connected as shown. With thrlf( j 2 tedi75dx(/)*dnmp bwe 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 ammeteh-is gdyu: e 93cvt.w2xb6 fi3r, a switch and three resistors are connected as show-ics btu9gy dv 6:xef33.w2hin. 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 thdmc)4g p cytc,6a o68bree resistors are connected as shown. With the switch open as shown in the diagram the ammeter readstac46, c6p 8mcbod)yg 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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