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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 current8qeo 07jpix se:.z9q n exists in the 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 fieeoj p0 e .nz9sqx:i8q7ld 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 fd*19j*+uexp- ps tdgeciu-xd0 p7l0 in parallel, the_________each resistor ip euedp7d cxl0d0g xp-j*9if+ tu-*s 1s 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 lightbulb causes tdsv4r.dvi :v )he filamen.4rdvv )vi:sdt to become white 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 househaz9g)mtp u*-t old lights are being replaced with LEDs. LED is the acronym for whztagt*)u mp 9-ich one 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 resistor has length L and omd(yv yb92vhlmru (+p8a84i 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 resistivity to the old resistivity of the cylindrical resi y8hvo8(b4p(9 vm y+ u2mdrilastor?

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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 wiry6yaz14 x n:t);bc cwpe II are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistanc1):ntyb zwxpcac; 64y e 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 a0s vukbwklkeqleu 87gp ;5)/:nd half the length of wire X. If wire X has a resistance of R then wire Y would hl5 0)el; pb kwu7kug k/8qe:svave 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. Thdi :r7/4ftrnt k 7vb7ais piece of material is then drawn7af:kibd 7 rtv4/ rt7n 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 li;bwxg p w:8x: )xrp ( wwzxy*ma7ldj4:ght bulb. He decides to modify the filamd ;w:lxmrzjw): x (g8xwpxp7 yab4*:went. 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 cylindr2.1 qptf7xf y3s wnyupse(5.kical resistors are made of the same material. The length and radius of each resistp35y1fts.f n(p2u . w7eskxy qor 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, +8(zomw 2dkbjpq(v r- xt.:rreach 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 to a third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance ofrm-2b:((wzvjk8 x p tqr .r+od 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 accomp),a .(husbas nanying circuit 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 readingb)(,san sua.h 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 comvbxh23z/dp1 fs e/4j ppound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resdjbpp4z xe1f/ / v2h3sistors 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 electricqca97+h lr, hvx z+5ssal circuit at the right. If the current in all three resistors is equal, which of the following statementsc hrsh alzvxs+ 5q97+, 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 com3( lpya:x .if.g va3ccoj0a p;posed of 5 identical light b3cvap f:jax; l3ag0(o.i.c pyulbs and 2 flashlight 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 bunfvul p wz4-6( np33is NOT true concerning the simple circuit shown where resistors R1, R2 and R4l3u-6pv3upz(n w bfn3 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. Bulb X is brij4xu7 mp1.wd iva41a aghter than bulb Y. Assume all circuit elements are ideal. If bulbspa.md i414u1vaw xa 7j 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 idendpmgufi)0 2tfz 79u;/mf x )yvtified resistor in 5 seconds once the ci ffm)9t fg02/x;dvpy)ui7u mz rcuit 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 simg1 g zwbd8u *f7 -gpfb;xz/kw;ple circuit have the same resistance, which would dissipfd b/;-kb7 1*zf8pg;wu ggxw zate 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 the0uv.m bu/w 52 ldrped3 6.0 Ω resistor is 1.0 A. What is the power supply voltuu p25 .3edbdl0vwr /mage 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 +.. unfmfz or5are connected 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 W of power. What is the vo r.fmn+.ofzu5 ltage 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 pbx ; 0;efn;m3/d hypxoarallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currentxny ;p/m ex0bo;f 3;hd 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 120 44-wc xv-.e y3)scxdwojb2yz 0 watts and 120 volts. What is the maximum value of the current under these cocwoc3 -b4y4)evx-wyd jx2 s.z nditions?

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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 w* 6kzh4vf-qaw69 cjv at 120 vv-w*qv h4z 6 fkw6acj9olts?

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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 resistor that is disi ) /9auvc ucm k25,hxgdvbo3:sipating 36 watts ofh bk/)c m95ao,iuv xd2cug3 v: 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 "120 volt, 600 jrgq) n-/jb 3m0oq*var(ir3x watt.” In normal use, the current ijx rj ri )q0(rg3q*vmn3/ba-on 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 produced by a s541em .gdxhlcircuit containing5xgd ls4m.he1 only 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 1.0w1r24umf 2 kyp Ω resistors. Which of the following equivalent resistances CANNOT be produced usin4wmp 2uf2k1yrg 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 opm2rvu-1em(*2 r idgy :1 ewigf different values can be connected together in different configurations. If all thrv:rpeu2em gmr yi* 12w(gd1i-ee 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 w8c j y6k.um8gresistor 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? m86cg uywkj .8Assume 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, tx :-khz,vauq, 8p9d zhaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistance :d,tq,xha -zuz p98kvs 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 aruz * l0s wj-hn3(ifs(dh5. ck resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water h s. nhuw*k(sz f05rdic- (l3jfrom $15^{\circ}C$ 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 thamu l f77oo9-gcomeljhj9/ t7+zx6ae5t is dissipating 36 watts of power?juo/ o9 z97j7ltlgh6m7 fx-ce a 5em+o

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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 current when connectedph). 0mz+nlu z to 120 volts. If+hznu0)m .zlp 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 woull lzyl 1dqs0uu0(*0cp d it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of0z sq lp(*0uy dluc10l $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 lig1r3mqze m, p66chvzm 9x8q d,ihtbulb results in a power of 24.0 W associated with the bulb. Which one ox q 9 zm,6m3mpi86rvq,z edh1cf 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 com: q31wnbw 9tw5 x j9zq 1lt:pw;)05qolzfjifaputer rated at 500 watts in a 120 V circuit. If allwzj5ztlp lijn 10:q x51b3aqwo w)9qw tff:;9 computers are plugged into a single circuit 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 circuionsav3r9hr 41t as shown to soa v3nr9h41r 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 foudvr *8o96y ygoscez-t:39r gor resistors to form a simple circuit as shown to the rye6-9r gcos9 *otoy gr8:3z dvight.
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 a,pdoeje, 1h5znd three resistors are connected as shown. With the switch open as shown in the diagram the 1jdoz 5ph,e e,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 ide9 u9cc b(bz .e4 18zr:lafjiemal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 1e9 lcmcz8ij bab. 9z(r 4:fue2.0 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 r 9d*9osgp,ao-t 4i x(pyyz /lwk+p o/kesistors are connected as shown. With the switch open aoyi-/ kg*osl op 4dwy(+xz a/,9t9kpps 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, what iv g)r o0v3/ytu ljb/(is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisg l/byrvji v0(ot/ 3)utors 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 y 0w. ya/yjn6n with resistances0jwy. nyna y/6 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connelk q );nnl zph9a(s+)mcted in a combination series a;pnl(+q a n szh))m9lknd 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 c93b-x il+a gzofj)-0ydhndf/, ma(sresistors connected in a combination series and parallel circuiada ( xfj30il,+)go 9s-yfdncz /b h-mt 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 identical. Wh98v-;vudw ldxich bulb will be th;8 vxv-dl9duw e 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 and0qi*f3;d ofhj three resistors are connected as shown. With the switch open as shown in the diagram theio0*3jqhf; df 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, v 2dl ia(r*v+ya switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter +d( lyv *i2avrreads 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, aoh7idtu b6 /,is oojhy:;a/z4n ideal ammeter, a switch and three resistors are connected as7aho s;dz/y,4hj t/oi bi:6uo 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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