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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 i-so ,4xt2i vimn 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 field through the interior of the resis- vsio ,4tim2xtor?


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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 resi,yu4r +lnwy 2ostors are connected in parallel, the_________each resistor io+ ywu,24ry lns 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 thinn(37 2i*pxdiv f, gsbymy o9ozk-5t o0 filament wire of a lightbulb causes the filament to become white hot, while the larger wires connectvp5yfmn(sx k0 ,*9y3t z ogo2oi-d7ibed 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.e 61t4e 1ntpge LED is the acronym for whic1ge p4t6etne1h 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 lengki3j(c8 k/ayuhxwh *; dr*bs3 th L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so th cbk* jurs; wdy/kh8x*i 3a(3hat the new length is 1/2 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. W chz422em* 7y0u hs;j dtnquc6ire II has twice the diameter and twice the length of I. Iy0 m2cque 2njudhshz c *;74t6f 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 diamet d2hrcjn n +.)tb)/laber and half the length of wire X. If wire X has a resistance of R then wire Y would have ) .bjha/d t)+l bnn2rca 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 resistorn c81 d.7 /e;aes;wydwb1t4m iur tia0 has length L and radius r. This piece of material isw;ewr u nma1asi4t.d1c/ y;ti0e78b d then drawn 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 bulb. He decid:8/olqo d1 lial0 tt2uziv3;des to modify the filament. How should the filament of a lightbulb be modified in1vlud ol 03i 82;dt/oaq:zi tl 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 s95r t3m ma8uqs4 3v7z7ekhyxresistors are made of the same material. The length and radiu49 kza 7q83s5emtxyrm73sh vus of 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 resista gbhc/ .+ ,eyracare+;nce 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 ser .agy+cc h;e/+rb,e raies 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 diagrap4c78h 6vj.d89mde, og).seysemif rm has internal resistance 10.0 kW and the8e chi4 opd.7jfdms,y.v6eesr8gm 9 ) ammeter has internal 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 compoundht egzm,821bk circuit shown to the right. The three bulbs 1, 2, and 3 - represented as h82 tkb1gmz e,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 at the right. If/eq3hz *aj-iz y6 z -;d8vbuf-sze2xe the current in all three resistors is equal, which of the following statements mu-fhq2-/*usi jz-vyzd3b xez;ee za68 st 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 com)ly nd)+la ld uce99ywc);t+kposed of 5 identicalladdn) )k9l;ec9 +c )tu y+ylw light bulbs 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 sld+kctz r9sv y+jc13vah625 wtatements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanck+cclwtv 13a9v 6jdr+ 5y2zh ses?


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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 and 6lqk6ymw*v/ uY 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 rewmlukv6 6 y/q*presents 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 id dlmdbeo1kgc p,6 ,(-m. xt7rrentified resistor in 5 seconds once the circuit was c d,.-m7rm g6op, 1tr(exbkdlclosed?


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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 resistorscw f7c q+jvw6n+1 p6 nh0pek*f in the following simple circuit have the same resistance, which would dissipate the grepv nh 1fk660*f+cwjw7+qcpne atest 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 bxf -n*gf(i4e Ω resistor is 1.0 A. What is the power supply voltag(*gnf4fexbi- e 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 yk6i g* c 6dv3s.bg2kpb*7bthR3 are connected in series to a battery. Suppose R1 carries a current of 3gkgb7b6ypbi6d*sc. *thk 2v 2.0 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 9(r vr1w qxy*lresistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissi wr9*1lqvr xy(pates 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 rate8 dgny/*3 c3k douv;jpd 1200 watts and 120 volts. What is the maximum value of the current under these conditnk p *3o8y3 ;dguvdj/cions?

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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 at 1x:mcsuwap i6*n s.x3 en1+ gp/20 volt:g+ *w/ ixp1nneas mp3csx6 u.s?

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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 flowsr4;azyq1agj( j4u o( n through a 4 ohm resistor that is dissipating 36 wa4qgz jy( unr(j4oa 1a;tts of 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 qw9l4wj :f mo7g/cu3 m(,j pawpress clothes is marked "120 volt, 600 watt.” In normal use, the curreafj9uc j(pmlq /7o4,3wgw: wmnt 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 produced by a circpxxd-5b kuuy v/-.iv/9 lq uc.7)xpc duit containing only )c5vubd/c .7d x q p-vy9lxuuk x.pi-/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 1.0 Ω resisj5zrl) p/4o aq mijr3.tors. Which of the following equivalent resistances CANNOT be przr 3op q5ijram.j) /l4oduced 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 :)g 9dvfo cn08l /ltjrvalues can be connected together in different configurations. If all threfldlv8t) cgj/ o:9 n0re 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 po4 axa*egz9q k;wm on(* xd+ 5xrptgd7:wer P is dissipat7+xa9 og*e5xzd4kp( *mxt;gdaq nw: r ed in the circuit. 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, -l,zckmc h1hgq-ag*i5 x/b53 wq5zs pare connected in parallel, the equivalent resistance of the combination is 5Ω . Whichgz, qaqhx5g3b -zhs 51p*kwcmil c-/5 of the following 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 reshn f;w+m9 tc w21crk8kistance of 12Ω when operating at 120 volts. What is the minimw;kk8+n2mfr 1 9wccthum 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 dpv3ahm.bk ammt l7h:p- f3 :,eissipating 36 wa:h. am valep 3t,7mm:p3f-k hbtts 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 draws 13 amperesh1h:. xvwqq;6n lx8xu of current when connected to 120 volts. If the price of electr;v 8q uw1xl xq.hn6h:xicity 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 cosh ,4v2e8yw7w7ik,rb b xlkz1 kt to keep a 100W lightbulb lit continuously for 1, 4hw77 1vez lwykxbkrk2b,8i 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 ligh+svf/rp.b;118 vlsh( szcjdk tbulb results in a power of 24.0 W associated hs; .c(+szf 1vj1sr/vbld8p kwith 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 of a family of six owns aqj7,;x/ moa mf computer rated at 500 watts in a 120 V circuit. If all computers are plugged mfq,j/ma o;7 xinto 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 circki)y2w- u 85ikog5p d-l,i ag,6bybwiuit asd5igg-i)kl-,bkp,a io2 wyu85ywbi6 shown 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 r/s0mju g3p*,v j;ynqimple circuit as shown to the right jyu0gr;q /*n, pjsmv3.
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 sw1,n7o8v; *zqaz dt5t8 cuw rovitch and three resistors are connected as shown. With the switch open as shwd,8co n*z z15v8uoq; a7trvtown 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 three resistors ar xt5 py3pp2kcylmk:f,-w :km3e connected as shown. With the switch open as shown in the diagram the ammeter readyt2:5mm: 3cwkpfp lp-k k,xy3s 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 respl6 ,pu,6kdoeistors are connected as shown. With the switch open as shown in tep6, po ku,6dlhe 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 is the equivalent resista ncpu l4us6t;7nce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have ilu;76pnc4tus dentical 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 resistancfn -;9t g tfrqo(6y.gbe of the circuit shown to the right with resisn9 gqtg6 o f(t.;b-frytances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 b f,hwxgsx9sut+t3k. yh .r 8h8elow shows five identical resistors connected in a combination series and parallel circuirxhg.xus8f,8wkhth. +y 39 tst 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 resistors conge0hf krv )xn3;g;sl5nected in a combination series and parallel circuit to a voltage sour xf;e;v0) gng35hkr lsce.
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. Whic(f(nqpv 8g +rgh bulb wilfg8 ( gq(np+rvl be 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 - znoms6 g rf/s-d-jt079 jov(zol rf(are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampevj-s0 rso r6folnf 7(z-/m o jdgtz9(-res.
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 three resistors are c 9 cwzl4bp*8 c1qnsqz-onnected qzb89 p* zc -l4wcq1snas shown. 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 ammeterp/2g d) ab, bicudr:v., a switch and three resistors are connected as shown. With the switch open a, ib) b2arup/d:dgc.vs 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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