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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 resistoocx d xy*41y+xfn lz74r 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 interi xox4*f ly+1xz4ndy 7cor 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 paralleig3hs / dmzc+-l, the_________each resistor is the same.hds - ci+3/gmz

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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 thind*a at4yvvq; f kq8i+5wt0 tc6e+ vdq( filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happq0 + 5v8*qwvqt ai+4tedc;dafkyt (6vens 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 hj((+q;sfmb e:/ a9hqa ww*reare being replaced with LEDs. LED is the acronym for which one of the following choices?arabe(f:(mjwh ; qh/w+e9s*q

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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 length4a o+i lrbjlx7bd48t.gk). dm 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 resistivity to the old resistivityl7bm tdo. +i4 gx4k).b8 jrlad 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 5zv:p+ .upo1rk,1gjvh y x;em the same material. Wire II has twice the diameter and twice the lengt:myo z.x1pkjh, +p1vurv;e g 5h 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 mathj oy1jw h*v;cqal(m --/,hqc erial but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance w ,1c( qajmcl-y;q *h-/hvjho 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 of materia;1 h/tld1qjfbta i o59l is then drawt1tj odbqa;h /19f5 iln 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 jep79fk+vrs -i9ge z;es to modify the filament. How should the filament of a lightbulb be modifir9pzie7j9esfk g-v +;ed 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 pa( fys+kn f qp9f*k:4of the same material. The length and radius of each resisk*nys+ffa:4f p p 9q(ktor 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, rl)e; x-bfmul 6 5q,ql.fzc p9are connected to a battery in the following way: “Two resistors are connected in series. This combinatimbf5;6.xce9 ,u pqr)l ql- lfzon 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 circuit diagram has inter ;u,,k*acq wmlnal resistance 10.0 kW and the ammeteck*au, ,;q lwmr 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 compound circud:ml4v,p7 g+y. do-cxa;yjqfit shown to the right. The three bulbs 1, 2, an mxydd fqc 4+op:jy;-7la, v.gd 3 - represented 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 simpleb4fi vc 543;qrcoqw k) electrical circuit at the right. If the current in all three resistors is equal, which ofv4q4;o q)ck3bircw5 f 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 si)xnc :n4t3* msjk4iq imple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbsij 3: qxnc4*ts)n mki4)
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 statemelv by;l 2s)p8vnts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancesl;28v)s bp vyl?


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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 inzdb:oy d/r2 -bxr2so1 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 representsb-21yxo:rr z2do d/bs 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 ep/4n albm(;voh 4sjg00ju8ipass through the identified resistor in 5 sec (0b8o ge/;ji 4smahjp0 n4uvlonds 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 the rxw)d1j4s a vnyihp;1-esistors in the following simple circuit have the same resistance, which would dissipate th sdhy wj1vx4inp1);- ae 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 thf0 4z,v a0gdk:hb bynoa 0va64rough the 6.0 Ω resistor is 1.0 A. What is the power supply voltage nf:6v b,404badvykaoazg00h 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 iuzuz;1q((s rp n series to a battery. Suppose R1 carries a currensz (up (q;1ruzt of 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 resistors R1,)j g4bybvy 59il ux+p3 R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cl4yby 5)vb px3+jgu 9iurrent 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 s8ck5rb xg4kesd;p8; volts. What is the maximum value of the current unc4d;rkgs;8pb5 x s8ek der 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 wvj l/a*+ 8iygiatt lightbulb designed to operate at 120 voli/lj v+ 8ya*gits?

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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 t4hm4kjkhg;2 s/ 9vimahrough a 4 ohm resistor that is dissipating 36 wattkimhjsk a g/m2 v4;h94s 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 uvki k)4 o3avi1sed to press clothes is marked "120 volt, 600 watt.” In normal use, the current kv ioai1v)k4 3in 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 rcxlw w) gf91n +pjy+oo ,:+hlNOT be produced by a circuit containing only three identical 6Ω rp+9g oy w):wl+xhnjf orl,c+1esistors?

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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 oalimvrxg+- )+1 g1s1dd nlb0wf the following equivalent resistances CANNOT be produced using a+ -+n1dsw1 ldlm0arbgv 1gi)xll 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 ofj muqrne( b(o5cd .69n different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance j65r( od9(n e.mqubnc 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 bsvn 8k;kq4pyyh88ps63b 8vcs attery, 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? 388h v8yk;spbs6py8 qnsv 4ckAssume 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 resistahc1 6bu7aom-xud 0zy7mvk-8wnce R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about 7mwd a6ybx 8muz7oh 1u v-c0k-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 resiskylk7nx l,* xkj d0s-2tance of 12Ω when operating at 120 vy720kxsld ,*kx kjnl-olts. What 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 currm,k;w xi)*n-a7 hifyoent flows through a 4 ohm resistor that is dissipating 36 watt * y;in fihkwomxa)7,-s 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 amperes of curf wj ;o-gxtg,p,*d .utw6,g itrent when connected to 120 volts. If the price gux-6 t owt,gf;jtiw*g p. d,,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 i/q4igu s/p(u u-srxwn;,) uswould it cost to keep a 100W lightbulb lit continuously urpx n(gu ;-s)suwi/, s4iuq/for 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 4.0mi6o-u k7m9 nq0 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resni-ko7mu m6q9 istance 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 compuj a6nq)jm 6jzs+hq9qyn(bmy/ s -72v lter 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 maxqm 6mvnjnab hz y2j()qsj q6/+y7-ls9imum 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 connl1 2ii vwwvo81ected to four resistors to form a simple circuit as shown to the rig11 iww8ol vv2iht.
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 resi/b2+ 4ub af:+sta4ksa rx6y ikstors to form a simple circuit asts :a+syk/4 ib x+rf62kaua4b shown 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, ar,xj7* jea/n n switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ar/ nxje,*7 najmperes.
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 are con( 2wid-plxnu4:fb+:gl umctu t56 e1anected asx:b1ui cln6fg-(:ulawm tp+e2t 45 ud 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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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 resistgy ra*rfy43.j ors are connected as shown. With the switch open as shown in the diagr ajy3.rr yf*4gam 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 isy zol)a9hvf 94 fno(/)r/4*a u qzlkpm the equivalent resistance? Assume that ar4/pfmuqz/*l )avko9zf l( an )y4 9ohll wires are ideal, the battery 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 the ck -cknuzh11zfvyeq /;r07e c 29u w;mn15hhh wircuit shown to the right with resistance7w1qhuhfcennk51ychez z/u9;h wm; -1vk20 r s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combi (,ybwdw8(1mi j gh2i9jjih9 xnation series and parb1jhjij 9 i m,8w9g(i y2xw(dhallel 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 resistorzhmxk 7ne)p2: pyna59s connected in a combination series and parallel circuit to a pznaem9 7px)5: n ykh2voltage 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.*gw8y3j+lrjr jf(fff)5)jvf Which bulb will be the bjyf +r g)r*vjjf 5w lf(38f)fjrightest?


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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 are a18 gl,ps,7rxkz dj.a connected as shown. With the switch open as shown in thex,d17rasz ljkpg.a, 8 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 dj;2d7rb g* psideal ammeter, a switch and three resistors are connected jd;*p2gbrd 7sas 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,7 9do+f /s5fgd)pmf c4nul0fj an ideal ammeter, a switch and three resistors are connected asmnd fjl9g5 4ucfd07p s+o /ff) 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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    总分:50分 及格:30分 时间:不限时
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