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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 exr5x.ll0olq) /8f u:tyx ri )bxists 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 field through the interlr.x /loltq)u8)ri 5 :byfxx0ior 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 ( 20os /atkbqijbd+/ hkx *d*sv2t9dmare connected in parallel, the_________each resistov *tb is2sh/atxo kdjbk9d/2m0q+ d*(r is 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 liq/ckmj4 8j5k sghtbulb causes the filament to become whi /m48qkj 5cksjte 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 household lights are being replaced with LEDs. LED is thmao96dzxl;m9 5g 7shje acronym for 7;65hmsx dgazjm9 lo9 which 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 td) ytd( vpaw7am3/)jresistor 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 resistivity to t(waj y7v/ )dmp3a t)tdhe 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. Wire II has twice thiis) (5pu nov5e diameter and twice the length of I. If I has resistance R)on(iuvi p55s, 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 hark2klj * t9.1d tlgrh1s twice the diameter and half the length of wire X. If wire X has a resist1r dt.rgl jk9kt*l12hance 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 n7o) wysntei3ms)776t+.wpzd didq* ha2m5 v L and radius r. This piece of material i3tend)dn tymhsw+o 7iw27 s*ziavq )dm 5 p7.6s 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 ligq(spyk-w +*8b;swv(l mfp lw1v/psw1 ht bulb. He decides to w(-vw18pwslvq1 ml ( ; fypsk* /spbw+modify the filament. 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 materia*)mf j6r b iog:if*4yhl. The length and radius of each resisorg4 )mi*fj:i6*b h yftor 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, are connected to a battery irrc6r c*4kib+/ sjg fwc-o8,vn the following way: “Two resistors are connected in series. This combination of two resi rwv c8+j-/koric*bf s cr,6g4stors 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 internal resistans fr: mz38agg6fwkz 29a-pg7ece 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 2e9a g:gr zpks7wf g6 8f-az3mmA. 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 shown to the right. The three bulbs 1,y(lq3u; * qrzz5m9z2dwaru( e 2, and 3 - represented*ua 9zrq uqdwe;ym2 5rzz( l3( 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 simple electrical cirfq:sst+oz00iry*8cb5eds t:/ kq: br cuit at the right. If the current in all three resistors is equal, which of the following :ikebs*c8z+yos:0 0bttr:s qrf 5/qd 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 iu0*nodsg wx zoivo5 n*c1e) 6-dentical light bulbs and 2 flashlight cells. g1ocx)*o-e0dvo* sznun 5 i6 wWhich 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 statemehitv07: v zohke1+ c t,s7te2snts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are havhst i1ok ,e:+cez77v vthts20e 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. Bulbgz xf2re* 0q,h X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in par,*zhgqe2 f rx0allel 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 coulr g o-+m .hpx;lwa3r2aombs will pass through the identified resistor in 5 se+.3;ax-l gp 2 wromahrconds 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 resistors in the )t ydv t f(x/cccy5.dcyetu m,k+ 30n6 following simple circuit have the same rvyt ( xymy+3d5.cud tn f/ccke6c t0),esistance, which would 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 diagram, the current through the 6.0 jjkl;e+.j,0k g5a: 7acbr gb v Ω resistor lgcr,:+ babjjekk 0v;g7ja5.is 1.0 A. What is the power 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 0)upi7h)0urs,df dgw connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0p700udi fus)r) ,dhgwΩ, 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, R2 andR3 are connected in p4qj92 /z (yqi4chbtzyarallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6yzqyb/q4it(2jc 4hz 9 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 an2o1m oj38bw 1oac ,rfx9s.nr fd 120 volts. What is the maximum value of the current under.s2ab 1for39 fw,8or 1xncoj m 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 resistl dpwu2)z6d3)edyf h bs-e 7ayd:(x+cance of a 60 watt lightbulb designed to operate at 120 xyfc pd7u63)se 2 b(hldye +w:d daz)-volts?

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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 floegm , hwbv h4:t do4;,4jl;tvdws through a 4 ohm resistor that is dissipating 36 watts o dgv4oh vjebm:tl4,,;; 4wdhtf 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 rd(8ze u:(jh vw;je;qmarked "120 volt, 600 watt.” In normal use, ;w erj(e8 u;jh( d:zvqthe 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);ya)k- m ba/sjd j7e8selly6 could NOT be produced by a circuit containing only three identical 6Ω resisjb6el7-la /y 8; a ksjy))desmtors?

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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 folle1bnke4f aa yn3s -t((owing equivalent resistance as13naf -ebet((kyn4s CANNOT 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 resisto2ziv 9favlr s76/k3q frs of different values can be connected together in different configurations. If all three resistors are used in a circu rsfvakfli67q/ vz932it, 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 pow)g)jg;gnyz+x.8f,ji y6 iy zler P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connectnj +g)yx.jyi zzi6,g ; g)ly8fed 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, are conz:5 l;vgr0e , hws0m aal6p8fuqyx,x)nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about lq f,uxg;a5sw0hpr) ,:vx8 z a 0y6mlethe 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 sp k+nsvz hey1q37q*3o uch that it has a resistance of 12Ω when operating at 120 volzn1ekys q 73ovq3p*h+ts. 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 current flows through uq1 b+(g-qbx:evl2z ht -i pws6t+1s ba 4 ohm resistor that is dissipating 36 wa s(tuz:sp+b-wqbixtb 1+lhq v 61g -e2tts 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 current when conn0f dw(6jk: nhfected to 120 volts. If the price of hj(: 0nfkfwd6electricity 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 lightz , zfa.z)pre2a2/6(jslsw x3+l vwtsbulb lit continuously for 1 year at a ratez2(s2a, /)+xp.z zslj6 3vrwwlatfse 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 odp7mqxyuv7*puq7 e(v6sv* 75 l kr tz/f 24.0 W associated with the bulb. Which one of the following cevd pyq*pzv75*7lr s uvt76xq/ u (m7khoices 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 computer r ,fyxjy4r5c3z ated 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 maximum number of the computers ca5fcr y3y4xjz, n 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 fi(:nggc zc;.qmq br ) wi*t;6ar-d 7blour resistors to form a simple circuit as sh dgr6* a.wb q:(c;cg-ii qbl) ;nm7ztrown 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 connectzs/ggx:ad1h*z4 5:d 9vih v imed to four resistors to form a simple circuit as shown to the righthxd1i9:sm:zid */agz4 v v5hg .
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, alp.x -r+ree/2t2d w--jyi kfvn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the frle+d/ v-ri2tpyj2w x-e.k-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 iden 0,rk 44qeh.hk)xysial ammeter, a switch and three resistors are connectedi4ne.xkry4 0s k,h)qh as 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 ideivnc39l+et+ewg r1ey.qc6 2o al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 av3etrl 9oqiy c.26+ +newgce 1mperes.
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 eq3bn;o((l thy7n we/na uivalent resistance? Assume that all wires are ideal, theb7ennyonl( /wh3 (t ;a 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 b--5fovmvc/* s vh1qiresistance of the circuit shown to the right with resistances sv-v qobvf5m* 1h-i/c$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 f9b - h osmt*gg0yqh++five identical resistors connected in a combination seh y hq-+g*bso+f9 gtm0ries and 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 identicalym*/o6is p ri o: :ua w9hdu.jc0eo-zjgb3;.u resistors connected in a combination series and pco:9oo de-ym6ihu sw.ujp;./ 3 0uzij ba gr*:arallel circuit 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 okxfbr8nd 450obzi tn(;yn;p ) f the bulbs are identical. Which bulb will be the brightesto nx 0;p8b;(n zfy4dt rkb5)in?


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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 apvns a5i9ml 4g+0 kc)dnd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r l9vci n0smk5 ag)d+4peads 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, a switch and three resi a-4(*5pqxt rf 2ewgbueuawfg:*1xx8stors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2p gu2wgt xf (u-a8r5* bqx:x*fae4ew1.0 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,zb * ,d.oxx 3wqq/cg)l7 i;oic an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readb)7w3qii;o .zcoqlx g*d/x, cs 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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