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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 cu6 87vlm* rq0x4oqbq k;yoyx2trrent 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 andv q 8x*y2;y rk 7qqtlxm6o0ob4 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 parkl8 ym ix-tv,0v5br mq+zc6 ;dallel, the_________each resistor is the samc8-i0dzym; v +rvlxt6m5, bkqe.

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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 thjrxss:2a:qvj+eddao b 2 a;3 2) j-xowin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens beca)s2 asjawj2bx-o:dqjr 2e +:xd a;3ovuse

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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 ) f7qo8 eipnsn-v.e t56m z-blreplaced with LEDs. LED is the acronym vt8fzl- )i5.qne67 s-bomnpe for 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 resibofm3gvo p8xc-u8,-i tn jzd-7de89estor 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 the old resistivity of th87 g zxdo-e o8ufieb 8d-j,9cp n-vtm3e 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. Wir 3f4;- dkvcxfd1ka c06 ez9q vzcwi+q/e II has twice the diameter and twice the length of9f z/ d0-d+k 4i;c1ckc6vv ewfzaq3qx 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 material but has twice the dial w9l g,bhurrj.f kq3+ ;g,3cimeter and half the length of wire X. If wire X has a resistance of R;h,ug i,3lgb.fkw3rq9j l c+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 ha .lyxl 1ni+jb7s length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of1yb+ji7xn. ll 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 lpjis2 b)1gq + wb5ke:bulb. He decides to modify the filament. How should the filamenikwpg+sbq)5 lbe 2: 1jt 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 cylindricat 3 4sc+mk 3n7.vl-dib;xdi+b9anc tcl resistors are made of the same material. The length and radius of em39xn tc+sb.n k btac+v73dc4id l;-iach 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 resisube,0)y- 0pus ;tjo( unp4 cigtance 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 thru0gp s-bij econ;0ytu)4 up, (ee 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 resistanc7( lsvflqq:/ bii9wv/e 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is lq7qf/v ibls(w:9 v/i 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 shown to the right. The three bul 6u1xu2arfo ) tm9bk;abs 1, 2, and 3 - represented as resistx19k2 rub)f;t6oa mauors 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 electric a0xfsnj7ylr c/5q)qt sq j ,9hz9q.q+al circuit at the right. If the current in all three resistors i qjsq+ 7xj.9 lqf)a,5 9cr ztsnqh0y/qs equal, which of 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 rig tw zi/1c)t,qwht represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells ct1iw,/ wqt)z. 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 is NOT true concernine vqf9ei+z;ze,. u81o2kc hw jg the simple circuit shown where resistors R ;+e8oi ,91qfekew.c2jhuzz v1, 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 X andY are connected in series to a battery. Bulb X is br0bkk8ka-v;4gnnv;xh)6zb h spzy 3e 9 ighter than bulb xk);z3hpnvseg4b 9k6- hz kb; va08ynY. 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 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 res5.fpts87 zn cbistor in 5 seconds once the circuit was c.z t58 f7bnspclosed?


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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 circued1lpt ; /o-exit have the same resistance, which would dissi-/txe epod1l;pate 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(-dl )y/ )qraqmrpxse p7yt+9 circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power xde(y9ql a)r/sr t +qyp7m)- psupply 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, R68ht4 ntr y enn p;dzw qf-2rjji/47f/2, and R3 are 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 voltage acrofq284 /pn/tnj rn;7 i6-zyjreh wf4dtss 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 paral2myvr8 vz r68.vrp8mxnz7f/-v vf sd;lel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in p yn8 f8rx;vfv-vmz76rvd/ 8sv.m z r2R3?

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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. What is the maximum zqfh *m;x(l wga01dwt.raa*9value of qt*hf*rma0d9a( 1zwlx.;gw a the current under 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 des9bsz3*6s4 bm9n kafomigned to operate at 120 vof9z9osa3 b*bm4km ns6lts?

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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 ishz lo ):xgcw+; dissipating 36 watts o lhxcgw+):zo; f 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, 6.qhjzi9 k :9hdzp/ h.y00 watt.” In normal use, the current in it i.y9h h:zji dzh/qpk.9s

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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 followiz x-se+up.zlw-d1gxw w +yiz,4/rd7ung resistances could NOT be produced by a circuit containil+z-1 r7x ug-ewd.wzwy 4+zx /dis p,ung 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 1.0 Ω resistors. Which of the following eju 88soiw: kx(quivalent resistances CANNOT be u8(wio8j: sxk 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 resistors of different values can be connected together in diffyovf.g*oc 6 1+x 0owoxw5p ag6erent configurations. If all three resistors are used in a circuit, how many different va p 1g0*y gx.fwvo6 5o+ax6wooclues 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 conneclnpb( 8s9 7g/ vjxjtb6ted to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit /bxpj l(gnb8vj 9 67stif 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, are con)5(qp j,gjfks nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about thpg)j,js k f5(qe 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 operajboz *sv6 *ts/ting at 120 volts. What is the minimum amount of time that it would t /b*s6v*tzsj oake 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 resisthpr0o)bh 5y.ght h5 yy)s5k6f or that is dissipating 36 watts of5 560kp.hhsoyy))hgyb tf 5r h 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 connected to 120 vol 3r3j2 cc lf) f)l.;vtijyb1f rme+fvg:g7;ogts. If the price of electricity ite7.r jc;fc ;g 23ffygv3) g1blj+mfi:)v olrs $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 ligh +xu/0son2o 4lgy59l.q zofr ltbulb lit continuously for qxrsl fu.lol+ yz/o254g09no1 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 curre4*4*t poqekvv p;0datnt of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of thpt4 k ;v4tv*oqe0dap* e 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 computerr ;z*8nziad g7 rated at 500 watts in a 120 V circuit. If all ca; 8idzzr7g n*omputers 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 resistor)6urd 4xhkuj )s to form a simple circuit dj))6uxh kur4as 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 simple cirs2ja: e4 2rusncuit as shown to the right.sns j24ea2u r:
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 and three resi6g5q+ r zea :gsk k9eqn) ivkn9kfs 9v4v1:d:kstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperear+1kveqgs:5gn)96f ki4kvnvd eq9 :k k :s z9s.
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 sw9/ va1 :xpea(kmcf q7xitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes1qam7a /(ex f9kc:x vp.
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*9 kw .igk9rjye qc+w9 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0ej +k9i 9qkrw9*gyc w. 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 resist)dxq.s1 62j9c itigrjance? Assume that all wires are ideal, the battery has no internal rejcgix it9) .q6 2dj1srsistance, 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 circuit shown to-vi;qrja u2z;4 hsw43 rc u+k(p8tugl the right with resistanck lhtq(g-c zuv;i+;sp3jur44a8w2 ures $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identic3 ) g9lsi.g8kq1gins mal resistors connected in a combination series and parallel circuit to a volgn1 k lmssgg)iq98 i3.tage 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 beec7,8y wze*mbq 55j:z6 fh hfflow shows five identical resistors connected in a combination series and parallel circuit tof,bze mej6 5 :hcfq*zwh7y58f 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 identicy8cy1g pd/0h 7xc scm2al. Which bulb will be thcgpxd72h / c8c0 sm1yye 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 are conu*u0ljc6a ut1 nected as shown. With the switch opaj 1 *u06tuulcen 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 idmr1*y7l0x9 bwt ouh:seal ammeter, a switch and three resistors are connected as sh1hu7bxml0t o* w9ry:sown. 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 idekl04bq+m- atow*f1pjaf /t8 mal ammeter, a switch and three resistors are connected as shown. With the switch open at08lfj -k bo4aat+mpw1 /mfq *s 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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