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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 metall(j7ctdhoe o+ x7jf u31g3bp;17oo jn 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 fifpjh7c3j1 71d(j 7t3 beu og+onoo;x leld 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 connectevz7uvj0pn k1kf2-u q5 d in parallel, the_________each resistor is the sam2 p10 uuvkn7j-k vqfz5e.

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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 fil 8pwtb5ljm w.fac2,5qament wire of a lightbulb causes the filament to become white q58 wmfj2ltp,wc5 ba.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 housg(pa0al -fta7 c; btg9ehold lights are being replaced with LEDs. LED is the acronym for which one of the fol9 ftlag-apa( ;gt7b0clowing 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 resk;b,3/hy qhd;9 hfm ckistor 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 ; 3cqk,ky h;hmfdb/9hresistivity 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 mad9 zzr28mugeq ;e of the same material. Wire II has twice the diameter and twice the lengteum9qg r2 zz8;h 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 material but hast1 v 7qaa: /4)btdmson twice the diameter and half the lengo17amn:dtb4vt) q/sa th of wire X. If wire X has a resistance 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 L and radius r. Thii)f6sto-u 0 bw,o 2fcqs piece of material is then drawn so that it is a cylinder with new length 2L. What -o 0tocf iwus2,)q6 fbhappens 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 Thoma66y -;mkh jpoup; n0pts Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified injn pu toy0;;pk mh6p-6 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 cylindr 8+-;pgtk*mk ;uvr akiical resistors are made of the same material. The length and radius of each resisk m;uvtk+a*8p;i-gr 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, eachtb2m,hb 1 rz3a of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combinatizh arbt1,32 bmon 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 internal resistancd6m3zociz8s5 rthvg : . u2wxr/m4x:se 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rear st 4hm 6.zcr:zsg2iv/xouw8xmd : 35ding 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, 2, a+5yj4m0 ib,(vz ut9af,xiqv fnavt4(i 9f,iuqbf5 yjz 0m,+xvd 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 simple electrical circuit at the right.b0b53u ;opy 4o; fhwbf If the current in all three resistors is equal, which of the followio;ybf4pwb f;530o uhbng 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 rb6q3s og-o4ff epresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlig34fq-b so6 fgoht 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 statusl (qpz,j4ag j2lqq.:v 1i j1ements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equalji .:jq v (p j1ua2ls41lgqz,q 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 connecte ;w-p02fy2ffjsu,gtz ijj)s 5 d in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Ijj-f g2wf 0; 5,t)ssyi2zfpjuf 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 throu z-/p7atpogi;gh the identified resistor in 5 seconds once the circuizgt ;7p/-poia t 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 simple circuit 2 vj1(a vmqh;3nlpq( yhave the same resistance, which would dv 1y;qa(hn(3 vj2mlqpissipate 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 accompah4p t x.;2jzarnying circuit diagram, the current through the 6.0 Ω resistohtr. axz42j p;r 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 connect aocv:,de*o ;ved in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 , oo*deav :cv;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 R7) )thhagvirf/vt62n1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. W g)i fhtr6h7v2n)/vtahat 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 and 120 volts. What is the ma:pz*xrur ydp* /2g 02.ikebibximum value of the current x r2ubpep.i*:bg0y *kzi rd/2under 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 designed to operat d5a(e5o27 pyt+ljj oee at 120 volts?2yteja+do e j(7po l55

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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 currentv8i fbv9ecid 8et(y;, flows through a 4 ohm resistor that is dissipating 36 watts of p, bif e9(idyvcv8t;8 eower?

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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 w+/wep;8z 5dyyg7*ock2 jc d-a yzo0znatt.” In normal use, ce*7 ;z 0o2-ogjkwapy8n 5zy+ddcz /ythe 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 resistanc- pc1mogej1 b.es could NOT be produced by a circuit containing on.p be-1j 1cmogly 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 gw;7nx4/ pwawequivalent resistances CANNOT be produced usinw/;gwa4pw7 x ng 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 diffgbdqvso v ;:8s*u8ik7erent configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced?oksi;q7 v :bgsvu8d8*

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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 power l olzrs/h6nhb1k :-r6P 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? Assume the internal resistance 61zol6-/r ksb: n hhrlof 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, amrk.j5 me(u(xpj z26cre connected in parallel, the z 2(kc5j6 urpmjmx.e (equivalent resistance of the combination is 5Ω . Which 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 resistance of 12Ω wh;ktgq)s c:a4 ven operating tq)csk:ag 4 ;vat 120 volts. 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 througha-kl)e pv6(mf.j p1mg a 4 ohm resistor that is dissipating 36 watts6(jk-.) m1a glvefm pp 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 amp ivpn8 le;y2+seres of current when connected to 120 voltssnel2p;8+yi v . If 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 wouqek )r-y7 phn*bx, 3hpld it cost to keep a 100W lightbulb lit continuously f7*ynr3-q h,kx p beh)por 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 4.00 A through a lightbulb results in anqcg5:y m h 0)co)kkp0 power of 24.0 W associated with the bulb. Which onk0:p0hck y g5o))nqmce 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 6qbs13ovbh + )e:qy(uluzs7ct6 dt 4ua family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are tbo6t3s(+1 )qlezh cvu u:6b q74syudplugged 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 circuitdnln2g5fue 3w z,kzud;)/9a l as shown to the righw9;2 u,g/du 35 zdnl)e zfnkalt.
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 simple74n cy wm1p7yh circuit as shown to the rin m 7hyc4wy7p1ght.
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 swit 4opm+l8 emwt 78ujw.e *kmfg9ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 *u+ptfgmw.le4 9 mk7wmo8 8jeamperes.
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 argj (x*b ct86l1e3tky le connected as shown. Wi*6jgyclt1 (t8klb 3 exth 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 sg 5*7qmtuhzl.witch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.. mz*uth5 7qgl0 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 2zafeg)ao* llo- 7 :; ra3kvubresistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical re eoa2v7 o) ka;lgul- 3arf:z*bsistance 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 rigeih, 4acsb7./kxq t0m ht with resistanxms b70 / citea.qh,4kces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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)5tbi /2 pxlk.d: baqy a combination ad)pq t5k2.l b/xb:iyseries 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 ideko* +u 0k+okpn qvt+s.l;c8 fxntical resistors connected in a combination series and parallel circuit to a voltage source uso;o+ xvck0l8n*qkpk ++ ft..
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,ek nr 3muc,m6,x :rtah bulb will, u,m,6c axtnr k:erm3 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 r2,gjq/sh0big:nz 1bo esistors are connected as shown. With hgz2 :i nb/obj ,0q1sgthe switch open 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: in:pqv7 vxw *rc4m.u ideal ammeter, a switch and three resistors are connected as shown. With the x:wv p*inrm4cu7q :. vswitch 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 ammeter, a switch and three resistors are 8 x ai59l(q;3x*m7meevyjanz:e1clk connected as sh1kc ij v:(x8l5qlm3 e7 amz*eyen9x;a own. 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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