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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 ej9q cqk/j c:h -a6wko1xists 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 thr/aw jqk9oc 1qj-k :6chough 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 parallel, the__3 iqne1zdibk) *vu*t/_______each resistor 3q i i/eku*tdv *)z1nbis 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 filavtw64 osaza*s;g: kv l:jl1 .kment wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This haala: .ls6skkzo4*g;j:v1w t vppens 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 34c kw9vn .abg(ofq8ubeing replaced with LEDs. LED is the acronym for which one of thuo f9(cgwakq .84v 3bne 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 length L and crotwu 3 h2etko*.ss-sectional area A. It is to be placed into a circuit, but it first must be cu*tktwh 2u.oe3t in half so that 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 wired9 jzh18qj4 d ivwa3,sz5) s djmp.5 8htbxk+z II are made of the same material. Wire II has twice the diameter an hzztd4z 981sdv mj55xj8kp b ia.qh )jw3s+d,d twice the length 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 has twice the u9-3e/i*x:sofs.bpi km7 ) . p zifqrediameter and half the length of wireb/f7o fksue.i:9.*s-p3 r pqxi zm)ei 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 r71d n 5iavu ()dj;ihiresistor has 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 of this material because of this procin1j ii 7d(r)dahv5;uess?

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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 wanm7h t sh0uctm)l++1kjts to make a brighter light bulb. He decides to m 0t j 7m+mhskcl)uht1+odify 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 5l/b.nj cnrobxfc5u3+ dbv1 ,same material. The length and radius of v.5bnu rcb3cnfxd +,5j/o1l beach 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 ofwr0iv 05dikd-tht * p/ resistance R, are connected to a battery in the following way: “Two resistors are connectedw05-h dtv/r i0dptk*i in series. This combination 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 circu m9s:y);hmwse it diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reads: wm;9emy)sh ing 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, 37if.u2s wxx k5sfz;vzz 8pk8 and 3 - represented as resistors in tpivzx5 s s8kfk37fzzw;8.u x2 he 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. h/s)avb8 x,j rmt0o l7tl78vuIf the current in all three resistot0o7ub,t as/j8m )7 lxvvlhr 8rs is 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 right represents a simple electric circuit compos la :nqkfh.5.dv,4fi6l6axp hed of 5 identical light bulbs and 2 flashlight cells. Whk:alna .4pv.6hf,h iql6 df5 xich 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 statemen6(q(( hzcfg-wcqga q *ts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal res(qgqh * 6wa(cqz-fc(gistances?


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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 bri c7zd s4lpf+d;ghter than bulb Y. Assume all circuit elements are ip4l; dcdz s+7fdeal. 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 resistor svcvi;h 9,4fu c--v fhn-7cs d in 5 seconds once the cv-4-df7fn ;-v 9uhi ,vsccs hcircuit 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 sim1lnt -ym t*2r w0s.tksple circuit have the same resistance, which would wlsn0rky*t mt-1 t2s .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 i w q; 0 wgu0d+z4n(lfte/d6h smm4if/the 6.0 Ω resistor //i fz;0q46wgmsu0in( emd ldwh4+ft 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, a4zye .2aa5 yl)w1r beadz5v 2mnd 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. Wh4e)ylzarw2md v52 y.51abez aat 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 resistoxgn/; nf22*q,pkc nqgrs R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is th,p2xk */qgnf ;ncgnq2 e 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*0kl3o rohnt x2lhh (zp m)*m.. What is the maximum va .h3)* *p0zlo oktxl2(rmhhn mlue of 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 designed mjzbx 4bg6:gs(8 8xb 6/begzdlf7 ;l bto operate at 120 vog l(b688 xbd4eb;gbb xs/z:j6gzmf7llts?

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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 w/64*oq0 ibbnbd30tvy dg i9 zthrough a 4 ohm resistor that is dissipating 36 wat t0db4vi60 b*on/d3wzyq9 igbts 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 press clo 3bjbd jy)w7;wthes is marked "120 volt, 600 watt.” In nwwd;3j bb)7y jormal use, the 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 resbe-25tzc*kf9guf ru i7j 1z5 bistances could NOT be produced by a circuit containzuri -fbe5* btgj1 57z9 c2ukfing 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 sc. 57ys1, jbm8tmvaw.0 Ω resistors. Which of the following equivalent resistances CANNOT be produa5m msyt,v.ws1 jc87b ced 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 j l e.u4xuyc2eb87vpylhfl,c ;n b/,,together in different conlb e,u xn,/jh,eu84;.2llyc7bcypfvfigurations. If all three 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 conne)g37p1uxudq r cted to a battery, 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? Assume the internal resistancu 31xr)p7d ugqe 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 bua)(a9 r 99 / dmqdwaj8r8yedresistance R1 and R2, are connected in parallel, the equivalr dm 9yw()8udbare8daja9/q9ent 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 t8-wn0t ki .n*dr 0enukhat it has a resistance of 12Ω when operating at 120 volts. What is the minimum a eknu-*nw0 r .i8ktdn0mount 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 t +2djqnw ;yl+bhrough a 4 ohm resistor that is dissipating 36 watts of powj yl2 q+nbw;+der?

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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 1/ 5loe,0ptflw 20 volts. If the price of electricity is po0el f5wlt,/ $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 lightbulb lit con0v+huudb )nxky/jm.a v7/) j0n rxed3tinuok0j7 dnh0/v3+ )ex. jn rbxa/y)mvduu usly 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 u-7lkq g l,45 i)wyfz t6b2ifh*lki1qof 4.00 A through a lightbulb results in a power of 24.0 W associated wifz i*,)y27lw1tk ib lli65 4k hfq-guqth 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 a computer rated at 500xqpab78 g stj *w89fw, watts in a 120 a7tws*jxbw9q ,gp88 fV circuit. If all computers 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 resisto.hqh4g:* (abn,g;r8dmui vg 8ik:fn yrs to form a simple circuit as shown to the righh;hn .f gg 4rgam(8v8ndy::uiqi*bk,t.
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 qbad4y ic,au 7ww f;3w-54ywyto form a simple circuit a,ca;au4w y35wfb4wd7 qwy -iy s 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, a s8h(ote2 dg(fl*l) ojjj j5c4cwitch and three resistors are connectecfl j o5)2tl*ge8j4c((dj johd as shown. With the 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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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 co4ep lav5gc*-onnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.pca4le* o5v- g
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 resistorc mq 6nmifu7:/g* am8rs are connected as shown. With the switch open as shown in the diagram the ammeter rea7*gir:q 6mfa8m un cm/ds 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; aske98 rxb2n right, what is the equivalent resistance? Assume that all wire;ek 92asrn xb8s 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 resista fpwr5 9hc 4ie/tobn mtwal6(5r6-)ytnce of the circuit shown to the right with resistmw -t t65oyli/hn) e46(bpc tfr awr95ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 la j-itlr() 42oaw galu9wb1v4z6n q7combination series and par(1l-)g6laa4niw49 ozjvtwlqub7 a 2rallel 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 belr26* )qps5 lohz / c )k1f.6vjlok 22xzvdkgfuow shows five identical resistors connected in a combination series zl226pv xk25ofq1r/vd.)of6 )zl jkhgs k cu* and parallel 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 of the bulbs o ;mga:xf3a6x are identical. Which bulb will beaxax63f ;mg:o 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 resipsua (,dfl0jhv-w 15q;1,.bzwyrgita cy* 4mstors are connected as shown. With the swaly y0*bd;rvw( s.qwjmg 5 p4,f ut1,-hzica1itch 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 ideal ammetmaanh 3d376u ger, a switch and three resistors are connected as shown. With the switch open as shown in the diagram theaa 3u6 3hndg7m 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 db2-v2.gjp 1kc;l ede3ex0 mk three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r eedk;2xde32pk0 vjc .mb-l1geads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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