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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 metalk-61y g1c 2ahd0nbetp resistor connected to the battery. Which k0dahtnpg y12e c16b -one of the following choices best describes the direction of electron flow through the resistor and 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 paz aml c m159.uv2uk/glrallel, the_________each resistor is the samum95 l2c1z/m kau.l gve.

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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 thinsilrb thgv8 t;+5z8-*ar uq.n 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 because;8tv. n+l-gbi rurzq 5ta* 8hs

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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 iszd efqd q))i)a v g/19jykw(;m the acronym for which one of the following choicew ig/ky))jzad)9 qfq( m;dv1es?

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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 has9x ug u b+k9uae g38r,snf jrboh(5-0z length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut u,j5e-9r +kou3b0u afr gnb x8h(gz9 sin 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 wire II are madem.f ecbrt3q44a k i89n of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistft4mi98c. kr3 baqe n4ance

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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 madeysfi8 x ;shl88 of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wou8y8xl;shf8s ild 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 leng5jkr m, eq io,h7g4, swa0kif6th L and radius r. This piece of material is then drawn so that it is a cylinder w6k 4 0iwf sq,5,, oekigajhr7mith 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 tozr :-o/rmi4r g make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbozgmr :r4i/r- ulb 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 material eza0lefl533ob/p0 s l. The length and radiusoel5p s e0l/l 3za03bf of each 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, v 1x,gp;vkac3znc2+t2 rf)eh each of resistance 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 thrgxkfh2v,cr 23); tazn+e1pc v 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 diae f 7koocrw, +dhxcyx;4;3p(a gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1o(+ a 4xhwoc3cxped;,7y; kfr.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 , ze,5ddwz1pvhn 7ct3shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagramzw, 5tvzd1n37hc e p,d
- 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 electbfzz2 9sl wz(+rical circuit at the right. If the current in all three resistors is equal, which 9wzsfzzb(2l+ 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 rs 3:rexgrt71b epresents a simple electric circuit composed of 5 identical light bulbs and 17 bxerstgr 3:2 flashlight 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 statements is NOT true concerning skb+ l:;*upammkrh f*t52 ru. the simple circuit shown where resistors R1, R2 l s+fk*mturb.m*h;ruk p2 5: aand 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 y rq:+o mk92xfis 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 followmqk2 royx9+:f ing 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 resis:b+.:a gxsfi yqv,9df (wrx n)tor in 5 seconds once the circuit wa f+yr(vdwna9x:.sx ) qb,fi :gs 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 resisdj,59qle 1u, xez6hh btors in the following simple circuit have the same resistancxjl d1z5 ,he96bu,heq e, 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 d8 xu* 1 uvi6aq)3l2enmgs70yfscx)yx iagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supem xf 1y2ivl*0acyuq xg8 6n 7)u)x3ssply 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 connected in serie m34i:muka:vsih3f 4qp2y :f gs 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 ac: vpas3 y i4m2q:kmgffhui34:ross 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 pqc0reg- * 6lyharallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissgl-60y eqhr c*ipates 6 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 and 120 vo4v p.pxdc2px2lts. What is the maximum value of thp2pvp4x2 dx .ce 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 re+xbdkrwng, 6 +sistance of a 60 watt lightbulb designed to operate at 120 volts+w6kr,gd+nbx ?

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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 at 0 7clz2mius9 4 ohm resistor that is dissipating 36 watts of powem927z 0l sctuir?

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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 clothotw-0kzlb 2 5 u2*0d +bh-i0hputlnkpes is marked "120 volt, 600 watt.” In normal use, the currentzn2ubth 05kwkl-+oud*0ph ti pl0b -2 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 could NOT be 5rt+wnu30ftb produced by a circuit containing only three identical 6Ω rerftw5ub3 nt+0 sistors?

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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 is1wi( e uo3grpn2 iz qi)j ,ltw)b;+; resistors. Which of the following equivalent resistances CANNOT be produs)qo,bg r2w1lpi +;i ez)(u;ti3wnji 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 difhnhww l3+ 19zfferent values can be connected together in different configurations. If all three resistors are used in a circuit, howl3wnw19hhzf + 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 power P o *q m2.t1iwp*h-amxe is dissipateemm* x.q1ohi *-a 2twpd 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 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 r6sv,zf g0w *m6vb-azjt x;c.yesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cojst,zabfv ;0-cz6 .gxwm 6v* yrrect?

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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 resi:+n*i lnu kd)ystance of 12Ω when operating at 120 volts. What is the minimum amount of time thaynnd+ lk:*ui)t 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 a 4 ohm resistor that is(eug:oj p c3hqbi ;0p5 dissipating 36 watts of poich p 0:b3u5p(gq;jo ewer?

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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 heater3s ;asgka*oz: draws 13 amperes of current when connected to 120 volts. If tszaasgo*;: 3khe 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 would it o8,k qeo; 9e(aiq mn*icost to keep a 100W lightbulb lit continuously fooe*9ii m(;kn,8o qe qar 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 currenq jk:e x7.8 ntzc4*w8jfsk6 pxt of 4.00 A through a lightbulb results in a power of 24.jc7q8.w: ekxkf t8sj x 6*4npz0 W associated with 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 ateuz nj29 (u5ar 500 watts in a 120 V circuit. If all compura2 n5uze (j9uters 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 connecte nl1m qemc3pi771vnx6h z8a2 wd to four resistors to form a simple circuit as shown to the righ1aq mc7p1nnh lmiz3w xe7v826t.
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 connen2ep sov. k58pfe.k7lxyxnkt9j - ;l) cted to four resistors to form a simple circuit as show2f nln87 ek- yotekx9;vj.p x.)k5sp ln 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 switch and three resistors are()vus96g fytd connected as shown. With the switch open as shown in the diagravg9(y6sdut) f m 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, antjfa4qz 9zr :wn7 rq :dj w4ti:n;)/uz ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amper)jf7q zj 9t;dra4nw/w:r:zint4u: z qes.
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 resistors 58hbp 3py/ghgoq 1i*7lcd)el are connected as shown. With the switch open as showih/ gl*qhod5 78yl) 1gcb3p epn 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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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, l0lw5zahbq l,z7u/v4 what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resis0uawv b5/lzhz,47 l lqtance, 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 the 9usqkizp2j0c61 is.pright with resist. iicq0 jpkp 1sz2us96ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 m80 u4cl :qugf k6rfw:a combination series and parallelfkg fmqu0w:rcu:68 4 l 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 resistors ,3vwmqxp+/ wlconnected in a combination series and paralle,l+qwx/m wvp3l 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 bum;/m f8q vv+vy vyds/9ej czlw(*q(1blbs are identical. Which bulb will be the brights8+//bm9 *v(v ce lvfmqzd w 1qy(v;jyest?


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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 p py:m e:( zn:7*zt;djdxuen6resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2:;det xp6z(d:npmn7 *uj ez:y .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 (nv6xsai4n1s8 q bn1) smqo n:three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2. oaqxiss v)84n1nnm qn (:1b6s0 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 *l4 ham(vx8u8qlb5mf three resistors are connected as shown. With the switch open as s8q4f5bmxa (*v8 uhmllhown 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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