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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 eg+ )nqy s/qe9,yqu,kc lectric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow thro9,kyc )q/, gqu s+nqyeugh 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 resistorse6q j0*f:;, elf7e .vhnxjcw i are connected in parallel, the_________each resistor is.fj;c7 eiwlf qhjv ,*e0x6 en: 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 lightbulb causes thwsx+ ire-pnv2r0 ;96/uyiy uqe filament to become white hot, while the larger wires connected to the lightbulb remain much cooiwr6nqiurvy ;s/2+x0e- u p9yler. 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 zxg+(// ed-js ja7pzrr.e/sy with LEDs. LED is the acronym for which one of the following choices? / jsegz(s/x7/ d+r.aj-rpez y

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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 an03 4zf (f6 mjx8-tlk k-au e2hwkvrlb.d cross-sectional area A. It is to be placed into a circuit, l-2 l (80uwr3h xkk-bev zkja 6mf.t4fbut 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 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 twik dia33i8 : (;yzleaytce the diameter and twice the lea iy k;3tlzya(:e8 i3dngth 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 b*;94d.s7d kgxz fncr same material but has twice the diameter and half the length of wi;n gbcxk*r74fdsdz9.re 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.ssl5ah,q w --s This piece of material is then drawn so that it - q5-sal,swh sis 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 light bulb. He decid+c-uoq -16as3omjfpses to sa jmfc6s-q 1+3puoo-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 resistormepajjk l;bg o341 t.7:g c2sms are made of the same material. The length and radius of each resistor iet41 k lbm2m3c;pg:7a s.jgjos:
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 in thdn-etfo8 s j2cd ;0lq5e following way: “Two resistors are connected 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 eqdd2fol 50t sj-e qc;n8uivalent 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 8(jl6 lp/rzopresistance 10.0 kW and the ammeter has internal resistanzllp/ j8(rpo6ce 25.0 ohm. The ammeter reading is 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 compou,eje4e1t f2 pj z2tz 3ady/;yond circuit shown to the right. The three bulbs 1, 2, and 3 - represented j2ee1t/ , zya3fe4o ;ydjzt2p 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 robxed7 0p oh9 m1y-;hright. If the current in all three resistors is equal, which of th1me ohophx907 y ;brd-e 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 eleue .-3h9gtw+hss mdw vza6vm+e qp38 8ctric circuit composed of 5 identical light bulbs an8qe9.um -w36 d +8smsav3pthg+e whvzd 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 the 5*d:zz;j6p vab2t1jm p*u 3v,ry hijusimple circuit shown where resistors R1, R2 and R3 are have equal resistancpj ij:p*h1 2uab5;tv z*v, ud rm3zyj6es?


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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 b sllw08dz9:j8rmci/m+q6d is righter than bulb Y. Assume all circuit elements arej mi:z/im6llr8dsc+80 qswd9 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 wud l/fpi;** +jgw kce9b.+att nedj86ill pass through the identified resistor in 5 seconds on+p/e8 9bj*iu;gn.* ljttda ed 6c w+fkce 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 following simple circuit have thvnj t/,4cxx2r e same resistance, which would dissipate the greate,xx/nc2tj 4 vrst 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 edrie .8er+ j rpr5 ottho4d8/25fjm,current through the 6.0 Ω resistor is 1.0 A. What is thihe. emp4t+r 2deo 8rr 8 j5tjf/5od,re 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 con b ck3f8ev3 ;*cc4wqopnected in series to a battery. Suppose R1 carries voc4e;p*q fwkc3c3 8ba current of 2.0 A, R2 has a resistance of 3.0Ω, 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 paralls/ nz:ww8, ekeg2uh*gzi ep2q gd0 4m;el to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What2gek *2:ewzhe/gsz8u, pmwg4;di qn0 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 voltzm-;yff1 bo 8w3p k3hjs. What is the maximum value of the current under these condition;1f8-3 m hzbop fjwy3ks?

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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 oper2)b u 1 n5ax-hsggxp3bl5x+cc ate at 120 volts?xb+l2p cxhx)b g3gu55nsa c1-

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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 aj)k -1n tki 8k/f)lom ;qwm8wt 4 ohm resistor that is dissipating 36 watts of k ) ;o kftnqw- 8tim18m/lw)jkpower?

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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 wattb raf 6fp 2ab,k6v(-2jb wmu0k.” In normal use, the curr6u,bvkbfaka0(m 6-b p2rf2 wj ent 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 produced by+3amg.j ei2wvz 1:3wj p 7cvwb a circuit containing only three identical 6Ω resistw2wvjgw+mijev b3zp a 73:c1.ors?

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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 rer,p6 uq9lfz: sist6 vqr1xv59sistors. Which of the following equivalent resistances CANNOT beiut 1p9z,q x:qs6vl5s9fv rr 6 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 differentm) j7s/94;xpykn2yh iy1bx i fz2yo 0k values can be connected together in different configurations.0 hf)p nx9yo;yxybki2ks/127zi4jy m 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 cpk i hgkd74j),onnected to a battery, a total power P is dissipated in thpki,jd7 4)hkg e 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, havifl+ ao1z7z lz6ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the zll1z7af+6ozfollowing 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 has4gx-h-o(vix fi6y y 03x;kpm j a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water froi(y jk0 y ;pv4-ixg6x3m- xhfom $15^{\circ}C$ 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 curren qgty ppwxy-3iwd.73 -njt3hg *+ *nkgt flows through a 4 ohm resistor that is dissipating 36 watts -k*3n*d x it-gw+ n hgwpyqt7.3gj y3pof 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:h)ub pmh w4l/ draws 13 amperes of current when connected to 120 volts. If the pricehhwl:mp)4 u/b 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 cost to keep a 100W lightbulb lit contizwa7o1 i3u 8gdnuously for 1 year at a rate of 1awzd3i78ou g $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 r8 u/d5yke gz3uesults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of t/ duek 58z3ugyhe 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 c,ncg/4wsc4oxt o / g6nomputer rated 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 thet/nsc4n wgxg/o 4c6 ,o 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 58fp6 -xibp 8l )tco +:kcdcgdto four resistors to form a simple circuit as shown to the rf8 b tx5dok6dlp) p:g8ccic+ -ight.
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 simmuksg(l+8. dxple circuit as shown tomdkx+. (su8lg 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 amm q75unsh) 5bo1.hc m/xt 0fttseter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter sh7u5)m5 tftq1 n.obhsxc/0treads 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 conk qa;81 nezj(gnected as shown. With the switch open as shown in the dk(18 zgen;qajiagram 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 switch and three resistors are c2wfx f3(1kpts./ga hogs1il mn*m *o.onnected as showns/fligf*homm p*3x(naw kg1ts2o 1. .. 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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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 ihsubh5w hp)0/-g mw +fs the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R. uwh)0h/h ps5fb-+ gmw


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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 revry,i*--km sw sistance of the circuit shown to the right with resistanc myrw-s ,i*vk-es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 re:4p040 vyno4v za 3yg)kdq mdmwq:;ubsistors connected in a combinatio k4zwovvp:y;0mn)m0yad bd u:q3g4 q 4n series 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 identical resistors connected in a* ,x+)(p5xkskf6bho8ur j fqx 32wycb combination series and parallel circuit to a voltage sourc 3k) xso,qby8(2jkfr6*+5puxwxfc b h e.
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,-wyro*8 i;h lq all of the bulbs are identical. Which bulb will be the brig*oqylhr8; iw -htest?


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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 thr9g47gvgv4bqg ee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 avggq4 g4v 7b9gmperes.
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 swit xufj1-+n.ym tch and three resistors are connected as shown. With f xmu1+ ny-jt.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 ideal ammeter, a switch and three resistors arfeo mpv/2y6qu9 f*igw27 o t4je connected as shown. With the switch open as shown in the diagram the ammeter reads9teu oj 6g*i72fp m2w /4vqofy 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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