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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 metal resistor c9)7cuq -re * ikzki4hk atc.f6onnected to the battery. Which one of the following choices best describes the direkhrtke zq 4)6 c*7cfi9.u-ai kction 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 con4s.88vym)l zdm n tjm;3gzb b)nected in parallel, the_________each resistor is the d8msnlm8jb)m.z y3tg )4zb ;v 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 x. kyw d-uulkmwsg-2(;*te fi,1 k*uhthe filament to become white hot, while the larger wiresw ,; k2tx(yu*k.s1glfmehdi-kwu u-* 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 household lights areo; 1a0w :4xozhalrcl+-ufqr 7 being replaced with LEDs. LED is the acrh ;+oxr1 4wrl-ao uz07:lacf qonym 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 resibef:o:a uozt6 0b /-jlstor 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 te:zfoa 6bo:ut/ 0lj-bhe 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 ha/, dl.c,i6x/9recnwo n5tpi9b hl5wz s twice the diameter and twice the length of I. If I has resistance R,l ti9dz ln6hor w5 /c59c,, .wpbnx/ei 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 diapr: mzaq+o.sq3gco 4;f;tu:4w3yh cszs mr25 meter and half the length of wire X. If wire X has p3q53 u4o+hmrw;agymsqccrzt;sz:.2 os :4fa 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. Thf 9ynt cfejo,y )6wc9t0w:u5vis 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 thiso 5w9f9: u0tef ,yyj6)wn vctc 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 x jhd-jsa6 l28:pd, ehbulb. He decides to modify the filament. How should the filamen8lx6da j2,-eh sj dh:pt 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 cylindricdlb2 q6tj g*:)0z;0pppfq +yynv68 ypjctdx1 al resistors are made of the same material. The length and zf*2;tpy6dptj yb:00)j pqnpcg+6 x dy18qvlradius 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, each of resista 467j,pt licqunce R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected ilct qj4u76p,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 di*s8x1tm,uhho5k 6hd iagram has internal resistance 10.0 kW and the ammeter has interu xh6s*h , tmd1o5hik8nal resistance 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 compound c: f,6rs 8txggs(k fvp)ircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram(vkp, s6t)s rx:gfg8f
- 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 electriypwo/7 4-z j.zlmt x5o*is (gycal circuit at the right. If the current in all three resistors is eqtl(oyjyi zozx w*7m-p.4s5/gual, 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 re)y,2ep1-ax/sm qs5 ksncu61-t6ufgq oe+ayupresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whicuf+ss5ms q ngp o-1/cy1 u,qx66u ayae)e2 -tkh 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 simple cir )-bax.k7rd: iub- jtg:su qb;cu-rkj. : :ub;u7b-)s dti qagbxit shown where resistors R1, 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 connecw9/: x( ilu 4ztdz.ju9kjx4cdted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel withxzitx4( jckd49z:/uudw jl .9 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 ident7h6+oy xcd ein :z7do6ified resistor in 5 seconds once the circuit was ci6:o xcdny6zdh eo7+7losed?


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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 resis2 0cqri ;w 636xmecf9tm jnt/*9t cbyntors in the following simple circuit have the same resist9y;6*xqmrf 29jc nnt/3 ctwt6 m bc0ieance, 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 diagram, the t 2m;ao5 ni2tdcurrent through the 6.0 Ω resistor is 1.0 d ;nimot22ta5A. 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, andap(p5 rbg,/lm 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 powlg(p, 5m/ rbpaer. 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 paralj5o9(hnk5n vq:f bkcy +g8z7l2 a6bzclel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipazy:khn8j( ok5 l+cg6qz9 f5v b2ab7nctes 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 watt ey- l8d5 )krd.kry:zgs and 120 volts. What is the maximum valu5.:k l dgy)dzeryrk-8 e 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 to opeg;e.j c;z n3my fqp79ifu 6/xfrate at 120 volts?e3;jgxf.cpzm6/ 7q; f iuyn9 f

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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 4riu7 +nf5f xezr r5mig3x(jy-sw71*u ohm resistor that is dissipating 36 watts u3r 1r7u i5jy *-fg(n+siz7 rwx5xefm 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 clothes is marked a*k(wl0 *yoh b"120 volt, 600 watt.” In normal use, the current in it bkw(yla*0 *hois

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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 a circuit coaod9nd7 vj1*p*;s j iuntaining only three identical 6Ω resistors7 9u1ja;*vj*doipd ns?

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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 equiyk, wf3prwqf +i6d d(4valent resistances CANNOT be qdfr6w(,+piyk34 dfwproduced 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 differekxar0ait( * dt fe0h+(nt values can be connected together in different configurations. I*f r 0e0h+tx(d iaak(tf 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 resistor8p le+ niuo4d4 is connected to a battery, a total power P is dissipated in the circuit. How much total pien4 8+4uod lpower 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, havinsd1xplul,o (cc-3ylj lq i0xfm+4*7wg resistance R1 and R2, are connected in parallel, the equivalent resistance of,l-y0uj+xsoll f c3q 7(mwlc1x*pi4d 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 (a(9u*qj8mrmscfe3 i resistance of 12Ω when operating at 120 volts. What is the minimum amount of time t(3ar*ie9uc(mq jmfs8hat 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 dissipating 30 voqg 8xtq;32 f7tfaa6 watts o3 7v ;oft2gaa08qxf qtf 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:m in/(+rz3dwxs 6as pts. If s r+: wx pmi36ans(/dzthe 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 wou .6hl5he/pmsfld it cost to keep a 100W lightbulb lit continuously for 1 year 6f p.5/ slhmheat 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 a powei*vg 8bin 1fv(r of 24.0 W associated with the 1bi(v8 nf vig*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 ok h1u4(lbmp87 yn1thsuxt0fp ;h v/b8f a family of six owns a computer 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 1 vumbsf1k7 4n8/8yhl h;(hxpptb0u t 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 batterk/r.ohlh* r bp+s4lj-y is connected to four resistors to form a simple circuit as shown to the righj h4l+s pr/*ob.rhlk-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 to form a simple circitt hi rh+s*02uit as s*2stii +h t0rhhown 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 switc4 jizzhifnohw f/ko- ;48hl( -h and three resistors are connected as shown. With the switch openk n f4-(w4; z8h hz-/hjoiloif 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 ammeb3eg 4; 4x0ft7hpxzfjter, a switch and three resistors are connected as s0zhfp7;t4x3x4 jfbe g hown. 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal batteq0 mpw d ,j7xtjk*v/)xry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown v0mj7) pw/k *dx,tjq xin 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 is the equivalent resistan65 cgj j/tlu/:ivk8vgce? Assume thativcg8ujl g6 5: v/jkt/ all wires 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 resistance of the circuit shown to the right with 7hjhw* .y zh7vresi 7h7vzj.w h*hystances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistor lesk:e rj9b( -whm5: ugws0u8s connected in a combination series and pare5gu (sw:sh r-mbu09l we:8kj allel 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 identica +8s*s( f5zto9 i1rfy:dbj goul resistors connected in a combination series and parallel circuit to a volta(s8+5yfjft :z* u1oi9gdob rsge 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 qz./jzayhh j 0fn1+c7l* pl 6b diagram, all of the bulbs are identical. Which bulb will be th lyj*ja71cqpb.0z6nfh+lzh / e 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 resiscv96gglk 56gco0l 2 erf2zl+t tors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.ol 2c fg6vl0zc 9 kggtlr+6e520 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 am m;qt i86u3ifh6af h5rmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagiia6fht58mu 3 6rf;qhram 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 kkv6/,(pb pwq and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2b wkq6k(p,p v/.0 amperes.
When the switch is closed, what would be the current in the circuit?


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