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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 4zcn3d - wf.rpexists 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 through the interior of the rpw dn.43r fcz-esistor?


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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_________wio3/;j*zub a each resistor i 3a/j*ob;zwi us 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 wirebcpwb g+n13z rs7 i3b,,ke cp6dce.+e of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaug ,ks63.+pb,+cbbdpie7e1 rwzcn c 3e se

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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 is theotv9nk p b9lap)bl/.t 7*ubp( acronymkup9 l9a(bplptb7o./ n)b vt* 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 resid-z)t mvjl1,lz5n-yz/ u/a r ustor has length L and cross-sectional area A. It is to be placed into a circuit, but it zz1,5ya)dmltuz -jn/u-lr /v 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 Iic 8 lidncsw-s-j9)(v 6ypat,I has twice the diameter and twice the length of I. If I has resistance R, II has8pv-c nji,(ca l6iwss)d t-9 y 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 wmj/d;v57skuf-) udp of the same material but has twice the diameter and half the length of wire X. If wire X has a resista)uk/-pmw5jsf7vd du ;nce 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. This piece of material fy;y;zxfu- ,dvl3:nk is then drawn so that it is a cyli-d;lf:y;ux,3y k fnz vnder 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 Edisolxn 4duoa n o(+zy/lmdjc,;6,fcbt2p.d0p;x n wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb ol+2nd cl;,;tpcaf(ubd oxd6,40yx zn p/ jm. 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 resjhpf m (5d0b9:kgrw.sistors are made of the same material. The length and radius of w :bsg f9p0 d.5mj(khreach 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 resistance w8 la-+i a0wnpm9b8)c) umgpcR, 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 three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistigaccw- 9p80ub )namm p+)lw 8ors?

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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 resistancejkrwfbt.l6hj3 zdt-w. k8ag 0 c:;e)u 10.0 kW and the ammeter has internal resistance 25.3)wl .je:u;a rkcdgj0 bt kzf. -6w8th0 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 c7 p7uaza*t mw fw7ex,v*r w.u:ompound circuit shown to the right. The three bulbs 1, 2, an:u7x. wtwue7mfv*7 wap,az*r d 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 a2s w qynz(fa1yfj3xmc+:.yn*t the right. If the current in all three resistors is equal, which of thqasyny:f 3yf . z2nm(wj*x+c1e 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/q7;jh jzc x7jed of 5 identical light bulbs and 2 flashlj qj/hzj7;7 cxight 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 followi;d;f-lm 7mb6oyazafr(mi0m0 ng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are havem0;(7ido mm z6f a-fr; ylm0ba 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 anc;u,zq1avo+v2why0bd m a2;c dY are connected 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 with each other to the same battery, which one of the following choices c1u c ;,bva;amq0z +2vhw do2ybest 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 i: v.67ejn urbdhus:eo1jh 25gn 5 seconds once the circurgj h2dj :u.e6ov7 1ubn: h5seit 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 th(oe01u mgx8geyi fv 3 hn;q-,he same resistance, w-n;hv iyfgqxmghe1 8o, e(u0 3hich 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 diagra br+xultn cpe-5 9t:+t(x yv6tm, the current through the 6.0 Ω resistor is 1.0 A. What is the power supplyrt5+nb 96:tt(ul + ytxce-pvx 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 vd9 3cf(dzc rqf7vs7 22*g;biqj3zkk, and 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. What is the voltage jvcz *3cd b922i7qzg7 sf vkqf;k dr3(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 re(nybgdn.w2 86 r7o fljvo5 hz;sistors R1, R2 andR3 are connected in parallel to a batnw7 z 8b rgjnh(5dlf.6 v2yoo;tery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 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 him;r;;l3gx ra u -hy)is rated 1200 watts and 120 volts. What is the maximum value of the current under them3g;hra )rxly;u -;h ise 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*qpt;r -:j fso to operate at 120 v: tpj;fq-r*s oolts?

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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 4 ohm res.: b,mer12pzn-p cik)s n,o1lam d-nuistor that is dissipating 36 watt.c2uiz opbrnpd,n1mm)s lk, :1- n -eas 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 ir m8t;mccbv; *u846 qnfo3 w(q/zbdcafon used to press clothes is marked "120 volt, 600 watt.” In normal use,o(;d3*f4nfqat 8mcwm b;8qu cvb/cz 6 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 8prmnc b:.d5pot2d 6zd3ae (tfollowing resistances could NOT be produced by a circuit containing6bpt.:na3mtcd ( odze852 dpr 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 1.0 Ω resistors. Which of the following equivalentj;h(w 5l jsn 3d2bwxb7qe u/5h resistances CANNOT be produced using all three resish(3b5u7 w;j jlwd2exbs n5 qh/tors?

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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 diffsax errl r4gqg4; t4.+erent values can be connected together in different configurations. If all three resistors are used in a circuit, hoxq lgr 4etr4 4+gar.s;w 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 is .j1o; pxrbh7qzxhepw /3) pa8ay,r b, dissipated in the circuit. How much w7; qb b8az) h,xp.ar3j p,opxer1h y/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 resist6u khz:9jae c)ors, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is u: z6jh9ek ca)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 sucb(jy*c0:a aold9/ o muh that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount *:bcl0y ojuodama9/ ( 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 through a 4 ohm resistor/d6-zwj6krq/weu ( wu that is dissipating 36 watts ofk6 ww(er -w/u6dz/uq j 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 -prjo)a*- t mtconnected to 120 volts. If the price of electricity )m- t- r*jtpaois $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 cont.sff; )s:6l o1titzluinuously for 1;it6tl)ol sz:1. fusf 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,.yfa*l(;mgg c e os*3hmv:s t of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices s he*ml(mtf. g3sg oyv:,;* acbest 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 ody/7i/4zm ofccru8* e) fhww+f six owns a computer rated at 500 watts in a 120 V circuit. If all comp cw*hou8 +m)deriff//y w 47czuters 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 fib 2cpz/0jfgud i- 40bour resistors to form a simple circuit as shown to thgc4dbii 2b- p /jzu0f0e right.
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 battesiu2 72khqtr 6 geuz69ry is connected to four resistors to form a simple circuit as shown to the righsr2i6gz27u9h ekuq t6 t.
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 p8g +zdalh -qj83m p)tthree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 8hg)dmpa+l-pz j3 qt82.0 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 idpegzwq y;h5d7cy6+y) eal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th+7y hw5zeg)yc ;dpq6 ye 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 switch and tn/vqk4( 8 ih 2bcz my0ctus;z,lynp) 8hree resistors are connected as shown. With the switch open as shown in the diagram the ammeteryh8 ;sz8czk),l p2bc n0tnvim y/u4q( 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 rightn:86o nrh(wyf , what is the equivalent resistance? Assume that all wire6 8nh noryfw(:s 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 ,:,e 4qmegwfhr8vn )e right with resisrhe ,wv)g,mq fee:8n4tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiv 3 bed ng,fxo/rgpb01e* g-6lee identical resistors connected in a combination series and parallel circui/*pg e-6e3gdob,g1eblfnx 0 rt 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 connectew ezh5;z//fd pd in a combination series and parallel circuit to a voltage source.z;d/zep /5hwf
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 ; viy;favc ,r1(r 2nsnu5: awx pkpj(2are identical. Which bulb will be the brigh; c;n1n,jis:u2(5xw(p raryv a f2 vpktest?


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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 resmrpdmco12d6/ bz(xo qd m34d0istors are connected as shown. With the switch open as shown in the diagram thd4c o/mpmq2dxod1 z(b0m dr63e 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 ammeter, a switch a *mv ommlwz)+,nd three resistors are connected as sh m+wlzv*) ,ommown. 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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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 6t hms 9ev*bf0w+5oue and three resistors are connected as shown. With the switch open as shown in the diagram thee voh9 f0b5w +mes6*tu ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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