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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 elecic pzky5bo(q g58a;/itric current exists in the metal resistor connected to the battery. Which one of the following choice8i/zacyop5k q 5;(bi gs 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 parallel, the____tpd oq-jjhtm xr*8u,0 /rmq1+e gq*)c_____each resistor is thqgp qo)e10*t/jr tur ,xm8h *jq+cd-me 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 thro8 uiv( n:lbv7ough the thin filament wire of a lightbulb causes the filament to become white hot, while th(uvvln o:i78 be larger wires 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 are be 3q-1 etba-.1dsv vnpmf8hl -eing replaced with LEDs. LED is the acronym for which one of tn8sa1qmve3lv- f-b th e1.dp- he 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 res;4urgy3p- bk ristor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cgrp b r;43k-uyut 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 mas/xa84+ aazr (e 0xrkvvgq(+hterial. Wire II has twice the diameter and twice zh4asxqer r +8akva(+ (x/0vgthe 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 c1dy/f88vd x b/1enk rdiameter and half the length of wire X. If wird8x/nyc1 /vb 8krfd e1e 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 radi 9fpidm x00b4eus 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 materbi0p0e d4 xfm9ial 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 wt+vxl.l6l6 q decides to modify the filament. How should the filament of a lightbulb be modifi6l.t+ 6qxvlw led 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 samd ,h7wtq e--po5 dhxfas9 cerpj/z,d,5b(l2ge material. The length and radius of each rerj,,bdd(a-p2swlxef/ e-pz ,dhhtg9c7 5 5qosistor 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 R, are connected to a battery in th/p/x4z91sc nz fgdhy.p)1 emyj3m 4ave 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 conne4y 1pj 4dpn9m cmg3yz za/h1.)sx/ efvcted 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 diagram has internal resi aomk8jw z1 2xq4+lmy9stance 10.0 kW and the ammeter hk9zql ym w1a 428+joxmas internal 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 compound7eo2 db l u*3ky+1agnpo4-pkl circuit shown to the right. The three bulbs 1, 2, and 3 - r gk4nl1eyakpo+lp*3ob-2 du7 epresented 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 right. If the cur*,fpiz gk h61urent in all three resistors is equal, w,f*hkigu16 pz hich 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 circ;6 a j*y-m vlc2l86iwoey- ivhuit composed of 5 i2l-l w vyj-ya;h68ovii 6*cemdentical light bulbs and 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 r1qc 4azxg4 r6is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resista4ax 1 gqzrr4c6nces?


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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 r0*avf*s xb4:7-my 4gik lxyd andY 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 o7i fgvby*4 -*rm:04xsak ydlxf 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 passcfx6:t8jd*ocwi 9 6(w v*y wvt through the identified resistor in 5 seconds once the ciwft:(tj696x wv* covd*y8wicrcuit 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 resistorslou/ev) (xt+m*xv 2xw in the following simple circuit have the same resistance, which would dissipate thux(lw2*)xo+ xt /vm vee 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 accompanyxn8yen;z v*x7 ing circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What vn nxezxy* 7;8is 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, and R3 are connected ini :n0bh 3mjy/w series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance 3/ijm h0bw: ynof 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 paruz/uv0:un g : kuy2ypiyft5x3/d 54woallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dto p2/yu ux545yzy:wfuvgun3 0 ikd:/issipates 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 volts. What is thnp-n.gc t (0pse maximum value of thepn(cs-t gp n.0 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 lgcz7fz:3nea 9em fl76f .nq0 eightbulb designed to operate at 120 volts?7n9q6 ena7lf:cg3 fz m.zfee0

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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 resistoq(a qb ifq+:v5.m+.+kxgct lxr that is dissipating 36 watts of power g. bq+tvmx+q.cl :ki5aqf +x(?

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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 watt.” I2xe hh,:5- ankxr4ir89n dbsasy 8/krn normal use, en/,hiar dxx 5khr:ysa kn 98r 842bs-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 resistances could NOT bezkuyp0py*aj3 /p2+v a produced by a circuit containing only three identical 6Ω resyp0pa/ykz*a 3 2up j+vistors?

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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 resistorsvb*q: *8gkvelh4 rm+k . Which of the following equivalent resistances CANNOT be produced us:g 4hke*vmv*b+ lq8rking 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 cec :.b4tzf2cq onnected together in different configuratioc qb2e. cz4:ftns. 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 cl f5mucpqe xqe5z0) mi;t(5h)onnected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated izl 05;mq 5u)tfh(cmpe) e 5xiqn 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, havingu wjpo9-wbdud -g(ab;v+f* 3s resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which ofpg;- 3wd9uwf vd-ob+sj*b ( ua 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 that2 7rln(n6mq; j4bjidl9k3f hc it has a resistance of 12Ω when operating at 120 volt7f d4rl3 ;nkq2jbnch(ij9 6 mls. What is the minimum amount 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 thr. nccd+e lj1)xme2 lc1z:g/qjough a 4 ohm resistor that is dissipating 36 watts of powe1 ceng1 lmcljxj2:cq/.e+ zd )r?

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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 d4b*;) n:cu*am seyyv n:bt1oof current when connected to 120 volts. If the price ou;dv*m4a*t ysce b1y:n b o)n:f 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 -xx. id/d7 sr4 qi6bxxcost to keep a 100W lightbulb lit continuoussdiidxx.qb /7 4 x-6xrly 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 of 4.00 A through a lightbulb results i ws,cq)*s +t4er-nhxjn a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance o st*e-jns,qc+4 rxwh)f 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 500 watta-+xpt5 su+kas in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the-utp5a++a sx k 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 resistors to form gesc4lr 8c1yek*j 4hb6c +i4/gk ny9 fa simple circuit as shown to n1cs6j8g r el4 cykk +c4gey4ibf*9/hthe 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 battery is connected to four resistors to form a simple circukkgcgz4-k+/frj uw .7h:tl ,kit as shown to trw g,+kghlfu:z-k 47k tk.jc/he 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, 30*m; ta ockuolyw5)va switch and three resistors are connected as shown. With the switcaloku3)v 05mo wy ;ct*h 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 switcho03 wm2eapyzc+x7eq yr47 gw1 and three resistors are connected as shown. With the switch open as r7e z3ea70g4pwo2x+ mc1wqy yshown 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 battery, an ideal ammeter, a switch and three resistors tmj),eaf e;n, are connected as shown. With the switch open as shown in the diagramj;an )em,e,t f 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 gy ayk:g(7lkt5/;ve cthe equivalent resistance? Assume that all wires are ideal, the battery hasgyyk eg 5valkct(/;7: 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 .nn 5 lf/ib 9*xvn4hijcircuit shown to the right with resistances nx4f /lbhj*i5nvn9 i. $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinat;9u*ef*i+) ju7vh awr l8nr ezion seri zjw)e9ruin7+* l*h8uef avr;es 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 resixix2j5u40u, tyrke 8ic, .- xdzzj*mrstors connected in a combination series and pai8xrc5xi,, zd. 0xtyujjr-ze m4u*k2rallel 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 -jqru wy,/ba zt/47k m :twzm( are identical. Which bulb will be the brightesk , jbz-r7z/:tty q/mmuwa(4wt?


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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 resistors are connhu.1 j:*ejy paected asayuj :*ph1.je 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal ammeteta+j w/ s:qh4jr, a switch and three resistors are connected as show :+jahs/4 jtqwn. 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 andhg88jodyy.jw3x9( r e three resistors are connected as shown. With the switch open as shown in the diagram the ammeter9dehx(yrw. j 8y8g3j o reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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