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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 electl42n 5m:ad5m(xrv ml xric current exists 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 td5(:xavx5 n24lmr mlm he 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_________each resis-e;(ljlz p 0g ebotfcw3 9:v(ctor lb0-;e:3fw o(t(jgpz le cvc9is 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 filamenxh) 1rt nhge2+-dtl- ct wire of a lightbulb causes the filament to become white hot, while thtet+-d2 x1 h)cnl r-ghe 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 lig; +ieqv/.o2v qkzc6f h-j,x yyhts are being replaced with LEDs. LED is the acronym for which one of the following cqf2v/-hkzy; ox qj6ye,.i v+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 gr7t1 yqpro68f; lhl:-z6 b zdusaphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be; y6:rbz6f 8u71qp-sd ll hotz 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 hanr 0rwth*m: .gfw)g q z/:8pses twice the diameter and twice the length ofgwf/ rm0.t:8eqzp s*w) :g hrn 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 diameter an isfs(w: nt ;(5:venjkd half the length of wire X. If wire X has a resistance of R then wire Y would have a rew:5stejn(kvf :(s i ;nsistance 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 ex ke-vui9 9kv)*f5qj 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 this e x5q9k ukif9jv)-v* eprocess?

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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 brighyb1uop2 ,yejuj k :b;e8h +c:ster light bulb. He decides to modify the filament. How should the filament of a l2 e 1;kch+: sb:8jj,upeub oyyightbulb 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 madex2ju(ni3ut )i kix)y7 of the same material. The length and radius of 2y3jiui)ix7) u( ntxkeach 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 R, are con so3wu: vfi 8.:y 2eiko;6y+ambux u3snected 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.” 3:fu x3uo vmisy+o8iu : bk.ea2s ;y6wWhat 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 a3 p yc*h,j pqromx41i+fok( 4pccompanying circuit diagram has internal resistance 10.0 kW and the a1mypi4xfc p or,q(4p +j k*h3ommeter has 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 compound circuit shown to the right. The three bulbtl1 d3vvss7z l9j2+mh4cnm8ve yjt2 /s 1, 2, and 3 - represented as resistors2m / 1s28mzctt4s+jledvnjl9hy 7 vv 3 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 y hh0 , c 2wt5c48mvc.8bexpfgelectrical circuit at the right. If the current in all three resistors is equal, which of the fo 0c2w8. g, p4v8yf5 cbxhhmetcllowing 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 a2g,hh fl4u1-p:efea ij9): rlq,szk q simple electric circuit composed of 5 identi2e,9 f1uz4 r:)hj:q- i fha,kqpsllegcal 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 is NOT true con+(ct 87wbdmwk- 27- kvphzlrscerning the simple circuit shown where resistors R1, R2 and R3 are have equal(2drvw7skc+kph--7zbw t m 8l 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 is s, b kvl3 fb ot, b/;ho5as1)j.dhqjo7brighter 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 best represents wha,a7bj )blos ;f5 tv.hd3jqb1/,soko ht 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 wilo -y c6h2ear-bl pass through the identified resistor in 5 seconds once the circu-coe-ahr6by2 it 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 resistor txqz9 c6myop6l04gn:s in the following simple circuit have the same resistance, which would dissipatez6 4pom0 lx:q9gn 6tcy 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, th2 vz-lb2gwha76hh7a ,do2 su6mju 0 ike current through the 6.0 Ω resistor is 1.0 A. What is the p2h 7a-mlug2w6vzbsd, j0ahu67 h i ko2ower 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 :zay7iz6op*u ppr0 k*, R2, and R3 are connected in series to a battery. Suppose R1 carries a ckzpp op76y:ua* z r*i0urrent 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,h5dsd toog9cr w+;65h R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What i5hhgcrs 5 ow+tod d9;6s 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. Wh3h/-+jrr y yncat is the maximum value of the current under t rcj-+hrny3/ yhese 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 ouazx1ekcg/ (qsj 4 8w,f a 60 watt lightbulb designed to operate at 120 v,axz( qjwce1/4 k8 sugolts?

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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 resistor that is dissipating 36m-dq-: tioc--)i ikd u watts of poweu: --ci-d)-toq mdik ir?

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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 markl* ;mmdajop5nx/ f42c2r* 3yr;rbk lred "120 volt, 600 watt.” In norrj**;rdc4 y kr/;lfa3r2x2 lmp 5obmn mal use, 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 be produced by a circuit coc8d p3xef32s:rn+v4k dqdt t4ntaining only three identical 6Ω re v +24tf8d43teps cq3d:rdk nxsistors?

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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 followie ,f, n6b mzwntklab 3pg-/x5)ng equivalent resistances CANNOT be produced using xl/nzkgtba3e6-nmpfw ,b)5 ,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 connected to:bcbp4 rj,s(0e y+xoh) tc o/gk lm,h5gether in different configurations. If all three resistors are used in a circuit, how many different values of total rsb :t4,ojc )ob0k5lhcm( epxg, h+r/yesistance 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 r02rpf.cp kdj .esistor is connected to a battery, a total power P is dissipated in the circuit. How much total powe.2 dkppc .f0jrr 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 r12q 6jqiki.hiv 1n of pd(;h,lesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is c2.hd l;(n j1 ii1,qohkqvif6p orrect?

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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 resistance of 12Ω when opera c:teskz,hjc1037f2qmx zmm+c:p fp z(r hd/) ting at 120 volts. What is the mtscchze: mjp1xpz7 dh:+kmzf c 0 / fr2,q)m3(inimum 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 through a 4 ohmi 5 +v yp+t(c3xrj3orh resistor that is dissipating 36 watts of powert(v5 ++xi3yr 3ojcprh ?

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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 w9bgu (rb578j-if0kpjj+ypt h h8qvz 5hen connected to 120 volts. If the price of electriciqvjhb8khzyi 7 -jtb9fjp0p 5(g 85r u+ty 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 co 6kzg v)5wqcs/8z/ awh i22frbst to keep a 100W lightbulb lit continuously for 1 years6 ak 5hw8r)fwgcvq// 2 izb2z 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 c8/ f kfd c)wehnj)fayfxi3 3r6+8s7nA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following cho7e s/3i3+xwnjf kd8r)y hcn8)f cfaf6ices 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 i /z.0xy,mi bda 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 the maximum number of tx,/i0yim .bd zhe 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 a simple circuit k r v2i,wf8hoyynq/kh)f/a7 doji.8 ..h,.o2i dfy/w)8kr novqijyk/ 7fh 8aas shown to the 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 fh /erm5ife5jwqbm;j y;1 vs3/orm a simple circuit as shown to thwr/1 vmhm eqb;e; yf j5i5/s3je 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, an5b urf2+7 wj zmhyjn;4 ideal ammeter, a switch and three resistors are connected as shown. 2r5h7 jfwuyzbj;+mn4 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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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 swit,k4+bow vd, f*ueew, jch and three resistors are connected as shown. With the switch open as shown ie,o*+jfwdu wkeb,v, 4n 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 ar7rsw mewrih f)*u.6a,e connected as shown. With the switch open as shown in .,)6em s w7af*w hirruthe 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 rightzc69e+i e,lta, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identica ecl6e9tz+,ia l 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 equivalen dpoo3nzi zl(3jzbzl)3f ,4 5xt resistance of the circuit shown to the right with resistanco fn3zi x z 53zp4,zl(jb)lo3des $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 0q;p ieh:j/ qouii+ c9in a combination series and parallelihqujc /:qpie0o+;i9 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 combinatcwf)+ c u2bkb8ion series and parallel circuit to a vow 2bc)uk bcf+8ltage 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 anb/,dw( hg7 t bulbs are identical. Which bulb will be the brg/h7 nt,(dwb aightest?


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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 amw(jzhz05 ye)05, qh4 kjoudokmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the 5 ,)uwozh5yk (zkh 0j4dqjeo 0ammeter 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 and three resistors are coyg f)*-jdltr(ab f)+9 ub/hjgnnected as showbfyg-jbjt/r 9 (+ ulha *gd)f)n. 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 and three rr ; 2d*u;4x k.icmkpx65q/ vk h8xkvp-ci.bqzesistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0. k;ik k d6 5vx/mx qbkqpc8h v4r-*pui;.zcx2 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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