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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 extz -fcnyrx5m2k 6l02xists 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 th62z2 x5xc0 n -ykrltfmrough 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 ar2 yxn8* htm odc)6nyo:e connected in parallel, the_________each resistor is the o6h*: xymdn t8o)2cny 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 througwxc c2ykp 5t69h the thin filament wire of a lightbulb causes the filament to become w5k296yccwxtp hite hot, while the 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 standard8.q3ku z u(wwt household lights are being replaced with LEDs. LED is the acronym for which one of the following ch3wt 8q(uw .kuzoices?

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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 resistothv )39zi)s3h)ua q vl:i0t ofr 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.v sh33ofz)9tvlth0) :iqu) a i 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 samelz 9onbr,:y 7 esd-5ln material. Wire II has twice the diameter and twice the osnbld7-ny,: 9lze r5length 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 diameter andmv8 ,k)tne0ip half the length of wire X. If wire X has a resistance of mvk,nt)8ip0 e 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 haf u31 qje/*-4 ptaovybs length L and radius r. This piece of material is then drawn so that it is a cylindjp*t 4/b oay-qfeu31ver 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 vhg c:+k-seh.)3. k. hk eqtyhdecides to modify the f.t kkcqhvy.g se+3).he:h-hkilament. 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 resistors are made of c* aazomfv r;k aw,xj4/c 3lp;052akqthe same material. The length and radius of each resistor is: a*,rmaxvw cka0;lc/jko243 5f a z q;p
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 connecth3ino :cbb(zt9 q .h5sed to a battery in the following way: “Two resistors are connected in series. This combination of two re5b3 zsib9(.hn ohq: tcsistors 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 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 accompanyin8y a8abpz8lt wp))ga uz g;-5rg circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmetgpy5)g88p-tawr uaab );z8 zler 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 .-np ; )qsmm8vpbauv-circuit shown to the right. The three bulbs 1, 2, and 3 - represenbqpm8v)- mu-v n.sap;ted 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 electrngb4/jra, 08fa.qzx+eiu 0 r;grq5 hcical circuit at the right. If the current in all three resistors is equal, which of the following statements must be true?r.aj/zuxi0fn0c8qq h+rge ,4ar; 5bg


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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 simpleu/y7n 2lxo:ar,p4 pfc d75oxg electric circuit composed of 5 identical light bulbs andco 4p 7xlad,fup7/x5y nro: g2 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 state y4(bi uoi ymk.lgjh*m0b261f ments is NOT true concerning the simple circuit shown where resistors R1, R2 and1hg2.ly4omb ym6*0jbku ii ( f 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 conne cevybu7;o d4)cted 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 othec ) v4bud;o7eyr 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 identified resistor i9j+tbzlrly2ot71 )s v n 5 seconds once the circuit wasb9j+ szy)lv7tl2o1 tr 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 th/+xr)v l, pm2wd k/ ha8nl9fgse resistors in the following simple circuit have the same resistance, 8v dl hn92//gw)rmfx+sa l,pk 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 diaxo dlqq+,r65vcm w r/4gram, the current through the 6.0 Ω resistor idr+ orm /5lqc6w4v ,qxs 1.0 A. 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, and R3 are connected in n*x upovi.:h v8 29kkoz ytu71series to a battery. Suppose R1 carries a current of 2.7:u*vxp1 . ovihk2z8 tynku o90 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 parallel to a badben ny5bm09tbh4 q;/ttery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cuh5; dbyn tb /q9b0en4mrrent 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. Wha5b 6x8lez46wytho62cx 3lz ty t is the maximum value of thet6lb6l6e x tzx82hyc5w zy3o4 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 0.uff3o yucd kao4d7(;/, joklv xkb 9to operate at 120 vo9.ucka0(3f ub kdo7vj ofy/4 xo ,lk;dlts?

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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 disslby3e*) g/yvqipating 36 waqyvy)le/ 3*bg tts 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 usq8t mnkhd7vof6 im91.ed to press clothes is marked "120 volt, 600 watt.” In normal uik9t1 m d 78.vqh6omnfse, 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 wv5de 4e* w)cgresistances could NOT be produced by a circuit containing only three identical 6Ω resistors?)w wce*v5 egd4

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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 equ)ti-p,a )cxdt +cfn5eivalent resistances CANNOT be produced using all three resisdt+pn5e,f xtc) i- ac)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 different values can be connected t(4rwh7;d2eus ck yif;ogether in different co2frwi( sy 74;ckuedh ;nfigurations. 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 connected to a battery, a tor 1ppy:vh2v24 v )r2huwn6j*jyqhm7 utal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Ass vy*7:hrj2)qnurhw p 2jy 4vh1v 6p2muume 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 resistance R1 and R2, are connected in paral j whcr(1, abis./r2pzlel, the equivalent resistance of the combina izrh.arc2p ws,(b1j/tion 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 r7bzu, xnm9la48 n q3pdpa2jq; esistance of 12Ω when operating at 120 volts. What is the minimum 9 7up2mjal,p qqnx4danz8 ;b3amount 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( q d4(eqjy(gj y9bm4z flows through a 4 ohm resistor that is dissipating 36 waq(zyej9qdb4 (y( 4gjm tts of 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 he8 +7z1 ox-af1y yy,haho4ba cxater draws 13 amperes of current when connected to 120 volts. If the price of electricity+4 a1hhcxy 8ya fo1x ob,zya7- 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 mc;guomwf*x+ 3x j96t cost to keep a 100W lightbulb lit continuouslgxt c+*f m 6xwm3oj;9uy 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 in a poxjgmbu4- ic 3 as)5ba*wer of 24.0 W associated with the bulb. Which one of the following choices best represents the resistancemub 4gc3 b5i a*xa-)sj 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 a computer rated at 5001 , ,l5zhuwiuf watts in a 120 V circuit. If all computers are plu,u1,fl5 ih zuwgged 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 conne30 x+ia7r9ghw rgza8ncted to four resistors to form a simple circuit as shown to the rag+ni8 r379xw zar0ghight.
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 simp 9clw9n ie9z(tle circuit as twli9 c(z9 n9eshown 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 switch and three resistors (o vz m)fbm4k.g9z;mk are connected as shown. With the switch open9;bkzmo 4 .gf )mkv(zm 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 switch and three resistors are conc nszhi i9y*b5 cdi5:fk fb2,.nected as shown. With the switch open as shown in the diagram th nc*yic2d.5:i95 bfhkfzbsi ,e 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 jr7y1 ee9 :iidare connected as shown. With the switch open as shown in the diagr ei7iy9ed:1 jram 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, whaturx4o .6.yi kq is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thry rq .ioku.x46ee 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 cir 6 5ytwh0:pff0drrcfz(5u0ld cuit shown to the right with resistancestr 0 5u0:dzfff 5c(wyh06lpdr $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connq zoq 9d*;kai;ected in a combination series and parallel circuit to a voltage 9 q o;dqi*zak;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 e5 zjuwv2lu)q 71;cs av2ajp6 a combination series vw 5l);2e 1zaqp76jua2scu vjand parallel 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 a y7/b0 e)dc r;epqpr y;1qfa-cre identical. Which bulb will be the brrc7 yr1;/ pdb ; -e)yqfc0aqpeightest?


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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 resl9pfuwhb,w2a 92yyp 7istors are connected as shown. With the switch open as shown in the diagram the amme2h f7p 9 2yubaw9,ypwlter 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 ide,ztxbheax 8th2/vy* ez,j + (xal ammeter, a switch and three resistors are connected as shown. With tjvtbe h,*z( yxhxx/+a,et8z2he 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 cm d)j 2(2izcady3i2f1je bj (ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diai id by(2zce jafj32 1(2d)cmjgram the ammeter 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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