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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 resistdvvq mi).i ;j8)+ci ckor 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 inter+qmk c jvvd)8.;ic )iiior 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 ro3wnyn()up t 5c8oj/ xesistor is the sa/con )8un (p3y jwt5oxme.

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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 lightjf 0i8lllk9ipq 0(o9gx ,r x/fbulb causes the filament to become white hot jfo/xp0k,( riiql 98lfgxl90, 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 standard household lights aoak , 3tdvj rxcn(b2wt3.w4g6re being replaced with LEDs. LED is the acror, 3 tn gbvo3w.aj6w4 ktcdx2(nym 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 resistor has length L and cross-section+a.3k 2dab+4gkduv nmal area A. It is to be placed into a circuit, but it first must be cut in half so that the new lengt vd 3kad abm4.+g+2nkuh 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 sq/iic4 pkh,r6x5qzbz9j 09 hmame material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II haqczjbm9h /90, 6khi5qir4 pxz s 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 hs; 4;t .* hnfha4vwkptas twice the diameter and half the length of wire X. If wirktt.4fp vh4;;asw*n he 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 l3d map8:y6mienqy(hibg3t / w 6i-r 3pength L and radius 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 material because of thit n ymhm3r/ ei:qy 6pdwpa63g8b i-(i3s 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 azjm)nh2)x /is brighter light bulb. He decides to modify the filament. How should the filamenti))z/ mhxn2js 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 arp*y ufv. zjs-4e made of the same material. The length and.-zsfuvy pj*4 radius 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 resistance R, are connected dz7fw55zhjrw l9c+h ;to a battery in the following way: “Two resistors are connected in series. This fc;57 9w+hr lz5 wdhzjcombination 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 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 resistf:e 9q:cekg6vzue653 g omlp/ance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Them:z u6f gp9: kcov/3eq5ge le6 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,e) bhz,at8hj0s 1jmk right. The three bulbs 1, 2, and 3 - represented as resistors inhbks,t 18,hje am )0zj 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 elec0guu-:nh6cdl qi-, zbtrical circuit at the right. If the current in all three resistors l 0b:nu6ihq z,--ugdc is equal, 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 representsan2 )v,im0a7u k a 24jk,xe2oc zimif ++q4bfc a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (ka f o+u m,2)424xv i0 cqaanm2ezjkcf,+7ibior 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 statnvu/ch4ac9vpm,w :e5: cy(c gements is NOT true concerning the simple circuit shw:v /9(y cv ph,ec 4mcngac5:uown 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 connected in serie :uj cqubut 7o3s9zq,7s to a battery. Bulb X is brighter than bulj3utq7, 9cus b:u zq7ob 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 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 thrdd;hdd( 51lnl v 5bpr:ough the identified resistor in 5 seconds once the circuitd5b;5 (np:dhrd dvl l1 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 e ia5:4t rb9 bxf+ii1d the following simple circuit have the same resistance, which would dissipate th1ibtix 5d4+ :erabi9fe 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 curr1j9 y*y /pdfiq4+ gvpdent through the 6.0 Ω resistor is 1.0 A. What iqgy9y pfdv*j+/ 4ipd1s 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 series to a battery. S0jihf .ghrs.1uppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of powerr .s10 g.hhifj. 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 parallelynt. 5i3/wf ox to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dinyx5/.f to3 wissipates 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 the maximum +y9z4 vxk v3fivalue of the current under tv9vi +yfx3k 4zhese 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 (; xa/we*4 aq(klmincof a 60 watt lightbulb designed to operate at 120 vo/( laian *e4qmc wk;(xlts?

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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 thatk/)2haqs s bn7 is dissipating 36 watts of power2k)h s7/bs naq?

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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 marked5) y g hmg3:xk;ugp,oy "120 volt, 600 watt.” In normal use, the current in iux gyophg3k,:)m5yg ;t 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 followiu*ce 1mr ujamsv:,k2+ng resistances could NOT be produced by a circuit conta uruac:,k2m v1+*jes mining 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 thqj)0 rmes*v969ucs pmree 1.0 Ω resistors. Which of the following equivalent resistances C6pr) 9scmmev j90 squ*ANNOT be produced 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 resistorwt n7q-b ) ap7+aw9ur3egzz0 ws of different values can be connected together in different configurations. If all three resistors are used in a circuwzb 77waz +-qrpu)eatgw 03n9 it, 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 batt x(2a d+die1-ya e bijlno5go2lm0 8/4:znzpzery, a total 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 batt+ (5ladg-nai :my2i41bexz 2ejn 8ldo z0/ pozery? 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,7a9 nttn2-tlk having resistance R1 and R2, are connected in parallel, the equivalent resistance of2tk-nt tanl79 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 resistance of 12Ω when myywg6pj .w/bt84 3hp operating at 120 volts. What is the minimum amount of timet 3p 8pyh 6.m/wwgy4bj 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 kvzusv;+v a)ipad (;(4 ohm resistor that is dissipating 36 watts +pvvd((a); zsik a;vuof 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 drawsw6j6orozsz;:m6q tprynb; g z* r):;a 13 amperes of current when connected to 120 volts.t;6:;p6:oaz*ysmgj nr r)oz rqb6 ;wz If the 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 howj zqnn .lmdiptn )l4xd:qm * *8w2dn1, much would it cost to keep a 100W lightbulb lit continuously q 4 qd8n mdjwl,p.*t:1 lmn*)xdz n2nifor 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 p:n- +maq:n*2 l+9nd sbvgh sfgv(/ mzhower of 24.0 W associated with the bulb. Which one of the follovg:+ mn nvf+mghab *l s-h d2zq/sn9:(wing 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 of a famiiz*p8,knxf1 6-ax1 alngnl6ily 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 the maximum number of the compxp 6fn*naaln 1,i6g1-z8xi l kuters 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 resisne0 ih4u7/,9kij fuln tors to form a simple circuit as shown to the riglei /79 jik0,fun4n uhht.
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 to5bxc4 ve7n);zg.fhwm* v xe3f four resistors to form a simple circuit as shown to tv fgvfxx5m3*zneh7e.)c4 ;w bhe 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 swi (udky+y,- dokj ky(t,tch and three resistors are connected as shod jtd-k( k+y(yuy,,o kwn. 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 idead8x9oc lb3+mcl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp3old 9 c8mbxc+eres.
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 are kq)mc9(v izwf s(usxl97 (.rbconnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperezl. (9i()rv(sfkubc m 7qsx9w s.
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 resistanl 1 h yxexwqg..):g:pzce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical r1zg)pq:e y.h gw.xl x:esistance 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 they :zl qo*(wyii:ed3i- right with resista o(*ii3yyilq: ew d:z-nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica8 x2s(am s:7k ktuteeas0-( zpl resistors connected in a combination series and parallel circuit to a voltage2zm-x8 tatsu k(ska eep s7(0: 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 connec bqsc k/b3k04*iq* jj 5z8alrbted in a combination series and paral/j4b ijs8 bl* qqcb*05a3 kkrzlel 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 diwr-ygy2 kdf7 4agram, all of the bulbs are identical. Which bulb will be thefyrd4w7-g y 2k 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 idealwy87 wtkuzepp4v0 al6 o8 -ut9 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampto8a 0 pulw 6tw9pv8-zu e4yk7eres.
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 thre/icrj:43k5dzsn m2 gye resistors are connected as shown. With the switccrz/y:jmsk3 2in 4d5gh 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 resistoy9 c0,5kowpbsn5:yl t rs are connected as shown. y nstk55ylb:90 p,cwoWith the switch open as shown in 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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