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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 curretk kiziu- oa24dx 1,,srb9xe5nt exists in the metal resistor connected to the battery. Which one of the following choices best de9, urok,1bkei4zx -as t2d5ixscribes 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, thak:kn);wn3 3su, tpi ye_________each resistor is the same.:)ai3pysn kn w,3 ;tuk

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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 filameq v )n.alq1x,k4 botq0e:t7ahnt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becaush7vkq1x:,)b la o04etq na tq.e

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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 repy-hsfkp9(w h2)jpb x0laced with LEDs. LED is the acronym for which one of thb-kx w2h9hsp(0fpj )ye 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 ojfzq:x(tmt m 4+2a-e graphite resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first24m-m( ax t:tqejf+zo 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 II has twic 2t3yzy4x8wyxe the diameter and twice the length of I. If I has resistance R, II has resistance 2tywy8yxxz3 4

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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 and halfs6 ul5 1u*mrdo1dvr. n the length of wire X. If wire X has a resistance of R then wire Yd1 mu*5olu rnsrv6.d1 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 materke/ g2dzs (, zf4wa.heial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thiss z2w.a/4kez,hf ed(g 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 brighte--qpay9 m2bsar light bulb. He decides to modify the filament. Ho -qmsb2ap 9ya-w 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 the same mateawmi7mh4 u o1f gdyw09u7ur83d:a; vvrial. The length and radius of each resistor ia;a w7vrmo9u 0:4di8vw1dum hg37 fuys:
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 connep4y v9od5tar0 u 6k/iacted 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 0 o6pu59ad r /k4vtaiyof 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 resd(,b.+7i r 4gm0qbry zt l-.wp qgsuv*istance 10.0 kWmg-qwt pg,i b 7ysd0.zr+4.rqu lv*b( and the ammeter 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 ri /j8*a58vasu0 mof j5jm.lljwght. The three bulbs 1, 2, and 3 - represented as resistors in the diagram 88aj m jv.fljwuao55/lms*j0
- 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 e 3lp4z(ufrzr ( ,ri(ozlectrical circuit at the right. If the current in all tp(zr(lr i ozz(34fru,hree resistors 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 represents a simple electric circuit composed of 5 i8-) 5raj rgb td0hy8yy d1zd pa16htm(dentical light bulbs and 2 f d8r jp1-tt6y h0ay(8hma d dgbz)yr15lashlight 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 concerning the simple cislrn p,7p2kfdurx:i 6 q4)nq,rcuit 7x d) prnlpkqrf4sunq:6,,i2shown 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 ah7jm:*pfu n4 undY 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 sanjumfh4 :pu7* me 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 id/rl05 *muinalentified resistor in 5/mr lnlua0*5i seconds once the circuit 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 e1sky-rnsmhg2w 4*p du2ay 76 resistors in the following simple circuit have the same resistance, which would dissipate the gre1 2peryah-*m2dyksgu s46n7w atest 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 current through the vie6;ylg pto3c6o4 )4v0 onub 6.0 Ω resisouv tvl6;nye4)obo4 pc3i0g6 tor is 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, anx5,13a9s -s-v +8br v kzriq axphr4hbd 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 ah5 rra 4q k 9b1 3zsihxb+-xrvs,v8-pthe 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, lvou/ems8t 6:x.lq p 0R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current iel0mt8 xsl.u :q6/ovp n 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. Whyzh mdo0autte,c5nxt ; 4zu9,4zz3;y at is the maximum va u,z4 zxe3;c9zoty4a0 n,5my; ztudhtlue of the 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 6 b+-1si iydes6 1al+wb0 watt lightbulb designed to operate at 120 b1bid-is+ +a 6 ws1lyevolts?

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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,;0t tsh5z9 jhe3guggistor that is dissipating 36 watts of puhg35g;jg tsh09ze, t ower?

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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, g i;(ccs)xmrgd88*m0jjh8d +fms ;x x600 watt.” In normal use,gmxm ;*jc8 8+xhsgdji f; dxsr8 mc)(0 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 circuitk(9ro7f8jv )oin zrw 9 containing on9(owk7i)9n8fj rr vz oly 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 equivalent r9jce: x:/yvxk. i3fkresista:i :.x/fykk3jvx er9 cnces CANNOT 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 resistors of different values can be connected together i:5 6 umcnkzwvy ip:c0q:m)v.gn different configurations. If all three resistors are used in a circuit, how many different vamvzcg:0:5c)nym i . u:kqp6vw lues 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 Pguay)5u; lh h3)kh )pv is dissipated in the cugy)5) h;v lakhhp)3uircuit. How much 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 resistors, having resistance Rz bjpa8k,1p s;1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is ca,pp kjz1b8; sorrect?

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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 eb hn3p4( jm5fsuch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wap5(43je h mfbnter 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 tg8uihu6a: . kthrough a 4 ohm resistor that is dissipating 36 watts ofuk:u8tag.h i6 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 6z15 nhq i1xslamperes of current when connected to 120 volts. If the 1qi n6z51shlx 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 how much w+ igb owx 0qzfh3 -fwyuxt;-/i/u;v;fould it cost to keep a 100W lightbulb lit continuous;xhq0uoyftxz-/f uw-ig v3w/ib;f + ; ly 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 power of 241u 9q w+ j 2a9e+rq(kvaolul)d.0 W associated with the bulb. Which one of the following choices9)1uudw q+j(9 oq+2 kvearlla 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 a computer rated atb05q7 i1vic 8xym v0vt 500 watts in a 120 V circuit. If0v 7tvv5x8my ib 1i0cq all computers 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 fourddk aw+54f (wy resistors to form a simple circuit as sho +wdka(5dwy4fwn 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 fourc6 adxea;hus0j/. j* g resistors to form a simple circuit as shown to the right.gc;xj d /6*sajhu.0ea
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 )67tzwm*,pxtbu3s kf :qw/ rlideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re*r3) w/ 7bzskm6ftlt ,:x quwpads 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 -qsnf047ioekm u9 p4gammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r9 kie u-go4nps70mfq 4eads 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 92e+ slm(ge ptare connected as shown. With the switch open as shown in the digms9 +tep le(2agram 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, wh .+lptd2 jpjs9u3tul. wk6ab f (ze8u;at is the equivalent resistance? Assume that all wires are ideal, the ks.tpl+uj9da(6 u.eb2 fujz3p8t ; lwbattery 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 righnxt * h5v1zo4qdkj 7xzsfl5 7+t with resistances+s77*qkotj f z51xnv4l x5hdz $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identkz;8 /g 6pift:lik 2, hd7q ;tzwic3dpical resistors connected in a combination series and parallel ciikip 8dwf; zg6tpc lqt2d73 /;hkz,i:rcuit 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 idez 5 cjk7jw(0cyntical resistors connected in a combination series and parallel circuit wc z0 5jy(7jckto 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 are id4 /mrjg-z cg(8sm.l3a*nvkqj9nro( wentical. Which bulb will be the brightest*z.( 4a3nmv gn /rqml(j8ojc9gwkr - s?


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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 sj ;d9:elk tb,ad; th9dwitch and three resistors are connected as shown. With the switch otj9bd9;l t;kahd d,: epen 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 ammeter, a switch and three resistors are c+szf;vig y1g 3onnected as shown. With the switch open as shown in the diagram the ammeter i1yz g+g3f;svreads 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 batternw/ scu45i: lyy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp5i/4uy: cs nlweres.
When the switch is closed, what would be the current in the circuit?


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