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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, :x srhqgh91b. x:pw7aan electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electr .9 qrhbswh: xpg:1ax7on 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 are5sh0 va,jgee5p)9my k connected in parallel, the_________each resistor is th95phe,0msj5ayk e g )ve 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 thri qayar1pr2(4i4c4 lb+z(cr sough the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain murriqp 1r(4a4z l2c(+bc s4 ayich 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 being repl+(n )pzqg y.edaced with LEDs. LED is the acronym for which one of the f.+ndz qe yg)p(ollowing 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 len3braka; yl 07y2 11f,ccx ii.rnv:cmqgth 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. What is the ratio of the new resistivity to the old resisti c1lfyr c,: 7n3m2c;brk i.1aqa vxiy0vity 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 theh psfs1m :t ndn06q. g-.-odig same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistantso -qn-:m.6hsfpind.g 1gd0 ce

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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 halrr dxx;3 81jugf the length of wire X8j3 xx;gd1 rur. If wire 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 radius r. Th.g3k ze ff:2kyo bjcz, 6)2-4pp u/dgefap7 oyis 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 ooe6g ojf. :kg4pz pb z,yc7a2/d)-2ypu f3kfef 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 Edistj bzchhlf b2i, *8dg,j -g ed-)3sn,won wants to make a brighter light bulb. He decides to modify the filamensiggjdwb8c tf h3n* bl2,)de,-zh- ,jt. 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 the same mi9f zn. 7hmxg7aterial. The length and radius of each resistor is:7m7 xnfh9gz. i
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 res1mggfy 6hir ;,ewq13,gbpi8 vistance R, are connected 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 rpibgqw1gy gm,f,h63iev1 8 ;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 resistadxbycsaw z5q6* t q8zzs da+d/7 n b8f;z;0d+pnce 10.0 kW and the ammeter has internal resistance 25.0 ohm.+dz5;0;yd8w+b/a*dtpfqd sz zb7 s6cqa z x n8 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 compo .j-7m7d wac )g bac*)bzg7ebeund circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram d-*) gwg7ab acmez )c.7jbe b7
- 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 an)u oa 23eaiuh0;e/n-tv9ruht the right. If the current in all three resistors is equal, /n e3)e; 09touu -har nh2aiuvwhich 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 ixwsj155* paq vdentical light bulbs and 2 flas j px5*q1a5svwhlight 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 concerning0 o;.0h rpddqs the simple circuit shown where resistorsq;ph0or.s d 0d 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;c(x s a.ro*ag 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, wh*o( asx;rg.ac ich 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 throughiz;8l 3y-/xdobh6wq *c;w)u p;xo bdj the identified resistor in 5 seconds ocj;u owoqzx )b-xhplb3/6* di dw;8; ynce 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 resistors in the following s* tziuau(w. r2j7k1lhimple circuit have the same resistance, which would dissipate the greatej 2l *r7.tuz1hik(aw ust 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 throm s43ic.pr )+l ,piop q/wciz0ugh the 6.0 Ω resistor is 1.0 3ps/)rcip04o m+, iziw.pcl qA. 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 series to a battery. b7ws-0 bwgf(k0s1cbh Suppose R1 carries a current of 2.0 A, R2hwksfb sb00- 1 (cbgw7 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 R- db3 qiucv7: ocl0x(p1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dv7c-o(:x3udpq 0lib c 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 0 cdo82hc hpo3o/0amk*.b yda 1200 watts and 120 volts. What is the maximum value of the c3bao8a2 k/*oh yc0.c0d phmo durrent 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 js ./hkedst v4x74 rl-to operate at 120 volt7ske vsxt .4ldhrj/ -4s?

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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 thtea. l,8sbqp 9q h9fe;at is dissipating 36 watts of powef,e e ps a;lq8bt9.9qhr?

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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 ma b0q+x/aw uil.rked "120 volt, 600 watt.” In normal use, the current ua 0.b/iwlq+xin 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 produce25c-jxta:xfmdptdc21 /k 4d a d by a circuit containing only three identical:df 2-t1/addxp25 xt4 cj mkca 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 ou6y7vz1mj71t, i hk e.tdacj+f the following equivalent resistances CANNOT be prodh m.jjv+t,1etuki7ca zyd61 7 uced 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 r(,wb kux0om, :xalx.values can be connected together in different configurations. If all three resistors are used in a c.0brw(xok xmul,x :, aircuit, 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 total power P ik+ 8jr0 zgmlon8k.. j qn 79*)kfbmljqs dissipated in the circuit. How much total power is dissipated in a circuit if n identical9zofk0rl88.nkj q+jbkm)7.g*n jq m l 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, havingg *lt7wu+-l:bvx :d lt resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resi:ux tl:7g-l vd t+lb*wstances 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 operfl3 v2k82f tbw v*if*bating at 120 volts. What is the minimum amount of time that it would take to warm 0.vwiv b2bkt*3 f*82lf f45 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 ohm resistor that is dissipating jvm(iy.e uo* x cxmw7+:uui/* 36 wattsxv.+ ei:* (juy7uwm*moux ci/ 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 heater draws 13 amperes of current when connected to 1;+7xo mnbnyhfgf z;q( ftk+82 20 volts. If the price of electricity isf(zhtby ;gm8fn k+27;q fo+n x $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 cost tmo,c et7m9;unu0 u6ui4xd h/co keep a 100W lightbulb lit continuously for 1 year /4m;ueuuo0nu c 6mc9 x, dht7iat 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 lpg z 7ug-oefq: /m ayx4:fz8t:ightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the liy mz:etg 4q7u:fgf 8z:x op/-aghtbulb?

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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 ofdxdy bk5-6jl; a family 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 computers can be operating at t6j;kld 5x- ybdhe 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 connec.vu,*9y mo0ijuhoef 5ted to four resistors to form a simple circuit as shown to the righth9 uioj5* 0.mfvu yo,e.
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 resi8f b-cta3ng i09(sdkz stors to form a simple circuit as shown tnf9i g- (ca b0zskt8d3o 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, 82 s 8 glaklw84+c;ioelzh) gban ideal ammeter, a switch and three resistors are connected as shown. With t4gz+ge8 c8l8 ;oi kswh2abll)he 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 c d+1t(lrns, dideal ammeter, a switch and three resistors are connected as shown. With thetdrcl(1n+d, s 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an id/wc2*scxqy8 o/ 8biztdz h- :eeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 aw c/: 2b8-cs*ytizz/qx8ho e dmperes.
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 lec z(i8 qf:1l:4jo*mmxf,8ffj t 7owright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have iden w81 tfz (4*jle7:c:im8 foffljqox m,tical 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 v, mhe.ry0 .tu (k0bksshown to the right with resistancth ,b0(u.meksy.v 0 kres $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 showsa9d85 dm sh up( vj.l,9vfad*1a*jbge five identical resistors connected in a combination serdjbf uph*edj v m99,ada5.*(8la sv1gies 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 ide /od-6pyoy 3kqntical resistors connected in a combination series and parallel ciroo/p- y3kdq 6ycuit 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 are i )2u*nzcy byj3 t+p6s3usufe 9dentical. Which bulb will be thu2jse pybc 96)3 uszft3un+y*e 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 ideal ammeter, a switch and threnao34 +wf hjza .+.prze resistors are connected as sho+n.f 3zaj4oawp.h zr+ wn. 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 ammeter, a switch anduf )j sl db y6r:40cr7*wck+gycu9h7m three resistors are connected as sh4k7wb 0s6jc) :9lh cuyrd +m7gr*fucy own. 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 ammeter4lr33jgf- k qt, a switch and three resistors are connected as shown.qr-34g ljf3 tk With 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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