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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,0kf rse.p*5fmamda ,+ an electric current exists in the metal resistor connected to the battery. Which ferm5 f m*p,s.0dk+aaone of the following choices best describes 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 connecte6vzmh3/(xi(b6ldjgi gt1.f .tgo(h l d in parallel, the_________each resistor is the same.hh6j(3g.it di 1z bxgl.f o(6gmlt(/v

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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 lightbqe/30c xo g,ntulb causes the filament to bqog etx 0c3,n/ecome white 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 standard household li 1gudv;-h vz4dghts are being replaced with LEDs. LED is the acrod;dz 1uv- 4ghvnym 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-sectiona /spmalg1t:f/l 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 resistivg/ :ps/1tfa lmity 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 twice the b3nph32bs r s8c( d3gxdiameter and twice the l3n2rpg(hx3sc 8bd 3 bsength 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 i;6 oc -h8klu;(rvc 8joc)azitwice the diameter and half the length of wire X. If wire X has a resisu ;z)(; ij6 ar8li cckohv-8octance 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 k glpdeh4e*m.(2g3j.nv)pl.s wa6h4 6 o r kzgL and radius r. This piece of material is then drawn so that it is a cylinder with n).2 3ms4z gk6egknlh64podrwh pj. *lv.gea(ew 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 decvz vdqv7 ,qb(b*t39puides to modify the filament. How should the filament of a lightbulb be modifiedq(zbd bquv vp,v 73t*9 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 resist o ztyrz9y(6h2ors are made of the same material. The length and radius of each resisto(9zhyr yto 26zr 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 connec+mlo8zsacj1( ted 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 serie+8zm ljso c1a(s 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 diagrae; sey* ;mtmkvpkte7(g8x 7m,m has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reatgkm,7;ytp8 mxe ;evk7(e *msding 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 th2llv 0k59ld 05tkz vrmree bulbs 1, 2, and 3 - represented as resistors in the divmkl5 2klvz 95dr 0tl0agram
- 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 at the right. d39(zae dha d4If the current in all three resistors is equal, which of 3e4( dha9zd dathe 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 cird- sony*pcu(x( ywo /m,; u:)qmn(qiecuit composed of 5 identical light bi/(nmy;*,qn x ) :qwu(-cpmeyus o(doulbs 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 concerning tey3yl 3czmno( ,fq4xqgw :(/lhe simple circuit shown where resistors R1, R2 and R3 are (l4loxyyc:3, e(zngm3fw q/qhave 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 series to a bat:z0:w 2ptpwt r d 2qjo7e32j06npuftitery. 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, which one of the following choices best represents what tzwu6o2:0r0p 37:pfj jptt2de wnq2 iis 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 rr7w/qy+f v mj4esistor in 5 seconds once the circjw fv7m q+/r4yuit 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 resistor8c2j8 j )qzddus in the following simple circuit have the same resj2qd)88 dzjcu istance, 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 diagram, tu ;/y bbf;d+yxhe current through the 6.0 Ω resistor is 1.0 A. xyud f;b/;+byWhat 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 bxm,2n f dw+2( fux*uvqprgbiz03..gxattery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of powex.v,fgrx wq n0fb*i u mgz.(uxd3p2+2r. 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 connec q5d/ is hw(m9i,ykf3uted in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 d,9hwiqsdum f(/k iy35 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 1200 watts and 120 vol:9y/g ptz 8xrwts. What is the maximum value of the current undewy gzxt/ 98pr:r 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 resiuegk5z)-oc+ c stance of a 60 watt lightbulb designed to operate at 120 voltscu )co-gke+ z5?

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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 a9b6 dcht/6yo q 4 ohm resistor that is dissipating 36 watc6qhod6by /9 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 used t5bm u )7s7m0t yx.fhvzo press clothes is marked "120 volt, 600 watt.” In nom5 z7.tv 07) xhmbfuysrmal 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 resistanceog)8 w4psdy,q 7e i0,z xid)k)gdx1rg s could NOT be produced by a circuit containing only three identical dk401d,)izq y i)8 x ,)e7ggsxgwd opr6Ω 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 r.j gv,b;wp c(nesistors. Which of the following equivalent resistances CANNOT be produced using,; gcj(wp vb.n 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 in d1jk3fu f (x6haifferent configurations. If all three resistors are used in a circuit, how many difhj 6ux31fka( fferent 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 ax f sk1od15at9 battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n idasdk1f9x1 5otentical 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 R1 and R2, are nufe .ic(bf8s-a9em b irc1 7/;pk;gwconnected in parallel, the equivalent resistance of the co- kb1e irfnuf.cg i;bp9(8m acs/7 w;embination 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 : qtju*bi;2caa/.wdndesigned such that it has a resistance of 12Ω when operating at 120 volt2 b/d itj *n;u.aca:qws. What is the minimum 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 ohm resistor that is dissipating 3.jmq mr0i5a edsaep zg )773x,6 watts of powe7eam.3dgi 5m) zasx rej70q,pr?

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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 drawzfyq6jee c0rl)yr*/ 3 s 13 amperes of current when connected to 120 volts. If the price of ce yrylf* ej36z/)qr0 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 would it cost to keep a 100W lightbulb lit co3sf- ygfzft*+0v6 9gz qkt/sontinuosgf foq zsf6 t- /*g39+ytz0vkusly 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 cuqqec i9u.wzfrvf2 8yu,j2+ u:rrent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistayz9 ce2 f f 8qwuqvu:r,.i2uj+nce 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 familysyr2.o k)wvv ual/l;2 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;lkva2lo2 s)wy/.rvu 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 toc./dqk7 z) pamyky /0c four resistors to form a simple circuit as shown to the rikdc0yacyq mp. /7/ )zkght.
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 simple i*t4fhkwcq1- 9yi/ cacircuit as shown tfict-1k*yi /49h wcqao 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 threek lekw):qae rc68v 8)p resistors are connected as shown. With the switch open as seq )8cwrv a:k6)l pe8khown 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 switch0*hndl u;c tj0 and three resistors are connected as shown. With the switch open as shown in th 0nl;0h *jcudte 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 thr q gsu6;z1rs( t cxcje0n);sr7ee resistors are connected as showcgs07xsz;rsjc ( ut6rn qe);1n. 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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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 resistance? . bys 30fq:kwt Assume that wb :tkqf 0.3ysall wires are ideal, the battery 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 .u6ivzp r4f679 m t+yniwq2o4 p3nklq the circuit shown to the right with resistances 3vqz4pl4ik6 p tqyn 7.9u6woim+ f2nr $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combpklhzh9; +k.g ination series and pa .h kkphl;9g+zrallel 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 be6/uhgh 7w;nrmlow shows five identical resistors connected in a combination series and parallel circuit to a voltage 67/ h;mnhugrwsource.
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, 47p9dhqgfaw1 all of the bulbs are identical. Which bulb will be 4a 9pghw7fd1q the 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 battb6s by8vxlzf9rr o 19.ery, an ideal ammeter, a switch and three resistors are connected as shown. Wi6rv bf.x s9yzo8 1l9rbth 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 sw+*bu+ ngrpp0bitch and three resistors are conn +bbrp+p0nu g*ected as shown. 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 .oj, 8tttl;a.ry(l bsammeter, a switch and three resistors are connected as showns.t8(.ajo tllb r;,yt. 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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