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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 fr(lbk p64g i+.;frno the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and t;kbfolfin (. gr4r6p+ he 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 iau p)*2bhkw9qv;x3w ko*t bh+n parallel, the_________each resistor is thewhkx kb 9h vuo) a;pt23+w*q*b 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 through the thin filament m;a8 m24 kqtqcfylw +/wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the li lqa ;4+fkmt2myq 8wc/ghtbulb 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 are being replaced with LEDs. l2z c.2r *i1gn y h2xsus.3eiwp *u(aaLED is the acronym for which one of the following sac uyri.x2up ze 1hgl i(3as2**w 2.nchoices?

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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-sectional areaxv sal n;: q(g0j3rq5gepo4f* 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 resistivityl0a(js rx*fvqo:5e43gnp ;g q 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 thebom, 9ke m 6jutxs2;/ 7urxgb* same material. Wire II has twice the diameter and twice the length of I.,b x/s9rmxk*ug2e o b7 t6mu;j 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 ahx4yu:4f;ezy nd half tz:4hu4yxfye ;he length of wire X. 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 len nsh;s5v+x 5g tv+cg.pgth L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happensx5 +ng+ .cpgth;5 vvss 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 ulcnur q;0c7l sspp .64 s65vnbrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in0; .lcrn 756psulv4 u s6cspnq 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 material. The length(: r.(hjbxul sxzsn (+ and radius sh:n(u(zsxb.rx+( jlof 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 to a batteryum 7*akn.n t1,lzdlo,)l(smg in the following way: “Two resistors are connected in series. This combination of two resistors is connectedo.aln(,z tlsmm kn 7dg1* l)u, 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 resistanc 5;gblpmh+h:ae 10.0 kW and the ammeter has internal resistance 25.0 +;: bhahl m5gpohm. 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 right. The toq0vogsdibp b 6hf6qs) 7x:5+jqko:;hree bulbs 1, 2, and 3 - represented as resis6oh o)i7gq:fx5v so 6:+sdjb; kbpq q0tors 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 elh edb/:afnq:v1sr q2 7ectrical circuit at the right. If the current in all three resistors is e:q hrs bfn/217d v:aqequal, 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 electric6r+-t+k3. 2qjw wilum(jcre9 ) ejbvl circuit composed of 5 identical light bulbset+j.-b) ww2cku3+9qvl lrj6 e(ijr m 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 follq*a5 zlbd2k/c owing statements is NOT true concerning the simple circuit shown where bz5 dc/qk*l 2aresistors 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 ((b wp:flet w(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, which one of the following choices bes (fpt(:lb ww(et 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 tj3f.bz r6)zy ue .3vuyhrough the identified resistor in 5 seconds once the circuit wasru 3bz.. yfzvjeu63 y) 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 srax,ex orn/ ;g;t-4f in the following simple circuit have the same resistance, which wgt;sxox4e n/r r fa-,;ould 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, the cun,i*9db 3x lkwmrd0q+rrent through the 6.0 Ω resistor is 1.0 A. What is the power supply vo 0,dk+qd lr9xwb*mi 3nltage 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 seriesk3 5meujey8 dfi1p)i( /m z5nb to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistancfdj n 8emum/bz15p5( i3e)iyke 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 resiv:hc 2 lykv( ,zyd iw9.+/odfzstors R1, R2 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 ky,dzdi o l.hwvf+: z/ 92cy(vin 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 vollszi0cem ,. y,a5a:xnts. What is the maximum value of the current uaxln0zya: , mcsi5. e,nder 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 resi zts.hyp; cwud.to) h8h pt30.stance of a 60 watt lightbulb designed to operate at 120 volts? h8.. 3ht.u;0c otty hz)dpspw

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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 diss*0s7r 09wzs6u1vwjf0ixd6( dc jb gtvipating 36 watts of pow1 vr9cxb0wvss t dz00g ( i66fwud*jj7er?

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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 clothfeapg(wme1(l2l h bd;f2- a3t es is marked "120 volt, 600 watt.” In norl -f a3dlb;e1pet((fm2wa g2hmal 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 resistances could NOT be produced by a circuit coni9 jf (f 2c -3z(;r;qhrrjtulytaining i;f 2- r3uh(jr j(qf9 ;rlytzconly 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 resistopvku/e f.)kd0i /mry/ cghs..rs. Which of the following equivalent resistances CANNOT be prod i/.f/)k/vykr dmhs up..ecg0uced 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 va3iv)- yd-8/ kgfhju chlues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of tot--3/vg)u c jkhdi yhf8al 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 connectedvaz7lq 4f7srbsk3lea1k31 /q to a battery, 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 z3/q7a k s3 1fqabrsk4 lv71lebattery? 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 anpklqrol )f kdpd+- 5ff cmx)a;6v,5d7d R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about tvm, +) rc7dl6ad pxdpq; okf)f5-f5klhe 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 12Ωly5-;e jis 5a)dz+m 4nzyy 4ko when operating at 120 volts. What is the minimum amount of time that it would take to wa5yk)4z- ;da mlso4+znie yj5y rm 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 ohn+uj6t ,4k5 z 1ygh-pzfxacn 5m resistor that is dissipating 36 wak5ntp+ z 5ch,ygu1j6 nzaf-4xtts 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 120 vokvgig1 .ub0vh00uj 5 qlts. If the price of electricity i00kb 1qvvuuj h50ig .gs $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 a10hb8d b/9jfz ti byt2 100W lightbulb lit continuously for 1 yearbfjy2 iz1t/ 89hbd0tb 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 ;;vbr e0o hqy6A through a lightbulb results in a power of 24.0 W associated with the re;qy 0;v6 obhbulb. Which one of the following 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 family of six owns a computer 28lkrjlw o,u6zwq tb4 -yh k*(rated at 500 watts in a 120 V circuit. If all computeq lb -oyukj w268r,w*h(tkzl4 rs 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 four resistors to forjn 4 ,r6kh ke7g.cagv;-pem8 sm a simple circuit a re,6gm j.kch8 nkepg;4vs7 -as shown 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 four56, tu7cczb3s +jnurfn+ uqfat/:u1p resistors to form a simple circuit as shown to thq c nr,jna7+:p f+t 6c/bz51t uuuf3use 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 ideall v.asrr.k-71/l zqnp-l x l.u ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the dlz 1ax.r /-u7lqr-.lsv. pnlk iagram 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 a qoh6,.abycf j/lgw: jlyt990re connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperej9 jaq :ywl6y0,otl.9b/ hfcgs.
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 ammety 9wj(l +nm 5pkfj,tl*o 1tzt1er, a switch and three resistors are connected as shown. With the switc 1nk*j9 ,+ ltptjwo (lz5y1mfth 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 circurcsttwl 498z( y kal2 t:,;gpnit shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery9gtszktwt n8: ( cp2y4a;rl,l 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 th1 gxmu66zt mg;9(e q xbuxt4-me right with resistanc6u- bxgmxtm46x1;mzeug(tq 9es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cond(b7 p)s;mzpe - j:qmtnected in a combination series and parallel circuit to a voltage source.q(mp )me- jd;p:t 7bsz
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 sh5jfye,zh /6)np0 ihxi ows five identical resistors connected in a combination series and parai0j/i xy5zpfh, 6)neh llel 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 duqzm5o8b .pxl: oj-4x e5 dq) are identical. Which bulb will be the brigh 4)5p5:l db8u ex-ojqxomqzd .test?


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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 swga xohl7a,hb-2f9 *kmitch and three resistors are connected as shown. With the switch open as shown in the diagram tlx 7*b gahoa- hkm29f,he 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 swkds7wue ;92wt:vcwaw ph7. g(itch and three resistors are connected as s 2we a7 wspw;wu 7vthk:dc(g9.hown. 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 ammeter, a switch and thr0.h+pca5v hs kee resistors are connecte 0hkp.chvs+5ad as shown. 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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