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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 resif9 q +lemg db6h4f5j4hstor connected to the battery. Which one of the following choices best describes the direction of electron flow54 gehf4hdfbm qj6+ l9 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 conneczlokq o+x-ne9 w z8;,vyy2hn*ted in parallel, the_________each resistor is the saz-*o +yylznn8ox,wk 2e;9 vq hme.

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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 lightbulb caud5 mtnhsv2 +-a8 f*vvases the filament to becomev 2h5ntd*v +8sfaav m- 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)2uwar ;wjef4 lights are being replaced with LEDs. LED is the acronym for which one of the followinguw4w) ;ra2je f 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 crosg) a 9pu7lk.fuklrlmj/lz 3fyb+h/9 2s-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/p z)a2r.fl 9b f3 lujk7luhgk9+y/ml 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 br.- 4xoqww 1zmade of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resista4w1xwzbq .r- once

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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 o,xmnbqj; sxt 2u +7;5yztzc:u f the same material but has twice the diameter and half the lengc 5m tq7b; xuxszz +,ujt:;yn2th 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 length L and radius r. This piece of materi jih / m5m15zfutm2)rual is then drawn so that it is a cylinder wit ruh)tm1/m2mujf 55z ih new 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 want ic5cggr(+vqmu(d e-t u ,/ej(s to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more ,irc(c5u/-(vqm(deggju+t e 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 ary/du(abqr2y,ye7ifw6 7 z qem5; k6icej*o t+ e made of the same material. The length and radius of each resistoi,7df6eck b*/7 62 ztq;q re(o+ey ajum5y iywr 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, eachnnx j 9ix)+cmd4 o02ym* fi:to of resistance 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 resisto* f9nxiojm0 y:xc +t24 m)ndoir. 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 circuiaysl3 zt *u(m)6: yipdt diagram has internal resistance 10.0 kW and the ammeter has internal resistance 2l:adzt p3 m()i6u *syy5.0 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 right. The tkyh0p; 3o5l9b qu(fok hree bulbs 1, 2, and 3 - represented as rykpfq0k59(l uoobh ;3esistors 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 electrical circuio6 wilg4xik d5 +x-y+ct at the right. If the current in all three resistors is equal, which of the followin5y-id+kl +o4xgix cw6g 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 5 mrvnra shc )f. :e/mvu02lnau 1d-4pof 5 identical light bulbs and 2 flashla u vmur.1vap 542mrn-nf0 lch/d)e:s ight 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 si 3icpnl,+z 0db8yg5tlfrt 0on+,zxu0mple circuit shown where resistors R1, R2 and R3,ol+ y,fbc zputg0xnn0l08 t 5+r3 zdi 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 series to:-u 6z/r ldz/;cvw ccw a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are i:zd /u/cwl;- cz v6cwrdeal. 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 through -z bg x.1) w.:fesrysqthe identified resistor in 5 seconds once the z. y)- r1xqg:febs .wscircuit 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 simple ciro- jq4p/ofjl6 ee y0-rdxu3x)cuit have the same resis oq e-j 03d6yjp)/xxr4eflo- utance, 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, theu-, m* .7mg2txxtgqf n current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltau. t7m,gfg2mn t-*qxx ge 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 connea6/n mbo3gfd:tr q7*xiit; hzj/l d8 1cted in series to a battery. Suppose R1 carh8o6 /:; 7 dnqz/dt1xlifa3mr*jt big ries a current of 2.0 A, R2 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 R1, R2 andR3 ar.pfota 8/3qoie connected in parallel to a bataoq/ .ofp3 it8tery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 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 isa.bxft 6z18rh 7:zcm wua;a9 l the maximum value wrfmc:abt h 1l x9 6zz.aua;78of 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 60 watt lightbulb designed to opcjo7(d oe) rm )*gx4yierate at 120 4( 7oxm)jro* cd gi)yevolts?

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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 resiv9m+yahaov9z4mgiv/ vhu,t 1-r s4 ; pstor that is dissipating 36 watts 9 4vrhg4-vov mp+ tayh9iz,mv;1 a/suof 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 to press clothes is marked "120 volt, 600 wat /:axgo 5b13hxs /zntzt.” In normal uz xtas /:o5/xzh 1gbn3se, 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 o:7w8uh; shuw8 g4y vn jomytjn7m*)ym.+cg+could NOT be produced by a circuit containing only three identical 6Ω osuww;hht88m :.ujy)* m n7ymc7gyn gjo+4+vresistors?

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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 o//s,:n9vnnf(gh t vg bvk)x9rf the following equivalent resistances CANNOT be produced using all threeg)k9 g,v/b/h (s: vvnftxn9rn 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 diff tj hjgd;1a8obpo,3rh vw+7g2erent values can be connected together in different configurations. If all throohjgr8jd 1 , pbw+tgvh7;3a2ee resistors are used in a circuit, 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 co,0m-/xt.wmv1x3hj sqit q ;une:7 txt nnected 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;x7txmtshequ0,jt in x.qm 3v -w1:t/ 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, ha1t / umyt*e*q2d umrlh53 zu*cving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corredr2tm tulu* z15qu y3*che */mct?

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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 -n)1s.m8g)i tt /wozh eslfl4when operating at 120 volts. Wltw)os 4i)/- fz81htmsg.e n lhat 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 5edplf5jr11: e eef-q flows through a 4 ohm resistor that is dissipating 36 watts of powee5e-edf15 qj1rfp:el r?

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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 heatk y4syc5j b.brn h028cer draws 13 amperes of current when connected to 120 volts. If thjcr5b8k2cns4h 0y b .ye 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 would it cost to keep a 1p2uyly 7pz8w35 xo1n -g, juor00W lightbulb lit continuou5y8yow, no l3rgzx27j 1uup p-sly 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 re qe )3avma+js5sults in a power of 24.0 W associated witmaes5vjaq )3+h the bulb. 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 )yyz9,w wths, i4oqlpw-55re 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 amperwi 59lyzwsop w yet5,)q,4h- re 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 battb7 .m9t lpsavlgf*w9)ery is connected to four resistors to form a simple circuit as 99.ab mlwf*tg) vpls7 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 fourkc7j p (wev;k .y qzz1u+m-q 486ttbiz resistors to form a simple circuit as shown to tv qtm ebk . kqtwc+yj6z7;u481zz(i -phe 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 three+pw;g111r.0wk k ayu2ng l2jn vik-xa resistors are connected as shown. With the switch open as shown in the diagram the gnkknp. l r1gv;wjax11 -2uawyi0 +2k 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 red tty((u9mssv3:-kq ysistors are connected ak 3u yvqs( :t-yd(tms9s 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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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 aref:3t g6lgqg/fe to0.swn.s b+ connected as shown. s6ft. g30ws/lft e n+b:gq .goWith 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 righa7p+russ)gxz4e1m 8o2p9fwk* 2d rvbt, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all 8rr 247w bxs9sp+)z a1*vfpu kogm2edthree 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 circu.f. lu yu2nzxar3 *4zsit shown to the right with resistaxn .z.2u ul4yr3*fzasnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conne, klgwit5wxv *r--p. .-jh (y:tcnh lncted in a combination series and parallel circuit to a voltage souvlhk( t*- .nwwc-h j:n pxil,r.y g-5trce.
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 fivemvi (g 8g 8of*7i3ol/rbm07sxuyv :n o identical resistors connected in a combination series and sibn7x/ (o0m:7lyuoogmi8 v 3fgv* 8rparallel 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 o1 pyy*bt) jq6d07g lggf the bulbs are identical. Which buljq7gdp6tg*)byl g0y1 b will be 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 battery, an ideal ammeter, a switch and 37q,b3etw l)smbv*a qob1y0 d three resistors are connected as shown. With )oeqltv1waq bm dsby,7 3b*03the 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 and three rs+nhy 1 nqut+9qa8)laywtrkp* 3 o(/z esistors are connected as shown. With the switch open as shown in the diagram the ammeta hq/q)s+n wn*1yo(+83tt lkpzyuar 9er 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 resistors are ck*k(6o +zpehssm 5 6s fvl;hk6onnected as shown. With the switch open as shown i6 6pm 6fk5*soh vsz+(hkekl;sn 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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    总分:50分 及格:30分 时间:不限时
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