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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 )jc (y4coiq,zcurrent exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the re,c ijoc()q z4ysistor 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 parally +ef2itr lo(1/q i0aonmd f22el, the_________each resis e+/tifqa1202 y ldo2r (mifnotor is the 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 qje yq37b5t/ 96dv-bds -vjg jthin filament wire of a lightbulb causes the filament to become white hot, while the larger wirey 35/qg-vd6jtd7vs j -jebbq9 s 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 lights are being replaced withq/ ae hty5 nq:w rc84,eak0bl)+oh6mxh 40ksu LEDs. LED is the acronym for which one of the follo/hhc00 smn+x4q,:kt)8 ey5w o64qu earhbk alwing 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-sectional area An-mm tc ,/u-0vniy tl:. 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.nlct/y m:-,tv 0muni- 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 m svfx g0(:pv0made of the same material. Wire II has twice the diameter and twice gs:xp(m v0vf0 the length 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 twice the diameter 1:sb4jn/ ump 4ex .4o-vvkxfc ap. /ixand half the lengp/i -c. xjk n4:/sexx .14vfpva omub4th 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 2p6 4qwlm6q6w x7z cpgradius r. This piece of material is the27qxp zw cg64qmwp6 6ln drawn so that it is a cylinder with 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 Thomafto9l ihb:b edyp6:(9s wm /(vs Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of aobiw t pl96bh:f sd:(ym9 (ev/ 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 material. The lengtmks x ::tof;hfm. mme4 hux2;*h and 4; smuo2:: xmhk;m*e .ffm htxradius of 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 hkcg69ti v.a8connected 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 the8vct6 kgi9.ah 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 circuitznls5; 4 wm/(kv8nob d diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mn4 w z5 bs(dn;ov/8mlkost 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 compowjh +x8z/4zeu und circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrzhz8 4ju /e+xwam
- 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 electricalb erxb7e ru.94*my 7jwxz :q7g circuit at the right. If the current in all three resistors is equal, which of the following statements must be true?7*eb:me qu7jg 7rz.y 9wr 4xxb


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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 atl8q+8-ymawx0iyu ) dr1+ yhq e right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cel8dwe lh+1-+ 8xyayymr uq) qi0ls. 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 fih ;(+,bhc (hlgll6zthe simple circuit shown where resistors R1, R2 and R3 are have e cfgh;, lh+li(6 lzhb(qual 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 cx7pm2uby8n v ,g,vu8a battery. Bulb X is brigu bx2,cgv,y 88vp7mu nhter 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 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 identified resistor in e:lx30 j;zf ra9ei1pk 5 seconds once 0jx rafz:k1iel;3e9 pthe 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 thr 8-y2gtcm- pse resistors in the following simple circuit have the same resistance, which y grmps8ct2- -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, the current through the 6.0 Ω rest( fdh j.mh2 p s+k1,vz6bmwe;istor is 1.0 A. What is the m +w6.;dvp s h,zt1 kfmh2ebj(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.qxk- svud d1u0 (q8em1 Suppose R1 carries a cu us81ud0q- mq(1vkx derrent 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 are connected in par73zz1u:t mwz tallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω: zmzztu7t3w1 , 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 /l8t *qcrtvxef3twys /r 7m.,1200 watts and 120 volts. What is the maximum value of th/rys 37e ,/8clttwqxfmt *. vre 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 lig/hk ,zls;i xme ,(*wupsffx3.htbulb designed to operate at 120 e fk/x(zm*ps;,h fwl.s i3,x uvolts?

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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 currw try5 8p 75abmtqw:7ukz*sl;ent flows through a 4 ohm resistor that is dissipating 36 watts of power?k lw; 8q5b s:tzuypm577aw*tr

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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 wnxce.dz4 5w24/xa g1 pjru4k used to press clothes is marked "120 volt, 600 watt.” In normal use, the current in it is1dw44xaz 2wk 5 ncjr/ ue.px4g

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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 resisthus;u l1w2j7gances could NOT be produced by a circuit containing 72g j;1wuhlsuonly 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 1.01xp fd0 4vpq;/a ,prqo Ω resistors. Which of the following equivalent resistances CANNOT ;0pp p qrv/,1o fqx4dabe 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 tog,(0*h.cxtto x;h xh* btui pi)ether in different configurations. If all three re)xihxthc;(, 0 t.*xutoph ib*sistors 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 connected to a battery, a total power P is aqr 5v.) )b kbylc7dv1dissipated in the circuit. 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 batt)r.v kv)qyc 7l5d1abbery 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 connectedgvd)jhd: gl 7t-r z+j+ in parallel, the equiv7 hz+v -d+r:jl)djtgg alent resistance of the combination 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 designed such that it hax42 /ebcb 7k3k(z enbj.t .m;dgsrn/qs a resistance of 12Ω when operating at 120 volts.ebnq c.7/k xn4 s/r(mbg2kzdj ;etb.3 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 tcg6 rlvyb)z .f 9i;w7lhat is dissipating 36 watts o 9 rgliy;vl.zwfcb )76f 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 heate u;k ue6-r:waqm8-oo ur draws 13 amperes of current when connected to 120 volts. If the price of electricity ise ouk6w-o8au;rq:m -u $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 73s ab p+rbi:;hyzf z*wjna:*would it cost to keep a 100W lightbulb lit continuously for 1 z ::w;yapb i* s+hbfzanjr7* 3year 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 4.0,r f (mlc br8 ,al.4-fzfqm f.;buwu6k0 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 resistance of themz;4rcb.f f,furm,l8k.awubl -q(6 f 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 coa-*(gcdhb;5;5a mzs)gd i k ugmputer 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 kam;sgud-c 55*bag)di hg;z( 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 form a simple ci;ak1 u;/ kf 9ww2g9kb6tq1v lcz jssl*rcuit as shown to the u9l w9lkqv bckk ;gs; 112/t *zw6asfjright.
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 pk ;izwpybu c 37 -hjug:ew1/mkwc07 +hx6p4x form a simple circuit as shownw:p0/k7- kc+ u1p 3zcmh7ewhxp bi jugw 6y4x; to 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 tgv:i sjyxl110 a4y 1ndhree resistors are connected as shown. With the switch open as shown in the diagram the amme 4a:vx iyljdy1gn1s01 ter 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 batter, o yusm+o3ogif/mu 78y, an ideal ammeter, a switch and three resistors are connected as shown./ ouymo msi37o+g,f8 u 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 batter9i.blb(*;.rtx h s t0ofv/r lty, an ideal ammeter, a switch and three resistors are connected as sho;.to(lbfh /.r9 bv ti*trls0xwn. 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 resis g du0qm+(w ctu.f*;,/vianhftance? Assume that all wires are ideal, the battery has no inter/0c fva+ n, ud.uq;f tw*gihm(nal 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 right with b/wa,o)nf9 mc resistanof )/n acb,w9mces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicalthd5 vc/g9d3 r(uk)r x resistors connected in a combination series and parallel circuit to a voltage sourc xhvrk)ct3ru/d dg(95e.
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 sho,c)1vmaqy 7ko3s- xny 4dpa i)ws five identical resistors connected in a combination series and parallel circuit to a vol-m ois,3 qyyna adk1)x) vcp74tage 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 thelver6i4m3p z0:8ea u t bulbs are identical. Which bulb will be the brightestvmetu0e 43zi8lp a6:r?


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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 i lr;-(y5qdwt nf7,bwedeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2y tfrld(b, e;-q7w 5nw.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 x6;y0tj, 2 jc2pgjh7ectyk5s ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet 2k hp6t0jtcjs;e5,cy y2 xg7jer 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 relv0 lf26/xwodx/feh wu,i9 2dsistors are connected as shown. With the switcfxdle0 ,/6fui 2 v/o hl92wwxdh 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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