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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 resislczpsy ;t6h86 tor connected to the battehp yl;86tczs6ry. Which one 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 res s2b9s29bnewg istors are connected in parallel, the_________each resistor is the ne92 2wgbb9 sssame.

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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(7jz) ka0 +zfpc t;pqw filament wire of a lightbulb causes the filament to become whiz p) wz0(7 +jqcat;fkpte 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 lights are beie t w978ux0irgng replaced with LEDs. LED is the acru97 et rw80xgionym 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 x1; xyms v*nd5has length L and cross-sectional area A. It is to be placed into a circuit, but it fd1 ;yxs*n5vxm irst 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 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 ofo6 ju aei sj +-153dj:/zupnrilx80 is the same material. Wire II has twice the diameter and twice the length of I. If I has resists3l:/ij p0uno6e jai u8xsi1+-5zjrd ance 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 o5p izqaeok.f/(.j+jwai ( y +qf the same material but has twice the diameter and half t(z .ofjpqqkwae 5jy i(/ +i+a.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 length L p bg2lwblv0/8zwn jos .5 c+u(and radius r. This piece of material is then drawn so that it is a cyl(5. pco02 gz+ jbl8nwbw/lvsu inder 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 Thoma)-tjm p 6un:+h)y)hk*0kj k sa:lgmwvs Edison wants to make a brighter light bulb. He decides to modify the filament. How should the f*)a kmjv:)hjw:s mpky+)- 6knlghtu0ilament 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 cylindricaqt 6xo *;ie*qtlpv(6(qi2j vll resistors are made of the same material. The length and ra *(pql ; jl6qt(ot6i 2*qvexvidius 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 connehf0bynp;y*nk :4 /nj j g37nwxcted to a battery in the following way: “Two resistors are connected in sewnn */3j0;xpn:bf ngyyk4j 7 hries. 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 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 c xa-lzsohe6196 xga0diagram has internal resistance 10.0 kW and the ammeter has internal resistancacl9oxa-0 16e6gxh zse 25.0 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 cllvs ;9hs 3nnp l6-6zjompound circuit shown to the right. The three bulbs 1, 2, an 66ls9 jp-l;lvshzn 3nd 3 - represented as resistors 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 cirw/t me0 /rhzn0islk6* cuit at the right. If the current in all three resistors is equal, which of the fo 0hn6sr w/lem/0ktz i*llowing 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 zuatn3 5dh8c8 z ,f7givu- )rwidentical light uizaw- ,v88h3t5urndgc 7) zfbulbs 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 concernin:mg** s .r fwop.l kix0h+hg3qg the simple circuit shown where resistors R1, R2 and R3 are have eqhrh**xgp.ols fq+w .0: mi3 gkual 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 Xx5+ *tru m.rtm andY are connected in series to a battery. Bulb X is brighter than bulb x* m.+mr5ttu rY. 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 resistory)cyra:i;enc78kbuh h: -qm* 2xgvz 1 in 5 seconds once the kcbz hy-nqg*x mc: 8hur7) av21yi;:ecircuit 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 cpjaah v pofgu /5wvd-m q24j+1:,e ol+ircuit have the same resistance,flpd v-o/+5e 2jm g4q a1 +ujawv:ph,o 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 circui3 i p0omziv-kw7ee++lt diagram, the current through the 6.0 Ω resistor is 1.0 i0 ee+kw om3z+7lvp-i A. 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 -.cpm z i7ji6kz*;tjx, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.ji6*; kz-ti xz7.jc mp0 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 ac2g uo6)a1 ppoals2ambz t*01 ndR3 are connected in parallel to a battery. Supposea*ts1 a21za0gp)opl6 2bom cu 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 ise*x 8ms-fc d0m rated 1200 watts and 120 volts. What is the maximum value of the current u08mde c- m*xfsnder 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 opegof7h1jyz xqj+)s/ka +6 nb;z r4g3vb rate at 120 vo r bog;nsj3+f7 zvkxygjazbq/h 4+)61lts?

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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 dissk:bf9jr1 wzj 0sg 8jm8ipating 36 watts of kjzrs w fmbg80 819:jjpower?

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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, 60 b okms0dbf(3rp*9fk,o4 ,xm y0 watt.” In npfx yrsmo0( k*9dmb , ,fko43bormal 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 ben/( uc2 isxzorr1;t gu)fotl0;d(dz/ produced by a circuit containing on of1sut ud)( d; 2r0t/oniz/r(lz cgx;ly 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 re,a-7d6 ycza(qtjaoqb2 w.o*,y wah k0sistors. Which of the following equivalent bya,y0a( tawq7.,w- *o6dc2 a j qzkohresistances CANNOT be 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 diffeb+fr u) scu4t1.jk9it0t+h0do hml)v rent values can be connected together in different configurations. If all three resistors are used in a circuit, how h)0.th)ljsr4 tfu+b9k0t +d v mco1uimany 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 totaejmt cww4f 2wbeoko572gr yen,3b. ;3l 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 battery? Assume the internal resistanc c,g4t3jkbnw27 bw;woryeo3 f.e5 me2e 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, havcz v rxdw:;fx,)6 9djjf,*i soing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abjwrx:ci)vdf, szd*6 o x;fj,9 out 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 tha.v;qzrubdr .73y42m 3ow kzsc xx(1i et it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wo vco3mk r;b.s7 wzudyq xrxe1( 34i2z.uld 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 resistort 20g.suo-*uy d4s fzu that is dissipating 36 watts of powu -d gf suzt.su0*oy24er?

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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 amhj fnlivgo 5)y(m /63pp2;nag peres of current when connected to 120 volts. If the price of electricity 6/2hoy )lp5mgiag3 jv p;nf(n 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 mo::3 s noz*dyjuch would it cost to keep a 100W lightbulb lit continuously for 1 year:on: dojys*z3 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 lightbulb95bmiepu6kubrn b: 2: results in a power of 24.0 W associated with bn562ubieb rm:9uk:pthe 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 six owns a computer rated at 500 watts in a 129p02 -huczconp1e )*ik* sopv0 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the m oukp e9c0pzhs*v21oc*) pin-aximum 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 connhiu*k q68sz73j5/ooor bjg + iected to four resistors to form a simple circuit as shown to thb6s+/ o*85hi q7uj3i rzogokje 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 four rgb /2s+ice (duesistors to form a simple circuit as shods (ceubi/2+gwn 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 three resistorf (zgt5/) fnhvs are connected as shown. Withfnzt5)fh/g( v 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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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 res+l.rkbdfb8ivb . me o tvi3a1m3.7px)istors are connectl3i.f.o) t v b7a d+e8kp.m31ribmvxbed 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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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,t3xp d5c: pwaw q9dikt9rf0,5 a switch and three resistors are conn0qd,9kpd a5f :w5 r xpt9cwi3tected 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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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 e.k,eqp yfx*gm nrgk 9qj53 /q.quivalent resistance? Assume that all wires are ideal, the battery has ne,gq n q5. /kqjmx.pr3fy *9kgo 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 2g( eoy /dy.bq to the right with res q/o.dybgey (2istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiv63npifk4y i.oc 0lo xidf o. *mf4)b0xe identical resistors connected in a combination seriei i03x..bnomc 6x f l0do f)y4k*pfo4is 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 identical re5 gk-go73atpsots 90n sistors connected in a combinatios op5asnkt 3t-g0 go97n series and parallel 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 at8qr tvt;;d8m7) evxzre identical. Which bulb will be dx7vq;m trt 8v;ezt8)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 switp t3d a1es1(isug+0bm ch and three resistors are connected as shown. With the switch open as shown in the diagram the amme1 m+eisbts(1up3dg0a ter 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 switc,pz/a 58t sc6m2pstfjy.t 1vjh and three resistors are connecyj1tsj .asm28tzfpt/,v c 6p5ted 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 ammeter, a switch and three upmucqu;.khjcorp+ 3+ 68y,iresistors are connected as shown. With the switch open as shown in the diagram the ammeter rea u c+;36 i,uu+qypo8k. rphjmcds 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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