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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, t1 9oqyxtt. 3fazq5m4 b*lp f/an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor andm t /f31al.qotzqyx p4*b9ft 5 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 resiaj lus w5(7r08ur/y restors are connected in parallel, the_________each resistor is the7 rwruur/5(0ys8 elj a 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 wire of a o eci1ngo/m.) lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens because/1o.go)nc i em

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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 lidyr(q6 avup 1-ghts are being replaced with LEDs. LED is the acronym for which one of the followindy1v( 6- qarpug 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 cros 2xcegz2 y+8mts-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 thzyx e2mtc8+g 2e 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 of the same material. Wire II hau trh/ umt6m7svru85):oul;s s twice the diameter and twice the length of I. If I has resistance R, II h7uhmsm 8tl: tvsu;ror 6u)/5uas 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 madpt5uyl3 w9l9bq,tu, de of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resista9t,5,lw b3t9luuqdp ynce 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 hasz2 q 2-dm mvctk8f4/ t4o6wxtgj)y7vb length L and radius r. This piece of material is wgtqvy 28j v-6ozb)d cmxft2kt/744m then 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 Thomas Edison wants to make a brightekoa y vpaznst,:,*m.xyu5::o r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in ordeu*,ptsznxa a:y5mko o y.v,::r 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 mavc p(qd/h wc,8terial. The length and c,(p8hv /w qdcradius 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 connected to a bah iqn78*eyf 1c17zoh.bew)kq ttery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel.ze *qe1ikfh8n71cwqb) oh7y 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 :r,j-jhac /c :zejq8saccompanying circuit diagram has internal resistance 10.0 kW an -ja sj/ch:r cez,:qj8d the ammeter has internal resistance 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 compound circuit shown to the right. Tryme:g11k ,3oabpo7y he three bulbs 1, 2, and 3 - represented as resistors in the diagm11agp,b ryo:o7k e3y ram
- 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 e;8 u71zxmi tirlectrical circuit at the right. If the current in all three resistors is ;zxrti 1iu8m7equal, 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 reprezc8 5q; xmqjzthlrh( /m*;) lgsents a simple electric circuit composed of 5 identical light bulbs and 2 flqhqt *zjmh; l 5)gxm(rz8l/c; ashlight 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 2/)p8jxigwn z6r utm .is NOT true concerning the simple circuit shown where resistors R1, wgp z6mju/x)ni 2r.t8R2 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 0)pi hcgnv+5f are connected in 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 gi)v5+f0p nhcfollowing 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 1, el tkcd6ha(f/p w;drs f8)u 5 seconds once the circuit was)cf;h8 ,asl6dew 1ptf(k d/ru 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 ci49xvgnk6 4lp lrcuit have the same resistance, which would dgn p6xk4lv l49issipate 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, thw /xc e5+gz t1mqph)n3e current through the 6.0 Ω resistor is 1.0 A. What is the power supply vm5 1w+ x hzge3cn/qpt)oltage 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, anho;,( uny: xpnx-je 2)oktwg5 d R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. Wh ox kj;(oxypuweg, nht) 2-:5nat 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 parallel to a iduv nf ,gs ,6l9j.if9battery. Suppose R1 hafg6sfdiu.9l9 i,jn v, s 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 c2;e v-jwklrxs )w )0njqn/q.volts. What is the maximum value of nx klq.v ;w/)0eq2srj-n)wjc 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 operate atk hjgk4*) *mli 120 volts?i*m kh)*4k lgj

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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 rewsg3(3tul3zn 6w,w aj sistor that is dissipating 36 watts of powea 6s3j, (wutwlgnzw3 3r?

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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 watt.” wssd0z (yv1 hsahyy,oo6 fl1r8.9 (xuIn normal use, the curr,fx (ya6loy1s .09woh8(vhs d1rszyuent 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 bef *lga;)b6c thd7ew5c produced by a circuit containing only threh cg7e)c5ad6t*fwbl; e 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 1,di kn .7hc o6xxiz9duqy/peo+ l9;cthree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all uc6 h; z /x9p 9i.oycxd 7dnq,le+i1kothree 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 rlx)s-knp .3/3n)zbyr : tjeacan be connected together in different configurations. If all three resistors are used in a circyea tn3n)r.l sz 3kj:-)b/prxuit, 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 resist8w 6khzvtp ,f6;0r(gibjsbp 2yx- j-dor is connected 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 cok8wr,i-gpt0s6bxy fh j-6( v2bpd;jz nnected 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 ayawk nkz0-;jb zs x971nd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which ;9byxz0 7ajnwskzk1- 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 has a resistance of 12Ω when opeskp:xtlb /6h1 rating at 120 volts. What is the minimum amount of time kp1t /b:ls6 xhthat 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 diss+llqg42vhi t/ipating 36 watts of power?ilh g2q+l 4vt/

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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 zllrfz 07 z3u:draws 13 amperes of current when connected to 120 volts. If thz0rlzfluz: 7 3e 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 100W ligxe3w gmr60-b5ieioh b4ro7k+ htbulb lit continuously for g+7i4-io 6or3r0exhkeb wm5b 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 results in 7hf fo/(fap7z (gjo(m,cru/m i: qjv;a power of 24.0 W associated with the bulb. Which one of thejhq,f (:jomffpm( i/auz7/v ;g( o7rc 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 compudc5zza4zm n yv1g 2 3,vjo)br5ter 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 izvarb145ozgnc 2d3 yjv5m) z, s 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 foui 2gk 3togha pl*2ec,)r resistors to form a simple circuit as shown to the e)k p,o2a3tc i2gl hg*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 resistors to form i4n w39eyk7l9rus1ria simple circuit as shown to the right. 3i4 nuwykisr 99el7r 1
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,8 a* r 5jps ln8t)j2tihy+yxr) a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 8)r*nyj 85its+lhyx2jra)pt
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 ammete2kz6qh uom.o4f a+lv0r, a switch and three resistors are connected as shown. With the switch open askaqvz 2+o 6um.0 fho4l 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 in .erdjw--p2) e dggm,deal ammeter, a switch and three resistors are connected as shown. With the switch open as shoedjw ,re2pgngd- )- m.wn 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 equivaleo fb pspu6 5p/+hwbe)2nt resistance? Assume that all wires are is5pohue)b pbp+62f/wdeal, 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 rmuns 7y( ).fcuij5 .qresistance of the circuit shown to the right with resf.)n.mqs5(ic j r y7uuistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 f3gwyr w h ow pqy;p*vatv0exa-k2m9a c)1;/.resistors connected in a combination seriww;fy/pav9-1ypa ecrt*q . o230akh mvwx ;g)es 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 idr-1 b4uh6wkgew 5uxz 3entical resistors connected in a combination series and parallel circuit to a voltage source. bwr5geukxz4w 3-1h u6
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 are identical. Which buldyne, a174rlqnk.u9l b will be the dnye.qa4u r7l9n lk1,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 thn5g e/v nnyf+7k s42vjree resistors are connected as shown. With the switch open as showf jvn2k+s y7n/54vgn en 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 anwx53na7/,3 e44mnnjxnd cpcnd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes3xmnc n/4 wnxdc ,5je43nan7p.
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 ammhw7xan968ej4 zeq( zg eter, a switch and three resistors are connected as showw649zej g7h(q 8a enzxn. 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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