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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 3q8xsij , 2v4c1c ucfbb9xif15j t)fein the metal resistor connected to the battery. Which one of the following choices best describes the direction of electr xb912j5if bc v3,u)s 14tqiff8exjccon 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 resistors are cgv)cxx px*+ fer )9,nhonnected in parallel, the_________each resistor is the samexx+r*)9 xcv f,np) hge.

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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 onzpyc0:piz l 50 +epj-f a lightbulb causes the filament to become white hot, while the larger wires connected to the:z5-jz0eyi l cpn0+p p 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,xg7bul c(+y c8k( aas1e:bzs with LEDs. LED is the ac7usc1 z(bg + c (ysbk,elx8a:aronym 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 resishm 7 rntjkic5p -ox2rq(dp4 j65 s0d+itor has length L and cross-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 to the old r7x0k nro2ts-r+6iq55p dhj md i4( cjpesistivity 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 ml/(z t lgfw r8z0tm/4zaterial. Wire II has twice the dm ztztf4(l0lwg8z /r/iameter and twice 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 thevjk11paxl9 l 8 diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance of1x jl 9pk1lv8a

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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 qgq8ut58 mst dy+g5 z6of material is then drawn so that it i6 gs5q+tg85utmdyzq 8s 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 Eictxq6 lg)f f8wm/d7a v *f(q0dison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be mofvq i7 w6cl0*(qtfd 8a)mfx/gdified 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 madggoa+gx+1o0c; tq/p m e of the same material. The length and radius of each resto; 0gg/xcqg+pa1+ o mistor 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 battf)vt,t oxb22 (lvjzh-ery 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 rfojxvvbh), t (l-22tz esistors 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 dia.vln3 y gckub+ lw9v+4gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mv +b493+w lng.l vukcyA. 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 compoundpx m .)n/pzzv/ circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistp/ )zm.x/ pzvnors 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 elet 02n(t0hxsb rctrical circuit at the right. If the current in all t b0(txtrhn s20hree resistors is equal, 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 acb . eszc-ta v;(a)uf8t right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells.;z)bt- fs.ecvu 8( aca 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 followi(sos y 61;bexdng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equaxss(1de; byo6 l 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 j6q wqbgxuo/s///- s zare 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/uow//-z/q s6 g bjxqs 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 identifiets7mv) a,s h.md resistor in 5 seconds once thahs). vm smt7,e 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 the resistors in the follkj;n;u.5a-j j br.txd/ plee (owing simple circuit have the same resistance, which wou;xdnjt .l/ebjpj- kr; e5 (.uald 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 circuitq3 z)cv hpa3uyqia14 4dryc9 6 diagram, the current through the 6.0 Ω resist i 3zc9)a3 4dur1apyqy4v6chq or is 1.0 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, R2, and R3 are connected in series nfaqzj(j/t(91p8 xsk0q dn.g to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 91qqpj/s ( dx an08jnt.fkg(zW 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 3ss2z7/ idmnm+,t rl6ht-cxs5e.h klparallel to a batteryzrhle s-. sd7m6i+c 5tmxtl 2s, /k3hn. 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 is the mxn6trz uj9/ox ao9a;9yex) l758 5hkvw-bmr yaximum value of thy6j5xkawa;yh) xmnxt8z- rr99beuoo v l7 9/ 5e 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 at 120ma3 nqjabu.ff:)u (-1xn7tls dsmtw6y 8k f20 vosa8y 1w2uf0 fxt(7nnjab) .-3sum: tqkld6mflts?

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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 curren4g)3cx z:ud cftq-e5d8o; mzt+wp g6 rt flows through a 4 ohm resistor that is dissipating 36 watts of poq8w64pmgt c-+c rod )g ;xtu:f5zed3zwer?

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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 4ulr0 d1vfup3, 600 watt.” In no4ulfvru301 d prmal 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 pri x/db a7)3s uasbo1m.)aen tl q9o39yo/hzj*oduced by a circuit containing only three identical 6Ω resistors? lm ) z9sni* xa3 bj.9udaoboy)s3o/7e/1haqt

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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 of the following equiva.ydh*s, r m9nslent resistances CANNOT b h9ys.m*s,n dre 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 differene(tj,k,0ovl1fd50st yzlpa4t values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of to5 lp4f0 to,tks0z (d1y jael,vtal 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 connelzjvoh-aro)w((l ks 87z 9 xp1cted 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 battery? Assume the internal resistance o -(hll so)z ap 9rxzvkw7o8(j1f 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 and R2, are connep3u/ ml0)ka ojcted in parallel, the equivalent resistance of the combination is 5Ω . Which of t3ja 0/uokl)m phe 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 th ta94ypm 0po,oat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to ,9 4mptoyoa0 pwarm 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 t7y4gg70opztm osb 2p0hrough a 4 ohm resistor that is dissipating 36 watts 4z 2s07opog mbgy 70tpof 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 cy75t km ( h:evgvxp(/ud12f sronnected to 120 volts. If t(:s(kt 2upgv1e57 mhfrv yxd/he 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 cosjk 0. z ap*8iqd/usu-it to keep a 100W lightbulb lit continuously for 1ijaps*qi- /u 0k du8z. 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 a power of b1k- nx(b nd0k24.0 W associated with the bulb. Which one of the nd -xnkk0bb1(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 famil1ijtv91uuq1 t y of 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 ampere fuse, what is the maximut 11u1tqu9ivjm 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 form a simple circ:ra6p8t mr ;m8s bq;oluit as shown to 6pt;l;rmq ao :r8 8sbmthe 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: my*wdqs3trz2 u+m g0q7hg5e is connected to four resistors to form a simple circuit asdz:s0 qg y75ur 2g q3whemtm+* shown 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 resistors a4m 5rubczz+b sw 5/5qpre connected as sh5s wz/5c p +u54bbzqrmown. With 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 g kbh.nin:4n3resistors are connected as shown. With the sw4.:k3nhbng i nitch 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 amme9l* z8k j(ehmater, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampermk*8j 9azlh( ees.
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 93b 8o (rjwitibzq(o3dnd2;c resistance? Assume that all wires are ideal, dbzd8irb ;3oq i93w(n( co2tj 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 resistance of the circuit shown to the right with9 urn-*ovq ac p):uu+9 tx1vih resist n)9qxo +9 r*th1v puvcuu:ia-ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected in a combinaosor6x10tp8wutn )b* tion series and parallel circuit p*nxuoor8 w) 1bt6st0to 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 resist 55;,+: qgx/ v9gp skpnzxpztcors connected in a combination series and parallelpg5kntcq ;: +5pxx/, 9szgzvp 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 bulbd zac70 5smo7) cl.vp0iv1gnbs are identical. Which bulb will bv p. gcds 10i7l50b oca)nvm7ze 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, ailq8upc 7,o) sm:sm3u1y 3wdpn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the s dl3u:3m) wiypsqp,m u718ocammeter 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 resispt9h*k3wg4u0p 1bb; qzqn rw:tors are connected as shown. With :b3*uz;4pgp qk bw91 rwhn0qtthe 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 resistors are a1qfjcsmob+2- q39 q8 z p2jh5b y+qnrconnected as shown. With the switch open as21qjomj8 r2ab qf+yqcs -+b3q5nzp9h 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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