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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 metacmc1m 1wl *2rsl resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direct1ls2wcr 1m* mcion 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 parallel, the____ *;o7;fmzrqq p_____each resistor *f rm;7qp z;oqis 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 thin filament wire of a lightbulb caus,, :7mvj (s(gm,xn qzbh*fwxaes the filament to become white hot, while the larger wires connected to the lightbulb remain much z7, h*mw:xsgmxv(n,,b fjaq(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 with:o5at abp ,sx9-q(g kg LEDs. LED is the acronym for which one of the followin aq( 9g5t- ag:sxko,pbg 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 qi 9kx amcd)g7w 4v;x6area 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 resistiviv mq)69xx gca7w4; idkty 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 mater*0fb59/j-q59fjwjjc 0 0oey qe6s1z djjjr jfial. Wire II has twice the diameter and twice the length of I. If I has resistance R, jezw50jfqqsr605ojj09jb /fy- 1e9 dj*fjcjII 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 1tin 37apevs2the diameter and half the length of wire X. If wire X has a resistance of R then win1pt73v2i sae re 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 haszz :ixmmw2.: v length L and radius r. This piece of material is then drawn so tham:mwi z:.zvx2t 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 brighter light bulb. He decides to8t7x iut :mi0v modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more lii t 7:tx8uim0vght 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 res9p jj. rh/b8)nysfg s eb y(b/5.xk,hiistors are made of the same material. The length and r/ebjp ibk,bhx5f9 y.g.rs/j (8h ns y)adius 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 ciqd 7 et m9f3a*/-g/mrkgy4yp onnected 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.” Wtig pykq 9* 3-/74mye/mdgfra hat 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 diagram has internal r;bge +s lur2k- ou4j3wesistance 10.0 kW and the ammeter has internal resistance 25.;j+- brue3os2luwgk 40 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 thoy;tecx,b ) g;3upju )e right. The three bulbs 1, 2, and 3 - represented as resxg3;)ty, eb; u c)upjoistors 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 circuit at the right. If the currenj hk7bgrt5((ft in all three resistors is equal,(jk gh(f57br t 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 represents a nqkszir mj9 * x(9xru *54ew:wsimple electric circuit composed of 5 identical light bulbs and 2 flashlqejn rm*(* iusz94rw:xw5k 9xight 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 statem5s70 fa :nlabed8mfl3ents is NOT true concerning the simple circuit shown where r: fsl lna57 dabemf803esistors R1, R2 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 andtg3ua1yeb6gj p 066w o2msx/u 5dnfh ,Y 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 ,dus0t5 o626hag/u3wgy 1xfmeb j6pneach 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 pd 9c40gic ;q3:.lhpld e4l kxpass through the identified resistor in 5 seconds 9eccl4 k3qi0dphll4. d:;xp g once the 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 rj -jhv9i7qv r /m2/7tpiwy/ tuesistors in the following simple circuit have the same resistance, which would dissipate the wjr7q/p/vy/t u2 mihj 7ti9-vgreatest 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 throug2jz64ylg)x uc :xchi3*8 chgbh the 6.0 Ω resistor is 1.0 A. What is the power s*)jhgu l8:4y 6c xcixgbhz3c2upply 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 connectedu;i6q:v ja ti ye:-v2h in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipav 6h-a;v2uye: qtj i:ites 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 resinal13v-ymnu8: ms4 5 mvwoa *nstors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the nsm 84n mu:mvnavw1 a* y3-o5lcurrent 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 rr b-q4i58jps6uhs)pwated 1200 watts and 120 volts. What is the maximum value o6ib-5s uhqsrp8) 4wjpf 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 re/zpj d7n bn.a2sistance of a 60 watt lightbulb designed to operate at 120 volt z2b7np. nj/ads?

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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 2 k-62uwz:h zqvrlq3k dissipating 36 wat2h lkkrzqz-qu2 wv36: ts of 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 watt.zyujpj 40 g,ak7f(p i9o:dx.w” In normal use, , z97axpk(i:u 4 gpyd j.jf0wothe 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 cowdn4eh0 o,mvk0w ghp 3aq g y:;(g2n+uuld NOT be produced by a circuit containing only three ;mno23gw ,kagqnh04u0vh: ewd+p( gyidentical 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 resistors)cymzsvrg7e42 d.5 olh(ud+w. Which of the following equivalent resistances CANNOT be produced us5c+ze.yrov2 gldsh4m(d u ) 7wing 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 together in differeg rwzr2lx. (n;nt configurations. If all three resiw;lrgxn2 (r.zstors 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 p*cdu/-+fc-ulb1ugn aower 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 / b*ndgu1 -cu fl-auc+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 and R2, are connected in paralle12;rxh1 59cca lprfu/oone6 9xhusq 2 l, the equivalent resistance of the combination is 5Ω . Which of the a; 9612 xohref1 so 2 qhc9/lxcnrp5uufollowing 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 htj-;8ok u y+r/yklts(as a resistance of 12Ω when operating at 120 lur8k/jt osy(k-t +;yvolts. 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 tq5mt.sce )+q lhat is dissipating 36 watts of powse.l5mt q+qc) er?

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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 s1m.lup);+xhdsb-oy r*: e fvamperes of current when connected to 120 volts. If *)-ry l;s1:oudmx . +hsbpv efthe 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 ivwzq, 1w2 :esst cost to keep a 100W lightbulb lit continuously for 1 year at a rate of 2, 1q:wzswse v$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 result uoqydd; 79vw1s in a power of 24.0 W associated with the bulb. Which one of the followidqudyo ;wv9 17ng 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 comp8ln8;9u wkbmd 48b zkxuter rated at 500 watts in a 120wdxluznb 84 ; mkk8b98 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 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 sv;.-6qk wda7 qtfdp9ximple circuit as shown to t ddq9f ktx-aw6;.p7v qhe 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 iaf 2u/unk-p(tk8hrd-jr,*gio4 onq. s connected to four resistors to form a simple circuit as shown tu-ftihk4,dog/ apuq( *8kj.nr 2r n o-o 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((p g4:tg1ivru7 pou)tjb1up ammeter, a switch and three resistors are connected as shown. With the switch open as showutoi:)b1g (1gupp 47 (rjp vutn 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 thre ixa-rt02ge 2je resistors are connected as shown. With the switch open as shown in the diagram t g 2-ar20tjexihe 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 switc)h ;vqrt qkv.(h and three resistors are connected as shown.q )vrht(.kqv; 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 resistanz)zhf+l )o2c3) wrsnqce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors ha z2 c)fznsql)hw)r +o3ve 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 k2 jjz-y bam5)to the right with resis25j-zaybj k) mtances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 hccm-wq;5k +widentical resistors connected in a combination series and para- qw5w kcm+ch;llel 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 f.hmf *o3.hijt xfn:q9 ive identical resistors connected in a combination series and parallj. .nf* fqx9iohmt:h3el 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 are identkw.+k4kse1q8 dn zi72.woggow; e8v pical. Which bulb2e.k8dsk w+oop4n8w7;ge iw gk1. q vz 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 three resistors.xpkif;h 6)pk are connectedxk)p ;phfk .6i as shown. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal amgkj(q 1no 6 euk17 7r+2b1qhbr6ebuskmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampk sb672k o1egrbukjq un q1+h16r7b( eeres.
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 resistp+wu8t68/h tddz ht:rj e86u iors are connected as shown. With the switch open as shown in tht 6 8 +h8u/pzu6reitd: jwdt8he diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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