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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 sho*sl: jbb4ih6v wn, 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 and the direction of the elej:shbi6 b4 *lvctric 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_________each rk*b e:oa;wpy- esistor is twe: oa *-ykbp;he 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 througgsfgy)d;e -*uh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wg*f) d;eyug- sires 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 / lau2d)zcql 9fmw-, owith LEDs. LED is the acronym for which one of the folllaq)c d o92u/z,l wmf-owing 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-se uq vm3nr8kh8q,d7 )ulctional 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 7rv 8qmkun,8 3dlhu)q 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 of the s2r rk ffl4z1/k:f:tww ame material. Wire II has twice the diameter and twice tfw2z 4lf1krkr: t :/fwhe 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 and half t3y8w:jv ywx,90o uat ahe length of wire X. If wire X has a resistance of R then wire Y would have a resistanjoa, 9t0 8wuxy3 ywav:ce 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 radius r. / 1f fldee0px/This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materef fd0/xl1p /eial 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 de29fc ezu4bt 6ecides to modify the filament. How should the filament of a lightbulc6u e2e 4t9fbzb 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 leg2ialv bi, n5x c9j047 kcchj3ngth and radius of each29ch3acjlkxvgj45 i i70c, nb 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, 6u//vh-sm8 8ad hclrj are connected to a battery in the following way: “Two resistors are connected in series. This c8m/ rj huvls86a/dh- 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 circuixkq99o7; 1 um dzcyq1pt 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 read;ko7q991cz py uqx m1ding 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 compounsj;q l7+h9 ybl54 mnzgd circuit shown to the right. The three bulbs 1, 2, and 3 - represejhm l;9b+z47 ygqsn 5lnted 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 circuit at the right. If the current in all iyb0* c 9yqrjk6z5t,e4g6a:igdd o (cthree resistors is equal, which of the following(*6 y,c9j g6zdkr50qyecit o4id:abg 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 41 ;qdt te+snabg5z))1pikto8vfpbt4yk0:ocircuit composed of 5 ide:0tnk4qbz;)1ae+gpt do bk 4ftp v1iy8 s)to5ntical light bulbs 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 k3xpv5k1u+ u4eb quo v;mso5v.) q9deNOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equuuo+x.3e )komv 5 v49pedskbv5 ;1quqal 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 nxf(i6x* nupkk7w.z8 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 following choices best represents whatf7*p n.(k x8u6 wxkzin 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 coulom vh:a7znl*hwqk;ajn 0bi+ 9 u,bs will pass through the identified resistor in 5 secondbai hnha+k luq9nj ;0*zv,7 :ws 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 resistor qum5 x *4rif)zcyl6m +wm4mn*w6aef4s in the following simple circuit have the same resistance, which would dissipacueiryzw5 44x mf6mmw *l a *4fnmq+6)te 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 thub979p tdq xh 4-kv5,a*cvf00as eaj+kfsb6zrough the 6.0 Ω resis+xua9p va4,j0s vk-7 ts6bq hza9e* kc05 ffbdtor 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 ser vz4)lf0 x0-hxukxp: ries to a battery. Suppose R1 c: xf0 x0lpr-4zhxkvu )arries a current 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 -5f -q ow8sg;ypwgoj, are connected in parallel to a battery. Suppose R1 has 2V acrs,wo p5gwoj yq8 g-f-;oss 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. grcd v 54ek *ra(uc6-8mjvx 5j What is the maximum valuja8 x ujvvgmrk46(-crcd5 e5*e of 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 resistactqlm3/8; ac gnce of a 60 watt lightbulb designed to operate at 120 vol/tgc8cq3la; mts?

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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 d2 0o3w,mp.v;fjdu h/k;i uznflows through a 4 ohm resistor that is dissipating 36 watts ownmzi .fu;,vk0pdoh j;d u2/3f 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,s7 6rb3,nl/hgjj/qfzdpof 3 9ric57vg x/ 2da 600 watt.” In norjqg /,2 r gj/5ic/3pf6d79vr3an h7f s xzobldmal 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 followingc3(8 afosq h;ku5k4gy(-bi9 vp uc4t5veaj a+ resistances could NOT be produced by a circuit containing only three identical 6Ω r4b5 ocjuata g54 qc a y-f8;pvsh93+kuiv(( ekesistors?

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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 thh8.k 4: 9md 3wsyfjrtge following equivalent resistances CANNOT be produced using all threh.tr3 kdj94ym:gs f8 we 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 differry39 ,dmc -tp+/ qthaaent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prodchdt+-aa p,3ty rm9q/ uced?

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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 batm7x kmjh2r1haf nzi /t- t:1v8tery, 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? n ikr-1 7z2jftv:/xh1tm8 hamAssume 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 par.i;t6o*m jzg2 9xxew:a)pudgallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about tp.6 xaigz g)otudx;w*92e mj:he 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 icj zdkr7u 7 1h8c):c/p;fx,vhtxo : g12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fxj g/pxzc71)vfo :u; ht h,krcd:ci87 rom $15^{\circ}C$ 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 dissipat3s q2 n,ny* sdy7vdcsz(i2 wh5ing 36 watts of power nqd25,(d2siz7c*nshy 3sywv ?

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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 heate61yu 2 su)cjq71 q/c 7oztt,dgtw)itrr draws 13 amperes of current when connected to 120 volts. If t wttc),6yq/1dqutioj71cu z)t7 rg2she 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()ft n4;e.klfm-exp w keep a 100W lightbulb lit continuously for 1 year at a ratefmfnwl -px (k4 e.;)te 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 lightb )*ou5 qml+jalulb results in a power of 24.0 W associated with the bulb. Which one of the followinga5) +m l*ljoqu 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 .9hhl1n-n ms3xw*ak k owns a computer rated at 500 watts in a 120 V circuit. If all computers 9snahkkh xl-n31w .m* 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 simple circs:g+yj:jry mhgky5h ,p,w2- w uit as shown to the right5wjw 2y+ sgr yj,y,gpk-h::mh.
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 fou y: 0sp3c/go5e94k kcxnv lu7j fjvo65r resistors to form a simple circuit as shown to th 5 k4vj9 l7 cynjvosxog0:6uf c5e/p3ke 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 -/t7iqws91 svfjg;rg resistors are connected as shown. With the switch open as shownt;sg71/j gwf9ri- v sq 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 swiuuu1 m;(fl yp6tch and three resistors are connected as sfum p uu61;(ylhown. 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, a switch and three resistors are cmiky:d6 i)-ok onnected as shown. With the switch open ao md)k6k:iiy-s 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 p6 ys;d v)p5( yr8z4y:bpfif oright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resizf4p6vd( )y;8s5ypfri:o bp ystance, 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-upqm 2c)fb1p 30bs c;s8hegk the right with resistances m2-hq fu3c0 pb s8pg1ebcs;k) $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idej0/1 cg kerik7o xx6t)ntical resistors connected in a combination series and parallel circuit to a voltage source7oc6g k/0 xrik1e)x jt.
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 fivf1lgs 1mj6 +d.bga+lge identical resistors connected in a combination series and parallel circuit .g l16 f1dj+gl+gbam sto 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 bu0i9div9jx 5 :0xcx0 ,zeamgh29 rjxn f4l ebh*lbs are identical. Which bulb will be the brightest?c90x0ijem x:r hzx04 eihj ldx9g2b,v5a* f9n


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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 threev,qu wr+r+evltbx u ;mxas 94-19swu, resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsu xw,xe-mrwvvsa+1 q bul9 4rst9+, ;u 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 s wc.g ii*g44szwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.i icgsw4. *4zg
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 resistory18(0 v1s2cb rjx oazxs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesbx2cx0 rya11o (v8jz s.
When the switch is closed, what would be the current in the circuit?


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