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习题练习:.Resistor.

 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 electricd;ucwpz8 0+h ryfz82r current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of elect; 2r0u +fp8d8hwy zrzcron 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 conne1 :3f vxi)h2e ; ej9mbh:iygmh+ ei9jbbh(,yscted in parallel, the_________each resistor is t bbev:9 :mey;9 )sb ,xjy hhg(ji2hi+eih1 f3mhe 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 lightbulbb -e:(gqqre4l causes the filament to become white hot-lqq: ee r(g4b, 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 being replxzjps3nt14nioszx e;9 3:qc7 aced with LEDs. LED is the acronym for whicht3 pcqnnxios14 79 x;e3z js:z 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 hao. mn8 sq*ldae 6.no9ls 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.*nnem d.896so la loq 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 mavcz fad)idf7l.k)s*0 terial. Wire II has twice the diameter and twice the length of I. I )) .v0dffklzasci*7d f 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 wjkq bxb8* nzm-d- ho )a8)hv4of the same material but has twice the diameter and half the length of wire X. If wire X hd n)k -b q)8xabj- hm8vzo4*hwas 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 legn +u lt/rl wg)*(z7jmngth L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2Lllug( j/ tgn7m w*)+zr. 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 lighrsmkz ( 6css//t bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mor/(sskm szc/r6 e 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 resistorq1) t:k:q/- dyvc krfes are made of the same material. The length and rare:/vq1 tk-c )k:yq dfdius 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 ry8tke2 +z 8taun6r-q mesistance R, are connected to a battery in the following way: “Two resistors are 2k-e8nu +za6 rttqy m8connected 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.” 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 acco34gnjn:nw//wrcg2 oz mpanying circuit diagram has internal resistance 10.0 kW and thnn jrn/gg :2c/zw wo34e 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 0 u(us awtb9;ithe right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram 9su(0tu;a i bw
- 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.j*-zszhqe 306baol iiszb tu 7-z p*l5et9/y all three resistors is equal, which ofepl-s yzzb uj6t a s b/*3-zi*o7ltiqe z90.5h 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 represen.,l)ub-gh g*zo t sv afub907wts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or buz*u9. au7,f ) bvlbhtg-wo 0sglbs)
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 concerp-7owl d9)a7r-oa 1d qdn ji0aning the simple circuit shown where resistors r) o1waa7o- d-7ndpdj09l aqiR1, 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 andY are connected in s4 /wzgh9 a3 bk3rm)hjlz0pco8 eries to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY ar b0j9 /r84gh mw3ahpc zlo3kz)e 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 y35.jdy,ocjtf :w b pp5odj2,through the identified resistor in 5 seconds wop:p 3b5djy f,2,y dc5 otj.j 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 ,q,xb9 w rhmkfcl1b8gk)h4e1s in the following simple circuit have the same ,q1k)9,bxfr4 e l wbhckh18gmresistance, 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 circuit diagram, the current thromi qa)8zuoz,jfia 466ugh the 6.0 Ω resistor is 1.0 A. What is the power supply voltage azi jz6foq4m iu6 ,)a8V?


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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, an2;p(6 7j w,1d ,0hxl loubzs7d xqfnpzd 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. What7lxj;6x n, wup( 1bo dsz7,0 qhlzp2fd 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 qgc) af0z)bpw5:) - 0kf uznzlparallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 di bac fzzkgu): ))-z 0q0nl5fpwssipates 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 anr xabqz,y- u-5d 120 volts. What is the maximum value oxq5u z br-,ay-f 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 at 12c oic( tiom0*6w fkx30c04qni0 volwqf0 c4x6*it0k(imncoi0 oc 3ts?

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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 resistorijn-eg,;up q(twcz8) that is dissipating 36 watt,ez-jip)( n tw q8;gcus 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.+yb 9v2c f8ga+w(l eqq0cu fu/” In normal use, the current cyl2qw qu/c9++f0ge v8uf(ba 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 resistanzg/wy1 h2cb lm37q)ae.jcpeg;yn n 7 )ces could NOT be produced by a circuit containing only three idezyy)cmpl2. wjgne a ;qnbg3 71che7/) ntical 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 b-sgpw8y7*zw resistors. Which of the following equivalent resistances CANNOT be produced using 8gww*ps -zby7 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 differen;(o f4zeoy3s9w fpi6it values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistan6;fyo (9es4 iiw3z pofce 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 batteryvwpery0a; 5w7ib/yx o02/g;2g lnn j q, a total power P is dissipap0;er wwg go/7j ;5xn2iqbn a/vyyl20ted 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 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, havsxj:9 eyq04 omb) sn 1zp(c,zxing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whichns4mo: 9 y b)j 0zscp,1(ezxqx 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 desig s1:vu,4 ipbz6sncroke 3) t,ened such that it has a resistance of 12Ω when operating at 120 voltsrczn:stiv3 pu6o,ke, 1e) b4s. 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 resistojf; ,m48hr vp1cmn ;acr that is dissipating 36 watts of 8;hf,c4nv cr1amjp;m 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 when8y(.lg hfq vg: connected to 120 volts. If the price of l.q(vgygf h8: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 kee efx.plga32:op a 100W lightbulb lit continuougfaepo.l :2x3sly for 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 z8 e rkt1dwda4o 8j 26htz97lma lightbulb results in a power of 24.0 W associated with the bulb. Which onrdk18 7 2t j9waodzmel648hzte 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 6pf;zm*,emaf 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 *6;a m,mpff ezthe 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 qt vw*gdaz/ lkzf8( .8simple circuit as shown to the right. k8fg(dw8*zzl vqat. /
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 wgh.ux+t26 h nh22zot resistors to form a simple circuit as +zox2u2htgwn26th h. 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 arv(lh5xhz8+o n6 i .pkmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ah i8zx( +v5p .6rlonkhmperes.
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 batteinzje jnz367ix 12eb7 pyab41 +e:jgj ry, an ideal ammeter, a switch and three resistors are connected as shown. 1jezj+:4ez72y jp37i6j1an bbg nxei 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 resispvtqwj- aru,n01 k23etors are connecu,k 1r-e2tna0w3qjp vted 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 rzgi*) i4y)onm ight, what is the equivalent resistance? i*m4g )iy)oz n Assume that all wires are ideal, 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 dfn5h45+l 1n yxjcx3s right with resildjxcnnfxs4+hy1 3 55stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 bebb zh;2chdqpnf :p9 31low shows five identical resistors connected in a combination series and pa3h1;qd: bch nb9pfz2prallel 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 reiv .l mjeg1jlb0i0 1l3eoqm./sistors connected in a combination series and parallel circuit to a voltaegv m1.30b ije1ll ./j lo0qmige 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 identical. Which w3rl:dizpjm 526dh f6bulb will be tw6:dld25 pj 63hmfi rzhe 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 batteza /1ch c 4vat8/i,evpry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch opaph4v/,tc vai z 8/1ecen 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 ammeter, a switcz+r(n 3i i+o0pujgrg 2h and three resistors are connected as shown. With the switch open as shown in the diagram thugnr+ p2jr zgi3(+io0 e 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 iq5-.vkwj hu4/+qws *g1bezvyci8,ev deal ammeter, a switch and three resistors are connected as shown. With the switch open as shown ceuih1v4zbj wq vk*ye5 w-.8v+s,qg/ 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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