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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 exibq6wbu(h3l cx0orz0 o v( qr :v7mq3ivc.q1-ists in the metal resistor connev(vqb- 3 uixh:. 3oq v0l06m1bqirw7 (qcroczcted to the battery. Which one of the following choices best describes the direction of electron 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 connect 9zvx74qudjy 2z04pused in parallel, the_________each resiszvz7yuu q90s24 dx4p jtor is 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 filamenh4ksk*-i k9h w yb)xl7t wire of a lightbulb causes the filament to become white hot, kw9 h74lyx-is k*b) khwhile 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 r(w+w vxfza) v4 qmgw-/eplaced with LEDs. LED is the acronym fo-wmx/vfa+vww z g q4()r 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 resistor has length L and cf;: *l oxci.gpross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so thplg: x*.c;foi at the new length is 1/2 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 j7zmfk) m pm;bn2omy), 0/kfamade of the same material. Wire II has twice the diametemkm )fn 0my7bfaokpm),; /2jzr 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 ;vk- +2dor jdtof 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 redov2kd;rj+t - sistance 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. This piece ofp1sd-s:hoobfaz b7w +t v:3 *b material is then drawn so that it is a cylinder wh-173 ta:sob*psdobz+ fb:v 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 decide qy h)h3ele(,y1rbh p4s to modify the filamen)(3 r h4yh1hee,pyl bqt. How should the filament of a lightbulb 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 length an 78r vqwo31knzd radius of each z8nk 371wqrvo 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 battery in thejhn*c1n4vu 7 d following way: “Two resistors are connected in s14n 7*jcndvh ueries. 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 accompanying circuit diagrankj 7r1jd*r lsc(-2n-pwph r9m has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rearp72*n 1d lcpjw(r s9k--jrnhding 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. The three bulbs 1, j6iasvh (5 wjc+ ;(oolod; tji+so5rz3z f3u9 2, and 3 - represented as resistors in the diag t(isj(;wv+c+z5 ar3iosjoj6ol 3f;uo5 9dhz 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 electrical circuit at ts8bcp m );x26 c8frqhbhe right. If the current in all three resistors is equal, which of the followin b ;f) 6qbprccshx288mg 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 simple1w1f8su9)qbd ot)p xx electric circuit composed of 5 identical light bulbs and 2 flashlight owxu9tq )s) 1fdbxp18cells. 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 state1 5j 57a+bakxu*i eunyments is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are n5ua 7y e1kbuixja*5 +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 series t2rbw -f 2)dl;qgwuy e bz,w6:ko 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 what is obserw6dgy,zbrk:q2wf ubw) 2 -el ;ved?


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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 coul1vvrf ye.* b+ ,fpdvn0ombs will pass through the identified resistor in 5 seconds once the circuit was clos1n,pbv*v+f0e d. y frved?


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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 circuit1fp+o; fu-b li have the sami1o;- fl+p bfue resistance, 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 throuk wun/h61u5 8wc,qsekgh the 6.0 Ω resistor is 1.0 A. What is the power supply voltageuqw86s wnce/ k, k1h5u 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 to a sr fnwp,xcb ))1l(z 7bbattery. Suppose R1 carries a current of 2.0,( w)px)bslnc71fzrb 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 are con-dw9 u 6mcls ord3gdr5dp9+. bv9lh q:nected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatesbm99rvd9wl r:g +u6-qdh spcd53. dol 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. 0;h4tc9 :hq9n .6-ttczpr to6ud/zjjzje g-n What is the maximum value of the current under these coznh.6-tzhc0j :6jt t; ng49r dz9euqpco jt-/nditions?

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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 designhf s2; :1tipzh5ertv )ed to operate at 120 volt: hvstf1;irzt)p5 he2s?

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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 dissipkz-sy677trlnm 8 ff; gating 36 watts of power -;7myf7k6nt8slz rgf ?

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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 usk *d)wc/-s kgked to press clothes is marked "120 volt, 600 watt.” In normal us*w )c/kkd ks-ge, 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 reslnz7e5v+e wpr)a9dx6 istances could NOT be produced by a circuit containin9re5pe 7 lvw+dn)6azxg only three 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 three 1.0 Ω resistors. Which of the following equivalwx3 e8esoh1)whl+p-b 3dgy 0hent resistances CANNOT bd8lp )3 hh3e1yw0oeb gsw -+hxe 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 different vydj ,hx q 3lsduj3/3xd0jhk*e2 1j a(ialues can be connected together in different configurat2e,axh*30lidhy/1jj dj( k33udx sjqions. If all three resistors 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 tp e.4i*n:/)njmat l nmotal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identi )m*n 4l/:napt.ejm incal 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, having resist/-c5kukjc/ut /m 42umtmu 5 imance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statk2utum 5mm4jc/cu5ti m /uk/-ements 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 p06ocehf9,zr9vr ao8 it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to war0v996rh, f8o procaezm 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 tu15bc,;0wndcown9p6 ( ivu cz hrough a 4 ohm resistor that is dissipating 36 watts ofz d5c1; 6 ,u0voubnnpci cw(w9 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 connected y3m: qn ih;cz63kg6s., r/ zl2nqwlqmto 120 volts. I6nqq. hrz:/icmyq;l, nl m233 sz k6gwf the 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 lightbulb lit co 4l j uqg2r,l;m3vu0wbntinuously for 1 year at a rate of u4 gqvj02 ;,3uwlmbr l$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 ;r1k df 8/ag5 v6ujlfaa power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance u a ajf1gv/rkdfl;5 68of 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 own8ue 7+ 6wkdxias 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 maximum numwxd6e 8iku+a 7ber 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 battf58 bo-gtsq* qery is connected to four resistors to form a simple circuit as shown to the right. *t 8osqg f5b-q
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 a c -qk:sxyb94 lf lcx(5tdck9.simple circuit as shown to the r-cs4ybk5.dkq t lc9f(x9 :clxight.
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 resistopog-s5dhs 76r rs are connected as shown. With the swi do 7rsg5p6hs-tch 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 tipv )7+,pzba xhree resistors are connected va,p)+xz7 i bpas shown. 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 threegv-ufz(.c .8 abm4g iw resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 -zg8ua icwb m4.g (v.famperes.
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 thmshu)sxsvi n+,d / pqk 8i11d8e right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and i18kpd) nsv+ q i,msh1d/xus8 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 withhu2cygu za- 1svt0/nw .i*lk6 resistances26sl/nk igtz -u0c h*1 a.vyuw $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectx3vcz 5+f7x2mezlt4 f ed in a combination seriezmxtf 7xv c4+2zl5f 3es 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 identical resistors connected in a combii fkq sc2n ls 6hooe96qx;t293nation series and parallel circu96k3nefl6c2o ;tqs2hi9qs x oit 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 (gxik1;gd h mrg c7gy *yg9w3-identical. Which bulbg *h;3 -ggyd gwg1c9k7ryi(x m 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 ammete 6j8v6x0 3uzh)bfeqpzr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere6z)q8ube 6j hfvpx30 zs.
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 resistors8 rg, eo9. )z+szvuwry are connece+yz9s.vr)zgu w,r8 o ted as shown. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an i;-rboyc 0 b6wfdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.f0rw cyob;b-6
When the switch is closed, what would be the current in the circuit?


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