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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 (kmx l;.c.oc a r4kd7yexists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistc;ad.kxoy .l4(km 7rcor 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 re3 m)nmic9 9tppur 8+;rm rt/zfsistors are connected in parallel, the_________each resistor is thrp pcnftrm9m /)im zut3r98+ ;e 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 causeso4g( n nnwt:2 fm 4/appxc gl.).tro(-zdy hy9 the filament to become white hot, while the larger wires connected to the lightbulb2g9hz(y)n -g/dc x. p.lo tpafyo:w(mn 4n tr4 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 are6q u 8pak j 8ugn8obduof9e555 being replaced with LEDs. LED is the acronym uqp88kg8jd556uofaeuno5b9 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 resistor has lenfj6y96 hns h /36glqyqgth 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 resistivity of the cf6 n9hslj6y q6g/y3qh ylindrical 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 material. Wire II has twicezc-mo;x4zd k ,z+ 6lob the diameter and twice the length of I. If I has resistance R, II has resist d 6zkxocz, z-;lo+m4bance

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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 b w zre (w fuc1))5*jqwa,+qtkiut has twice the diameter and half the length of wire X. If wire X has a resistance of q(1 ja +w5) wki*)fqz,c etwurR 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 length L and radius r. This piece 5z1 hppm(smxu;rl3q ,of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaus5u;hz13xp ,m s pqr(mle 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 yboy 6txs8(stbk s*w6xt0 r71wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given volxbtr(osty8*1 0wyskt6x bs 6 7tage?


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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 resistorsx zy rv1lh(s-grb4)v5 are made of the same material. The length and radius of each resistor i ) x5rh(y svzvl1rg-4bs:
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, eaqukbbr21 )jd:3it /fv 4hr ia9,.qrpb ch of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. Thisr) : /t 3aq 2r,d 94b.bhrqikbvu1jpfi 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 diagram has inter0lell)rte z ihjw30.i..0e kqo6s2 s hnal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.ks3qz 0 0ljsw6)rhli2ti . h eoele0..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 cir :u2o.dakck: bcuit shown to the right. The three bulbs 1, 2, and 3 - represented as rea d 2:.oubk:cksistors 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 rig2sujm(t8 5. 49x9xftx 7ggqz 6 hiajewht. If the current in all three resistors is equ.7a592ufxsz hw9xm gtqiejt j(g8 x46al, 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 sig0 ;i01rqh4ld ipy;4k7hk uwymple electric circuit composed of 5 identical light bulbs and 2 flashy40dk4rkiwughq hy;i0 l17; plight 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 NOT true conb6 /y8s l3xlhscerning the simple circuit shown where resistors R1, R2 and R3 are have equal lxbss 6 yl8/3hresistances?


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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 a battery. Bu7;r vt y*p*f .e/soslqlb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected ioe yqfp v ;rlss*/.7*tn 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 coulo sk8gtm9nxv 4(mbs will pass through the identified resistor in 5 seconds once the circuit was closed? xn vt9(s4kg8m


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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 circuit ci cq+dpu6kc16b8h 8gji2y+ ghave the same resistance, whi812cqgp +8ubcd6jh+6 c ik gyich 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 dir4( 1y/sp5oycf;e )f-pil cav, co 5stagram, the current through the 6.0 Ω resistor is 1.0 A. What is the poweri(/4cyrc epo,o- t s sl5 1y;cpvf)a5f 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 Rpgmrq , 1zu93y(zf.w0hyh lur8.l5st3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resi,5sfw3h.g1quz 09. yurmyh prz8(ltlstance 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 connected in par39 ;in wetnck7allel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the currt793wnkce;ni ent 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 ratu) x80 xlr,pu5d :r w;lkr/zf ep4a4oped 1200 watts and 120 volts. What is the maximum value of the current under these conditiokpw8f4p, r) x zp 4 aur5x0lul/e:rdo;ns?

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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 60w ty;tj )d/17il:kunb watt lightbulb designed to operate at 120 vol yl/ubdk);n w1tt7i:j ts?

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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 s5o-uu*b,gl lm ) s8xc-uc ng,a 4 ohm resistor that is dissipating 36 watts of power*)sbso umc, ugcl- -u,ngl8 x5?

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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 ironc q9 c/0ph4dgt used to press clothes is marked "120 volt, 600 watt.” In normal use, tp4qc/9dg 0 hcthe 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 produced by a circuit ce4 i6k 1(pi9u.ihhezjpej8 +nc w o(d0ontaining only th6io1npk hiw8.p 9ej hc ze(i4 ej+d(0uree 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 givengx/ bdt :s0k+e three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using alle:+gbt /sd x0k 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 vwfv+g hc; q dg11rnakd(3) u-lalues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanc u)v-(aqf kh3 ldn;g1d 1crg+we 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 battewdapcey5m0c e c 3 t1;-r1lwr+ry, 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 of the rmc 0r5 1el1 y;ac dtcw+3w-pebattery 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, ae nhhzhrzv04*,bz t); re connected in parallel, the equivalent resistance of theh n4hzt hev;z)z br0,* combination is 5Ω . Which 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 designed such thatq-*bm pvk9 oh9 it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.mok *h 9v-qbp945 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 that 8ymncyn,w0.u(iv9g v is dissipating 36 watts ou 9n y0ymn.wv,g(c8iv f 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 .t k z09l-y7 d:tsyzuaamperes of current when connected to 120 volts. If09tuzyt :as7ly- k. dz 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 lightf2 p*0 qwgr,bbbulb lit continuo fwpbq,r2g 0b*usly 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 a lightbulb result98njp r17prq p-v zuw prje(:8s in a power of 24.0 W associated with the bulb. Which one of the following:p8npjuqr9 pr1 v- 7er8 pj(zw 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 s/xep 43dsp-rl.mvel-6 rb8cuix 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 maximum number ofbc mp/3p6x-e erv4 .8- dsllur 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 resia*gdfrljb*f4 ; y6 qqru-3 -xy +gvm8lstors to form a simple circuit as shown to the qy3*jg6 l-v*+rxr -qu;blgf4may d8fright.
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 i*z oct:1jmr5v v.zq/)p*sg vps connected to four resistors to form a simple circuit s :ro*v1vcg z5*)j/qmtpv. zpas 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 aop 1f8ysg+sdtoo gq)n lu54)0q0h x 2pnd three resistors are connected as shown. With the switch open as poqs5u1p)g hx8t+lofns 2) go00yq 4dshown 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 resi r 8,k atycw+52vgw3qystors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.cyyg5t wwra3+qk2,8v
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 resist.ecr. *5 czc2 hmp3ivrors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.cr5rp .c vm23hie*cz.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 r: q z(y*mhf1n 2if/ itil7j/gbight, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have ide 1g/jml*i: byqfi 2zf(n /7tihntical 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 zp/ow;q0-a 2m ws6vov circuit shown to the right with resistancez-6wos ovv; 0 /m2wpaqs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectedg buu4r)1km94 y(;ltne d r,lq in a combination sen,g4 1r um9)bly 4ru(q detlk;ries 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 co2 ;,6fuvunldp q;1h1cupli/rnnected in a combination series1 udp prl6qlf ,/2uchn1vu; i; and parallel 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 dia4l /lt tg5uv0ggram, all of the bulbs are identical. Which bulb will be the brightg40 gtu5lv/ltest?


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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 t liex 5r./*gk+w jfb9uhree resistors are connected as shown. With the switch ope i+ef5wlk xbrug9*j./ n 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 adrjkh2q3g*k .yrh 5: ymmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterh dkj3r:*kyy2qg.h 5 r 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 co 3a 9)yq0qhpgqnnected as shown. With the switch open as shown in the diagram the ammetegq0 y )qaqhp39r reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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