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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)i 8*nwyrxvq9ns n;)v exists in the metal resistor connected to the battery. Which one of t)nsq*i8 9;w)xnn yrv vhe 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 connected in parallel,yaarrl51 ij5 / the_________each resistor 5y15ra/j arilis 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 wn 8 :(xy g)undd7+ozkmire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happn7omnd( yxu k 8+zd):gens 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 LEDih nzsw0s u*616p6g7p5g7 1syhdfook s. LED is the acronym for which one of the follswgo6g160hks ou h *pdp6si7 z75 ynf1owing 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-s,)0 c:lqnit/33 gr ;u;99eq mdyw5wkugvxnw eectional 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 o 3yvw/ug ;qiw9qmku )lcn,w0rx;:t9n5gde3ef 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 material. Wire II hadp 04d8lg3khw9p+kl hs twice the diameter and twice the leh9kgw4dh80kll+ d p 3pngth 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 8 e1xx/he 4bxk.vyjz* twice the diameter and half the length of wire X. If wire X has x1e.h84xzb yexv*jk/ 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 length L and radius r. This piece of materiac 59cdxp23rg gh0) xobl is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of g0g5 db o)2 rxxpch93cthis 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 decidesggker lta(q67 8m5e1b to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a givelkq651 7tgega rmb(8en 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 resis- hs h)3hbf0p;(lg6a3sesz 3wf ko:4w(ij ubytors are made of the same material. The length and rady hki boz(h4j(s 3use)g3hp 3l:;-wwffb06a sius 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 connected tozc/3 y2u4 cd;jz9vgul 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.” What is the equivalent resistance of this arrangement of four resisto;3 4ucd cy /lguz2vz9jrs?

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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 ca5n)l1 au0tnb ;3j ji9ab:mqm8j li: xircuit diagram has internal resistance 10.0 kW and thbjmu:)nbl: 0lj1 qjxi9i35;an tm aa 8e 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 the ri9dy 7lobl68e yztv. 36sejg7l ght. The three bulbs 1, 2, and 3 - represented as resistors in the yyt9.d7ve36og6jsll l87 ezbdiagram
- 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 m/fg/zb uyyyu9/ w8a; in all three resistors is equal, which of the following a8yuby//f9/ug;wzy mstatements 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 simpvv7cupdu pk6 4+di -a;le electric circuit composed of 5 identical light bulbs a du +-pd;u7vak4vpci6nd 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 NOT true concerning th:2l4mq--+qql4kqkri coy/xa1 dby5 oqa 8y/pe simple circuit shown where resid +cxamk o 5bq-/ y42qo/q1r qqky4:yp8a lil-stors 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 0k0 m eqfm6 (x-c:)tlg caeuqq-k2:rlX andY 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 each other to the same battery, which one2u f:gq0-me(q-ecx q6:m)l lrktac 0 k 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 coulomb2mjpm foh :lpb3,.w1 9ch/bpa+5i qdts will pass through the identified resistor in 5 seconds once the thad. m1qp9bpjc ih2p f,+ /:m3b5wlo 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 resistors in the fo /,w72geoqaf-- l.ojizm 5b1e jfb /uillowing simple circuit have the same resistance, which would dissipa, bm-7w oe1uezf//a i-2q bj j.oi5gflte 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 dia8 byhodp,vq(. (j: guagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power ahy o.,u((g 8: bjvdpqsupply 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 ;ihae+s2jyn *in series to a battery. Suppose R1 carries a current of 2.0 A,eiyjsha*n2+; 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, zccif3rw4rto ( zdz/9;y4 b-m R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acros 4oz3fizrmdz(4cy-tcb9; r/ ws 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.j xn u /by(: c;y :xz/s-lsi;yrwp0al1 What is the maximum val/sps-wx0rya:j; iuz; ynyb :l( lcx1/ue 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 resistance of a 60 watt lightbulb fmz28o d 0h9emw;l0hfdesigned to operate at 120 voltd0 f w09lhmh z8efm;2os?

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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** ad;7g(yzqn4ig o bt ohm resistor that is dissipating 36 watts of powerb nz; o7g*iqdt(a*yg4 ?

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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 v3 q 3m/wsw/,2;xtkedg agy3ftolt, 600 watt.” In normal 3 w/23xq sfted;gg kmy at/3w,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 following resistbs a2y8qt,i c+ trv qc5dt5.8aances could NOT be produced by a circuit containing on,tbc q+.t 55 vy rq2ad8atis8cly 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 equivalent t k ;*r.p dv*ka.fc)adresistances CANNOT be produced using all three resist..)r f* kcddv a;t*kapors?

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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 jrf7pvkt -g:28xuig5 u ;8rpqdifferent cov5 ;gt:krp7 2ux8jr p8g qu-finfigurations. 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 v9c8bc8akl i;, 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 batter ib8c;c8vak9ly? 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 ingb:q cww(/ 7qy :swh9s parallelsw 9hwb::g(q/ y 7cwqs, the equivalent resistance of the 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 that it has a resistance of 12Ω iu+1sgx n t1*6r d lz*6mlo6spwhen operating at 120 volts. What is the minimum amount 6 11 *tiulrs6*lds6+xngo pmz 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 that is dissip6ipw8ef fnfx-s3 p0k .w(. sbuating 36 watts of powerw fb68fs 3fk xpnuiw(..- sep0?

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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 tokq48 : k/,zg-aayxiq t,4orb u9sb q(y 120 volts. If the price of zuyx4 :bks(qr9tiao gkaq/8,y-bq4 ,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 contin x8zitarw -2p2du/ 2tjd8mu*n s:etp4uously for 1 year at a ratep j* 2edzir:tp2 2u4wnu8 dts/ax 8mt- 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 results in a powerx 9vren/3cqcaw1jcx,(y cw + b,eo,7l of 24.0 W associated with the bulb. Which one of the following choices best represents xcw3o(7 c,,ab +/rxe c,e9 wjq1clyvn 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 rpkke y) yx-8f5b pwg1-ated 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 of the computers cpy -ykgke1w-fb)p8 x5an 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 resistorso p-3n wqbgnam)+/j6s to form a simple circuit as shown to tbn/mojq ) pa s+gw63-nhe 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 is connected to four resistors to form a rafwg5 )1nz* t(md8fa simple circuit as shown to thewta (f5rmga8n ) z1f*d 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 resistors a7*9pigis +e 7lu9o9a bby6(sn dlkr*lre connected as6b 97puy+k7lbolle ag i d9i** r(s9ns 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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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 resistors /-1le jmc 5bhbg+lf/ qare connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0f+q g1el hjlbm-/5/ bc 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 thre ge. iq+xa,2hjazqv2(e resistors are connected as shown. With the switch open as shown in the diagram the aex . zh+2jiva2gqa ,q(mmeter 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 tdr i zn+1f7jxxjk:/(the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all t:jxrd n kti7fxz 1/+(jhree 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 showd-.sa igyf. w7n to the right with resistances wf. 7-dagiys.$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectedfed5,w4o l v(.iq. g/e dn,vwv in a combination series and parallel circ d4q/(neg vw .5el.vv ,w,diofuit 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 idem9dz,ia x.z9j ntical resistors connected in a combination series and parallel circuit to aa mx d,ziz99.j 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 identical. gpzs,fce 4mv: c+ og2+Which bulb will be t+ p4gcczfmso ge v2,+:he 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 resisc7xglz* kwi. 7c.n2gz*dm1a ators are connected as shown. With the switch open as shown in the diagram the ammi.k lc*z*21.daxgz77m g wcaneter 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 id(cycy-c. k0s25/bg3 s / ub lhg/iqulleal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea3 / /cclybi0 g-/c bh2lgqu5s l(ysk.uds 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 6ahyy3os8-uithree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a 6y3ui sao8-yhmperes.
When the switch is closed, what would be the current in the circuit?


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