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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 d6ono tc(+zi+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 ooinco6+d+( tz f 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 resisto5sc ucet j4ncane.t y /mg)x4.gs6t44rs are connected in parallel, the_________each resist4jm.6ts ge4s xatc4n ctn y) c/5.e4guor 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 thg wlbtnela: 2p:gc..-: t eir7l-hs6g in filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coolerns-rtll-: l:h .ei g p.twa2:gbg7ec6. 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 houup6o e9e4u* ihsehold lights are being replaced with LEDs. LED is the acronym for which one of the following choicpi eu*eo9 4h6ues?

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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-sec/rfs, nkxd, 6 4kgnw/gtional 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 resistivrf,k k6nxg,/ds4/ wgn ity 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 has t9hs*yv 0ivka8)ep.jbgsl 3 y.wice the diameter and twice the length of I. If I has resistance R, II has resistanceev.0g8y k hi*blayp s 93.jsv)

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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 materip iy/supen7+6 al but has twice the diameter and half the length of wire X. If wire X has a rees iu7np+/y 6psistance 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 nw):nglt j1z7c(o0 /b3 ttjws L and radius r. This piece of material is then draw3o/zjjc0wbs: ntt gw1 (l7nt) n so that it is a cylinder 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 buk5wvi4 c.l:n-k bys /hlb. 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 volta -:bwk/cikhs54 nv.lyge?


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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 rest ruyb x(h0)t/istors are made of the same material. The length and radius of each resisyr) t0(t uh/bxtor 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, eack m o(0pr+sx1hh of resistance R, are connected to a battery in the following way: “Two resistors are connected ihkspr1+( mox0 n 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 accompanying circuit diagram has internal resistancg5,ntxfmz es92 bif77w 8q zy3e 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammetg9fei xqnm75w ,bz7tyfs38 2z er 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 right. The three bulbs 1, 2, a3 a5esqxdb0;smu0 , (a*qv nzknd 3 - represented as resistors in the diaub( zm0 xkse 0dn5,v q3a;sa*qgram
- 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 elec1, 9ibwnvi4+azdie k7 07m6 bn e4obuttrical circuit at the right. If the current in all three reki tb, b7 7a0ibw 4zn1m9+i 4neoeu6dvsistors is equal, 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 repm q;s0xi +2*y zr*aiyhresents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or y*2myq *iaz;+0rxi shbulbs)
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 statemen.:+6re v u0 .6wk3 cmrprdq/s6rwrvk sts is NOT true concerning the simple circuit shown where resu 0w.wp+6rkker :sr qr s/.rv vm6d6c3istors 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 X (7)vi10 bzq,wpa kpy e m9fli7andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbib 7107mpziy)a(pqek ,fw9lv s X andY are 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 through the identified resistorw-(efg:g y *+j,zedzs in 5 seconds once the ci,(gy *j eezwzgs -:f+drcuit 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 folleq1j:3zrf ;wdm*r*no owing simple circuit have the same resistance, which would dio3efq*jwrz d r m;:n*1ssipate 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 curaz2 d8: y ilzb74l3sglrent through the 6.0 Ω resistor is 1.0 A. What is the powerasl4z87di2 3ybg l :lz 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 seriirl2hyr8nnf11m 8h.tes 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. What ishmy8r h1. tln8fn1ri2 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 parallel to9i)/.(nr bbw:ug fl qbv-k 6us a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. gnu9frqub:l)( ib-6k swb/ . vWhat 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. What is the maximum28f0fk wxlsnn8sb 5a , value of the current under these nals,5bs kxf8w280nf 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*i kfh n9u8.hn n3)igjjsea:, to operate at 120 volts f ksjiei) uh*: an,gnh39j8n.?

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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 flowsku zd:0y3rf e 5bi6f,r through a 4 ohm resistor that is dissipating 36 watts of power? ,z3y:rirde5 fubf0k 6

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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 fo3bas ie/6 ,pr.vz6 qis marked "120 volt, 600 watt.” In normal use, the current in it i a., pfreiq/663bvzsos

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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 1j l7kfz1wmnc5549as dio p+u2zq+qc following resistances could NOT be produced by a circuit containing only three identical 6Ω resq7pc+ k1n9 4lzz5q cw+1dso fu2ma5ji istors?

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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 equiva coy54;nl cighfz/+*q lent resistances CANNOT be pr cgzonc4+*; 5 h/fqyiloduced 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 9/uz isx/ ot8lm) djw/of different values can be connected together in different configurations. If all three resis/umil9 td xs8o)zjw/ /tors 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 re s:epk(q8h7 fu wvgy:k9dg;0asistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connecteydg0(w p e:;8hqv7s:f au9kgk d 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,grny )3i3n770 uxh;dhp iy: cs having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following7:i3 snhg nxd)7 c3u0ihry;y p 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 resistanm7 vbc(x v8kd4ce of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water d7c4mv 8xb(v kfrom $15^{\circ}C$ 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 isy6hyte1 rt1 w5vjy.;2i tl jq1 dissipating 36 wa 5hj1;yrltwq.y 11 i6y2jtev ttts of 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 amperesba :2eik4xg;*iz i)ay of current when connected to 120 volts. If th ik:x i;ie)bza2y a*g4e 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 h89)wjuf,-0ku) k1 shlkoc3 uqerfkb :ow much would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate ok: ko-0 ,) )uufksqcuj1kh8b9rw3 el ff $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 throc h4zzi/r +q3uugh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices bqiz3u/z4 c h+rest 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 si2o02tujsfo y iy4o15j x 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 of the computers can be operating at the sames2 uyi 24oo5y1f0ojtjtime?

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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 tlt 0n8h 6vf;9x5sr wk.pmu7aayu81 jyipb1 ; qo form a simple circuit as shown to the right. nq;15y xw j.u;v 7shuby k61lp88mpf0i t 9aar
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 simple r1go)5 yv ti:6wrwq fm,ew- 4ecircuit as 4g5,tw f)erv ome: qi6yw wr-1shown 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 and three resistorseu*wgv/+ egu5na z l )i(t bz1evq9+7v are connected as shown. With the switch open as shown in the di 9qveb gg+/tz( u1 zew7)5nua v+ve*ilagram 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, 3 jhz+ pv(r llq, jb9+txmnw/1a switch and three resistors are connected as shown. With the switch3t+rhb9/+1pnjz qw jvl x(m,l 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 am f)pvmi1 9d:vsmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram t)i :sv9 1dmpvfhe 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 right, what is the equivalent .le u )(do:lelresistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have idlu:lode .l)e( entical 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 resistaepbd f1s..; bance of the circuit shown to the right with resistan.d b ;s.pe1afbces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shon.qx)yvb wz 6,ws five identical resistors connected in a combination series and parallel circuit to a voltage sow vz)nxbyq. ,6urce.
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 identicap h4p+13xrsqgu: xvu;l;y1 wu7tqwf5x3 i(zk l resistors connected in a combination sey txps:x+wx4;1uv l31;3u(uk hp 5rgqqwzi7 fries 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 diagram, i +ric1).mu,a hst rqym* .ud.all of the bulbs are identical. Which bulb will be the brightest? )y r m*iaiuchtsur,qdm. 1+..


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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 ammet a3aau0 s0lgc6b95kehfam2o-yhql8 9er, a switch and three resistors are connected as shown. With the switch open as shown in the diagrag s9ubq2o5al3 9 -0a hek m0lyfhc8aa6m 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 switch and three resistors a u0.2kykyf*loxf)p15 jiv x)vre connected as shown. With the switch open as shown v.ulx)k*fky j5opix)2vf 1y0 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 ideal ammeter, a swi2ulwtj *18 ;gy/ ymv*droaw yyre0g2)tch and three resistors are connected as shown. With the switch ruy /ag 0r*etvo l1ymw 8*y22gw);yjdopen 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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