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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 exists +- k1xeunt4on93uzr3 g( aq ogin the metal resistor connected to the battery. Which one of the following choices best deskg qg(4zx o-n9ota3 n3eu 1u+rcribes 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 resistzez xp8x ie(gqh,h)*i wxm/)1ors are connected in parallel, the_________each resistor is the sax8exhip,z gh)z1 *)xim ew(/qme.

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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 lightbu k1s p 4zr3/snpjgi7nl. a9.kclb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coozpk.pc1 js/r.ilk 7n9 ng4s3aler. 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 replaced witqdn7 r5v1cx:uh LEDs. LED is the acronym for which one of tvrqxc:1 n5du 7he 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 grax9gqerc bu,;uh1dn , mmg1i p5ye;f /:phite resistor has 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 of the new resistivity to the oldi1:q mc; ,9r,e h nufyb5 g;u/1dxpgme 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 samhx tt7wa3hbr + 1 g1+t) 1t*ayoxkm*mhe material. Wire II has twice the diameter and twice the lemr yhg 1ka)t x ta+* ttowhb1m1*7+hx3ngth 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 tuqh6x )7+ujlhvyn, (o he 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 rh +xqyv u6 (u7nl),hojesistance 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 knbmp*q/2/hd piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mate*2dpm/q bk/n hrial 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 liglc k,0cxou88 ml2du l7ht bulb. He decides to modify the filament. How should the filament of a lightbulkldc,c7xl8 2mu0uo8lb 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 mat)yvi*5izq*l b erial. The length and radius of each resistol*5iivb) q zy*r 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, arel/r5ej tr1 n4dsa /st*tky i.0 connected to 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 5sry/et 10lt 4*t/isadj.kn rconnected 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 diou vpq xydey/uc6)z:uub/ .9)dw0dl4 agram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is mosd/u. : w vpu z4xd luq)u/ycd9)o6e0byt 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 caq4 i7aut72 64axuv: w2jawnhircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistorsjti4:uh4 7na6vwwa2ax q 7 a2u 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 d8rk2tdqq amm 0zcaoj87q:2q* uh( q5electrical circuit at the right. If the current in all three resistors is equal, whic2qq02 a7dqak 85(jz dqqtu8r:ommh *ch 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 righ(p( 7q;uke otpt represents a simple electric circuit composed of 5 identical liqpt;o( (e7kupght bulbs and 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 *-s1yg5zwzc/zu+ oib)t2s.et + ujbuNOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances?-tu*t1c+ uu5e2soz)zz/ysbi.jg w+b


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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. Bulb X is bri1omy,jn:c c.qofe/x5 7)bon6ut 0 n9mphc l)mghter than bulb Y. Assumemcunono cxoy .m n5q)b:0hcm9/f ,71j6)etlp 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 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 idew/q4b mzq 5q6 e-mr1t0jbym0xntified resistor in 5 sx/105mq-qm0e wtj ym4rqb z b6econds 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 resistors in the fol0cjvd ix;c p+5x. /xhslowing simple circuit have the same resistance, which would dissipate the greates5j;s/vp0 h+dc xic.xxt 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 thjb6bfp 9a9:f dp bmq8,rough the 6.0 Ω resistor is 1.0 A. What is the power b8,d9m bqja6pff :9bpsupply 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 R1,3cr ( zf4,qw:e3qez dz R2, and R3 are connected in series to a battery. Suppose R1 z4wr3 qe(zfq 3 d,z:cecarries a current of 2.0 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 differen/et*k2l/g h7ic izqh nky )6o.t resistors R1, R2 andR3 are connected in parallel to a batteri .y7/ktheo6hgkl 2*z ciqn)/ y. Suppose R1 has 2V across 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 ralg. -iss 1w-n;wcbway,,mj 3r ted 1200 watts and 120 volts. What is the maximum value of the current s y ,.lam cwb w;-,wjgi-31nsrunder 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 wapj+y(s *u,by 3 okkxz3tt lightbulb designed to operate at 120 voltsu pkyz(ks+b,3* j3y ox?

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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 dissipax+ b6(tewi er:ting 36 watts of pwx e(eib :6tr+ower?

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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 "1206nifl p.o z,.c volt, 600 watt.” In normal use,,pfz.n. clo6 i 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 resistances couldra i(rdy+*tx 5 NOT be produced by a circuit containing only three identicr+5a(x t*r iydal 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 follwxfmpl e6 +2 w2yi6y)kowing equivalent resistances CANNOT be producl+ym6)ix2 ey2 kwwpf6ed 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 values can be connected together in differe+ fcs uzku4rf a/7w9/ent configurations. If all three resistors are used ea974u/s z+r /uwkcffin 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 batte bkq7y7qf :0blq; wzqc6u22zw ry, a total power P is dissipated in the circuit. How much total power is dissipa7;l6q 2kz0 2bqyqwzwq: c7buf ted 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, having resistance R1 and R2, are connected in par ;ykuft9w+um+allel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is 9m uyft+ k+wu;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 designyc wp)dc(w,vxa jb -56ed such that it has a resistance of 12Ω when operaticp65jy,wa wc(dv bx)-ng at 120 volts. 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 resistor thae;pk;yz+j; eq +c6dtx t is dissipating 36 watts zx+ed+;kc;6; e ytqjp 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 amperes of current when connected to 120 voltn6;6y5hevl.a w7z x-6pm eynjs. If the price of electricity is v5elm6nwj6 a6;zeny. xhp7-y $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 wouldb rs,fiyq9 2)o it cost to keep a 100W lightbulb lit continuously for 1 year at a r fsr9,oy2bqi )ate 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 res,jh9)y/yp2 )aaufoc mults in a power of 24.0 W associated with the bulb. cp u9/ j yf)2mhy),aaoWhich one 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 compu6w*e 0q9 fb,zuvx9rpn ter rated at 500 watts in a 120 V circuit. If all computers are plugged intz0wr evn9, bx69pf qu*o a single circuit protected by a 20 ampere fuse, what is the 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 connectedxrh.ms; g (z rct,*2pd to four resistors to form a simple circuit as shown to txr,*. rc mghz (;s2pdthe 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 fkt.9.3 b zg.t3munry dorm a simple circuit as shown to the right. u3.d.yg3z.tkn r9bm t
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 (pkeo7g.r+b pn ze+a2, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammet2npg apk7 bzro(+e+.e er 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 an*on-5ll buj;*szchw5 d three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.c*nj5z 5b lwh;-so*ul0 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, azz t*0mx4r ba* switch and three resistors are connected as shown. With the switchzx0a *rbtzm* 4 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 shogrujn .e p5e3qg. f(,gwn to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resp f qgg(n3., e.eru5jgistance, 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 toz et7ay(bz:d ,g9pmm0 the right with resismz0 ytga p7e,9z:mdb(tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idey+n5 qpw*k/s top .cs8ntical resistors connected in a combination series and parallel circuit to a voltage scq y.t*w +nsp58ospk/ ource.
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 beqnfrws,e74 ne:1g6t t vig 20jlow shows five identical resistors connected in a combination series and parallel circuit to a voltage source.f 4gv1ttnq0n gre7 e6,2s w:ji
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 bulbslbyl vew0/iobtrd3s*co ** 8 : are identical. Which bulb will be thi0*eyo 8lbw/s3rl:t *cbd*o v e 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 ammeterwd jta -4z/)kn, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads ajk)t/-dwnz4 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 ideaad8ax*o 9w +ym(rmsv :a3-g bol ammeter, a switch and three resistors are connected as shown. With the switch open as shown ioy(sd*rx ao9 8:mab w agvm+3-n 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 p;ya xvy4 vd-v- 5z9yrammeter, a switch and three resistors are connected as shown. With the switch open as shown in the rvv;za p 9x dv4yyy5--diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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