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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 in the meu01: 8b buurcv5 lw7bgtal resistor connected to the battery. Which one of the following choices best describes the direction of electron bwuu7 b0r: g1cb5lv8uflow 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 af1o e)2unam7 nt7x/t u:nlf9ere connected in parallel, the_________each resistor is the same.) 79x7ntafonuu2nmee /lt:1f

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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 fiq2w6 o6w h7:fdfl- oopva2r e.lament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbe-fr.pfwaqv 6 :2 o2ho6 ldwo7ulb 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-nt(. ffme1 r zaav0e2eplaced with LEDs. LED is the acronym for which one n2 .-ma01 fr(evzefatof 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 bd* qmcx dvc096s/, znresistor 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 old resistivity of the cyl9/xc*bq cv z0s,dn6mdindrical 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 twice the ,wegm195f uun diameter and twice the length of I. If I has resistance R, II has resuemu 9w n,5gf1istance

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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 sam.8pyak1 ;0z w8gkq syte material but has twice the diameter and half the length of wire g8sqy;.az0kw 1k p8t yX. If wire X has 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;orr/k2 p, kit length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the prtk /2; k,iroresistance 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 makdxky.z4(dc+3k 35 rx kmkqi8he 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 produ qizkmd8c.k +(3kr4 d 3xk5yhxce 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 a yuc(t(uf8, 62kysmdtnd radius od ,y8yu26 kcfs mt((utf 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 connecrwgjnx w)n; 4rf.2ngl1pw() mted 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 resist2.fjwrnngm1; (wr 4)g)x nlwp or. 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 internwyavqcu-.v .;gu./vc al resistance 10.0 kW and the ammeter v/v-a;gy qcuw cu... vhas 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 right. The three bulbg /r(a5edxb3ue,o nfz/ 05c kvs 1, 2, and 3 - represented as resisto3 0udax55 ,bfkc eo//(negrzvrs 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 electrxb8wua9r ism ty4 wt8e621,dharv71 uical circuit at the right. If the current in all three resistors is equb u1tu87w8,r9he d1i2 arx6 twsvmya4al, 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 simple electric qdqb7om n6n zjx4o-6 90;rd rccircuit composed of 5 identical light bulbs and 2 flashlight cells. Whic76 4qmn9o rd6b 0n oxdzcj-r;qh 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 ihe hb h.w .l7b(db3ek ;ffm ;bk8-sb3concerning the simple circuit shown where resistors R1, R2 and R33w lk ef7m3.;dh -sbei;hbhb (bf.bk8 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 andY are connected in series to a battery. Buj v.yygm* z))vlb 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 represenm y zj.v)vg)*yts 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 t6d08pbv(mqjp4kg/ s v hrough the identified resistor in 5 seconds once the circ j8vskqb(m 4g/p6 pv0duit 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 je c7 -z8zoi6vfollowing simple circuit have the same resistance, which would dio-z7 8icjz v6essipate 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, elac n7o6n a+i0/jdh5the current through the 6.0 Ω resistodn05/h 7jconlie 6 a+ar is 1.0 A. What is the power 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 series to a battery. Supp8j4mndtp(l q.-n1j/v ,n lbk qose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of powekdl(-lpq,njn1q4 n.j8tbm v / r. 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 connecte:wken h6.ux td21.b kkd in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 diss. 6 xn:uhkk2tb1dew.kipates 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 128safhd-z p9ouq( 8 z z1m)k 0yporu:-y00 watts and 120 volts. What is the maximum value of the current under these condum) s -khz9oo: (0a-uz 8ypyzrfp8q1d itions?

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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 to operate axk* ;g u2c4 vj2ffmil:t 120 vockf:xi4;lmugv *j2f2lts?

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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 dissipating 38:w)er ar3tg ox6+bmx 6 watts of power?rgxer6a) wxmb+8to :3

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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 irok; ddn4fphk1sbh8 -4c nn6d a9;ko*ain used to press clothes is marked "120 volt, 600 watt.” In normal n4fs ok6chdn 9- kka1*b4;a ddh ;n8piuse, 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 ssfl./ sac9.9sc p,pacould NOT be produced by a circuit containing onl..fpla9ps9,/csss a cy 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 fol)l- . od8kb3,r d j:xvgvkvtw8lowing equivalent resistances CANNOT be p r td blv.xv j38okw8:d,-kvg)roduced 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 valuw en63cu 2zn(3kkp)kz 3hmp. (3 ghvpbes can be connected together in different configurations. If all three re chkzezp(kh3k 3bpng6w2p v (3mu )n.3sistors 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 total power P is dvm in*qx3d ,-ja8 yi+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 resdya* j +md-8 niixq3v,istance 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, havin8y n+qexvvqm6x, +i 0ag resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statementva yqie0 m qx8+v,6n+xs 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 hjukj .s):8 rje-gp;cfas a resistance 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 f;e 8jjcpjgf)- ks.ru :rom $15^{\circ}C$ 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 dissipating 36 wdcvzw;b e7 a/u3m1k. hatts of powek 3/bz cwa.1u7hv;m edr?

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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 vols4a*v ov l4am4ts. If the priv4 o*asvl4m a4ce 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 wof4u zyhqd7:p:n v 4x7luld it cost to keep a 100W lightbulb lit continuously for 1 year avqf 4d zy pl7nuhx4:7:t 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 resudv cftaekx6* ar9*)w )lts in a power of 24.0 W associated with the bulb. Which one of the following f6k)*tevaxr w9) a dc*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 computer rated*f7jhbgm , qyv61y9m8y 6wk fk 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 byfy8v,1mk fwm9 k 7*6y 6qjghoperating 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 resistors to form a simple qf5ifj eakk) 5mpzh)-m ykxx66 l3)hz, (t9hjcircuit as shown to the right.xzkf 9afp)hz3 yt j-(em6 hkqjk)6 h5xm5,l)i
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 t d6k ; h3axx1jse1pj) p9 k l5.lubxmz+ifn93mo form a simple circuit as shown to1 5lkkf jm9 .ula s3 ;pp3nmx1zjb 6x9edhxi+) 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 ammete./hsi;bb0vf d*ktsus g i1f;i 6v8+aur, a switch and three resistors are connected as showia;hs bu 06;1b+usvv/d* sffktg8ii .n. 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 ammus0v6,s ue n 1bcu7-fhq-z mo;eter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the , ;qmfsz-1se7n6-buuc0v hou 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 three resistors ar vx-5*qc9q3bp( ly lyme connected as shown. With the switch open as qy p y3lbv(5*l 9cxmq-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 c :u;9kdjw6 sf shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance Rcfkw ;d9 :sj6u.


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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 rigf4(hn l:m r9wpht with resistancn4(lwmf rp 9:hes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resise ggdi*6( -skdtors connected in a combination series and parallel circuit to a voltage se*sk 6gd -g(diource.
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 co-r h.7knhair+/kgpwp7 va* 7n nnected in a combination se+ngpah k7w-7rvra* i7hnp k./ ries 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, all of the bulbs are idto2+h8l elu 6v7qlh4wentical. Which bulb will be the 82lq+ wu6t4lohvlh7ebrightest?


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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 5j3 v)*qc3bdw a5 ,)bf njmcnvideal ammeter, a switch and three resistors are connected as shown. With the c f3n jv)mdb)ba*5j q,nwv35c 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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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 thsx+am1ddk(d,6ej ni1qp6zk* ree resistors are conneczm1q ndji,e6* d(kpd1 s x+ak6ted 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 ideal ammeter, a switch andff8 40; sg9u de5qjrz7c so5sp three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rf; 7fc9 upsse8 0dgq 4szo55jreads 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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