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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, hfg8:v8tsfc( 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 ct(vgs:f88hfof 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 resisto:efh3ms yx o6:d)*axtj9hy ahzt 86f*rs are connected in parallel, the_________each resist:z* o)d*6saytft3h 6hf m9ayejh8x:xor 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 thin filament wire of a lightbulb causes the:k/ w+l3u,rj xpp;iyo filament to become whitejplp /o; xi+,y w:rku3 hot, while the larger wires connected to the lightbulb 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 lih*h:4ci u izfotza/ ))4a rkd/4l;gne ghts are being replaced with LEDs. LED is the acronym for which one of the atc/go:r4id )efz a/ik)*un hhl;4z4following 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 gra wj; ,l2qjgm)d2j np9lphite resistor has length L and cross-sectional area A. It is to jjg,2nd9); qlp2mwjlbe 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 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 aq d8 7c2dwr5lowu8vr /re made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, l7 qcrowu5d/r w8d82v 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 twice the diameter and half e la533ija07y uwbcf5 the length of wire X. If wire X has a resistance of R then wire Y woaw57 eia0j 35lucy fb3uld 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 lebdq 25j l,toz,:ry+ rangth L and radius r. This piece of material 2 ,5t:j +lbdrr,aoqyz is then drawn 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 Edxg - bofa-r0p,65-6fytvqvj pison wants to make a brighter light bulb. He decides to modify the filament. 6f-qj0-6t oy,a x fvp-vpgbr5 How should the filament of a lightbulb 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 resi (ohgb o97zrb.n h/g5dstors are made of the same material. The length and radius of each resistorhnb(5 7go /dz.bo9hgr 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, arefcwy. jzw56,ee4zn*sik pw** connected to a battery in the following way: “Two resistors are connected in series. , feji pkzwe4 5ws*z nc*w.*6yThis 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 in/:v55;d i ehkmga m.o+miyz/g j4f,sh ternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeyo5 m.g:kd;a iz emjfm/h+h v/g,si45 ter 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. Tpfjgm7r3czf,r7 w-(pa l 9 km+he three bulbs 1, 2, and 3 - rwc-r z 9mgff mjr,3la kpp7(7+epresented as resistors 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 right.2mp 50nwjfe( h If the current in all three(fphwnmj 25e0 resistors 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 represents a simple electric circuit compovg .q.vgz8 ix:sed of 5 identical light bulbs and 2 flashlight ceq:vg8zi v..x glls. 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 foli m( g h6zl;kl/)ca0ymlowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancecm m/g;6 i)(a zyl0khls?


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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 andYkeh01hu;blj. are connected in series to a battery. Bulb X is brig1h .e;hk0blju hter 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 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 t.p4 8mhqo; vzqhe identified resistor in 5 seconds once the circuit was clo zh.v;4mpqq8osed?


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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 have the s niwdqw dk9baz1 4/lp5kw/+)eame resistance, which would dissipate the greateswi5p)nd elw9a1kk/zb+ q w d4/t 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 through the 6x:t. k z +dl qc**ib(wrh :,;sckiv8hp.0 Ω resistor is 1.0 A. What is the power supp ,:* +thi:;rqd*kwp(8si kl. zbv cxchly 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, c1*0awu:u0k vozn(nn and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipv nncw:k nzau(ou10*0 ates 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 paral bv7os+d7t x5tlel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 +btx s57tvod7W. 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 12001)rf.cfb amc* k/u5mj watts and 120 volts. What is the maximum value of the current under these condit)jmbf1ac k/ umrf*5c.ions?

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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 j2d (5gpil4oh a 60 watt lightbulb designed to operate at 120 volts?4h5o (d l2jgip

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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 36 o7 (f b -eyewu2i nt36:v(ppkowatts of powerp pf-6on(t 2(ui7wvy :oeke3b?

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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 4m(t f (d4qgaz"120 volt, 600 watt.” In normalgm(faqz(t44 d 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 resistances could NOw)stuqzi .- 1 40 db7r;ldnvqbT be produced by a circuit containing only three identical 6Ω resistor4dqb1 ns;wq70z btv iu.-dr)ls?

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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 0w:1)bld zqsay *3r7turr.lg the following equivalent resistances CANNOT be produced usiu)y*:1a7rswrb dl3 ztlrg .0qng 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 differen0 xf bea3b/g7pt configurations. If all three resistors are used in a circuit, how many different values of total resistbpx3e7b0 g /faance 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 connywpqg m6ce)o rke15o. 1cl04vected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a cim410rl6gc wp. 1eoyoqev5k )crcuit 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 b/ xg/4-ye.)s brv orolc93zuparallel, the equival -3lr/x /geu9y bvz.bosorc4)ent 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 that5yrun d hk*yb98ik0i 4 it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would kb rikd85y u0 94*yhnitake 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 currenrdqf -+*zpoy5 t flows through a 4 ohm resistor that is dissipating 36 watts rd5fy q+-*z opof 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 when49rwe si :z(( l4fglbu connected to 120 volts. Il9l4u z4( seirfbg:( wf 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 vlxvz7fm; 62f3g hnm:it cost to keep a 100W lightbulb lit continuously for 1 year a g :6h7znmff2 mx;vlv3t 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 lia.( 1xundc k3ntb6a0y ghtbulb results in a power of 24.0 W associated with the bulb. Which one of the following chadn a0byxnu1.t3 kc (6oices 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 rat bpckjd5:-m 7y,kkb;xa8c2 ein n7)z xed at 500 watts in a 120 V circuit. If all computers are plugged into a single ciycd:)x,zj-b akp7 k n;8bkm 27exn c5ircuit 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 connected to four resistors to form a awdmhg9mpj9c ni.) 89y6w5 nfsimple circuit as shown to the right.m8 d9a5w j 6c y9hpi9n)g.wmfn
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 simplegl5f7+2j;ofp-fta01gnzrd )nases. circuit as shown to the r ff)np7f 0j.ggzt2e-nodrls;+as 1a5ight.
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 am0.et,;cfsndm6. ygthmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram themnt d, f0e;y6tc.hsg . 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 se+135y j7wr 0 kcetlwywitch and three resistors are connected asr0ty ec k35l17+jwwey 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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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 are coup3/r;e mk t( d:ewh+hnnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 h;:w puhm(/ker3 +tde 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 resistanso/pg /(kon)at0 -l uk(xb3u 7g lk2jfce? Assume that al g)u(-kxb uan /sfgltkj ko7/20o(p3ll wires are ideal, the battery has no internal resistance, 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 to the right x u p4-dndo7x;teplfs :l n(o;n tb705 with resistancesd(nn b5pst 0x7etx :l;o-ndp 7l fo4u; $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiveomgptftu;lh;z; n0gr1m1xo /.t- (ps identical resistors connected in a combination series and parallel circuit to a voltage sourm/zp nl(;oto0 grtp1;h-fm g xts;.1uce.
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 belowpw3zwn2;vypnz0h 2n)dx *kh1h+x.v o shows five identical resistors connected in a combination series and parallel circuit to a voltage spxywh)nk hz.1 d0v ;w3hn2vn+p2z* xoource.
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. W;l vf *z1bj r4s7yw(gwhich bulb will be the brigs w vz1rbg;f4(j*lwy7 htest?


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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 r9bpm2/v0axw, a switch and three resistors are connected as shown. W0/wxvm2 p9rabith 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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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 switbo-i +tzisim 3d7s5;yfmfo.8 / ( cgd wrz2a;gch and three resistors are connected as shown. With the switch open as shown in the diagram the amm+azisgoco(fs 3m2i7 dfz8timg dy. ;;w 5b/-reter 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 batte; p ajc-zf0-89hkl ylpry, an ideal ammeter, a switch and three resistors are connected as shown. With tlplap98-fj 0- z;k hcyhe switch 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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