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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 circuip -j ag dn:2c4hxg8rr kxd9u)+t shown, 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 )8 +n2a9x cgjruxd r4dk-g:hpresistor 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, the_________each rek f:js7, q(9iamb1vhzsistor isimq j719,fz:k bh (sav 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 thvl7r wd5g8t 8rin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coo5ld grw8r87 tvler. 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 with LEDs. ovfg+ 91inegv, 4lxr*LED is the acronym for which one of the fo 14g vr+v x9g*eln,iofllowing 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 graphit(l o:eay*uxyfn r-e 0+e resistor has length L and cross-sectional area A. ere*o(ynf :axy0l-+u 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 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 hae4/ss w3q5m k.9 uslf m.bbc5qs twice the diameter and twice the length of I. If I has resistance 3sbqmbk54mfl 9uss w /.qce5 .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 twice the diamete.prot0 tbc x/s hie8uft.9 -4nr and half the length of wire X. If wire X has a resistance of R then wire084ntu.9i p bthfe -txc.rs/o 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 radi6d)inky7s5l66+jaah s 2cvs fus r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this 6vj6as6f ksd7ci2n)hal +y5s 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 Edisvlx dok 2-myj*a-p40+ irqz:xon wants to make a brighter light bulb. He decides to modify the filament. How should thpra4yjvi +2xzo -*:xdqlk 0-me 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 resistorq8 /f+hfo5 :xj ddv1xvs are made of the same material. The length and radius of dh+1x5/ xf8:djf ovqv 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 to a battery in tdq ta38foo s2igyt:5 v 3jk*4lhe following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a thirf4:g3t ak*oij2538q s vlo tdyd 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 c8-w,9 q:,wsbgtx x)f4 e * vtkkhbzo h*l*b0hoircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance ehxh-g9q84 tb l b*tfow0h,w x*)bs ko:z* ,kv25.0 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 thaz.t8lw ar3.7( dnz /ag6dngue right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram a/6zdg(r.n n3agwut 8 al. 7zd
- 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 rightiup8i* )q)gt s7 p-qzr. If the current in all three resistors isq) 7u i* p8ir-zts)qpg 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 s1m8 zx;h+crq rimple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) 81;xhr mcqzr +
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 the simple cirn)j8td-:.amgg a ml:j cuit shown where rej.t:j)l:mgdm ag8a -nsistors 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 andY are conn2:( s,)1e. uwoid ttxfq9 q ilylsk-b8ected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideayub:21,( 8xilioskt t sfwd-.e lq9) ql. 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 thub t(*v29byr pe identified resistor in 5 seconds once the v br2ub9(tpy *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 following simple circuit havf3 3lrw b3p mvgv80sy,e the same resistay pg333vl0f8wmrv,sb nce, which would dissipate 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 current gj42lzz3 dppscal)c cv,q;vnv,2+q0 through the 6.0 Ω resistor is 1.0 A. What is 0vngacc,)jc4;pzq s vz, d 32l2+pvql 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 ine(mgqxr9 ig+* series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance o e r(gxmi*+q9gf 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 resis4ppw22 / v6mpj2webm*h zce3 y q9ryj;tors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, p ywpm;c2 e2hb2qy469pw*v/mjzjr3eand 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. What isu3ufzh j /ur5l;.c)hw the maximum /z uwluh r3c5;j)f.huvalue 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 watftf (m(ghw.,cha7gu nw) ; 65i4hes lst lightbulb designed to operate at 120 volt4( fhsfhs e;l),ai 5 ( u7.6nhwmcgwtgs?

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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 curren jl blbyznn96(9rfn.) t flows through a 4 ohm resistor that is dissipating 36 watts o 9 jn.yb6fnb (9lnrlz)f power?

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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 "1em+c6 )dzicxsg )o3k p /jem up;/g5(t20 volt, 600 watt.” In normal use, the current inzc/um 6tg)/jdc3k (m p e) p;+esx5oig 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 NOT be produced by a circuit conj*o (g(0m,e nubvogc9j h+nr -+, o-m0 gnhoj*r g (bj(9evucntaining only 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. Whi7*omq cvd 5p-ur uv2*k2tsm71sgwns/ ch of the following equivalent resistances CANNOT b*tow s*d757cpgunk 2r s2 -v usmq1/vme produced 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 valumbbv2jy3n9 ;kaeveq8j 2 :3lj es can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prb3v9:m;n2jb3 a2ey8kvj q l ejoduced?

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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 batt 9aq5g;vjsp z9ery, 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 battery? Assume the9 aq95 s;zvjpg 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 resif f3qeq.o9g q7o z*h(o5)csynstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following state.75)e s(hqy zooq* offcqn39gments 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,tyzed3b0x g) it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would ta)gzdt 3xbye0 ,ke 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 wujm-f (b--crz cbe**ad7a c1 resistor that is dissipating 36 watts of e1zj a-*dcc -*b(w ac7m-frbupower?

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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 dff0f / 4ldj*yhraws 13 amperes of current when connected to 120 volts. If the price of e4f /dffylj*0h lectricity 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 1x 7jw8po(l-a wwt2 5fhif+)gw00W lightbulb lit continuous7oa)g-5+( ij 82wfwxft wwp lhly for 1 year at 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 luv3ksug;;gh /ightbulb results in a power of 24.0 W h; /k3sggu v;uassociated with the bulb. Which 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 computer rated at 500 watts 1h oey8wa8hc5in a 120 V circuit. If all computers are plugged into5hwy8co8ahe1 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 connected to four resistors to form a si7avcs*) vu2q0w v gz0rmple circuit as shown t20*vqga uvcwr7v 0 sz)o the 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 resistorsr1d +rjh:- fnt to form a simple circuit as shorrd+n f:j t-h1wn 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 amme ec+glr*p++ a(ozbog; ter, a switch and three resistors are connected as shown. With the so zb+l+ecg(;r +*oap gwitch 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, ais2;4 lccg6 7irq)ysan;ko 8) zg 7lcjn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter6ins 8czgc ;);l7qk o4gj yalis27)rc 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 3vwo0*ma olmmocwn(,dm( c:sada e4s2v( (.f connected as shownf m(,wwcvolo(.e4:2a nc dma(*o( mds am0s3v. With the 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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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 resistance?cz* fr*2v +9l1icmtud Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical r m1drl2uc* i+9vcfz* tesistance 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 jnzm7t*3q hu i5aux,l w1(sn3to the right with resis izax153whnmjq(*un,u7lt 3s 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 buqca mo52 p g02illj)5*cg7zts- cxu4elow shows five identical resistors connected in a combination series and par0o2clux-tj *ci7 cgz2q4g5l5 p )au msallel circuit 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 identical resizik 5tth2;ws/stors connected in a combination series and parallel circuit tzh5 ts2tw;k/i o 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 identical. Which x8zh, p-v5* a(er:skw5yf2q :oot iflbulb will be the brighte:iyleo2a t kf 5hoq*zsxf5:8,-wpr(vst?


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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-s5sdhtyy r ,jls85dbgb17 p8er, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the aml8j18 srydbsy5 sbd5-tp7, hgmeter 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 resist26l)+o3/ bh sqccsk7u:rzpz uors are connected as shown. With the switch open as shown in the diaupl3 hzrs:c)2 7o b +c/q6ksuzgram 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 and three resistors arq85gh7jbl.m z e connected as shown. With the switch open as shhzbgmjq5 87.l own 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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