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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 eli-;wh bm2 et0v* gai/oectric 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 of the electric field through the interior of/2h ;me iwi-v *b0atgo 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 cor7y tju-u1o.ooh-u ;-c8x wwe nnected in parallel, the_________each resist j xeur-;coh -17.uw8 wo-oyutor 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 lightbulba/,dwed);x j kk+t jp ef( xi;n3tjj9. causes the filament to become white hot, while the larger wires cijjwn.k xfe,p adj(;) xke9; +djt t3/onnected 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 householcnyp;/an8*asr5d(u jg .uu9ld lights are being replaced with LEDs. LED is the acronym for which one of the following choicesr d/ul.( cj* g un9u5asypa;n8?

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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-sectional ar3 qd:k ;t i. fznnge*iurdt.ib6l,;n;ea 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 res;ren3tk;bgld ., ifnd;.qt nzi6:i* uistivity 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 has twic58 hr ;vjkj,imx49ylme the diameter and twice the length of,xlm8rhi;9v m jjk45 y 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 the same material but 17 axs wlh.hsj, tt,x,has twice the diameter and half the length of wire Xs7jxx.,hhl tws, ,a1t. 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 resisto ah 5lbvf/(of;7 9s9 rgjtqkq/r has 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 resistance of this material because of this proces/q vkfob (g 9th a7l/5jr;f9sqs?

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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 Edison2vjn)/ npboe( wants to make 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 produce more ligeo (p2/jbvnn )ht 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 m 4od41c v,2:tezr hbglaterial. The length and radius of each resist,4lb2c1:z t 4go dhevror 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 k ,vizh(tn;zdtxqx 32)zh7 a(a battery in the following way: “Two(nv(zh7 x)xiz;d,3qtkh z ta2 resistors are connected in 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 diagrabt kt4x)8 2u0c )p r8rq4/hu7gngrne im has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 o )rn 48egp)kg n8/x4urbr7ci0tu h tq2hm. 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 bulbs 1, 2, ac-:2: 66/ug ny1aqt ewft bww(c.ysannd 3 - represente q /ng(a6t bs n1 fwu2y.:w6cya-wtce:d 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 rightqm q-2wy ;6sgx. If the current in all three resistors is equal, which of the following statements must be trueg;s xmq62qy -w?


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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 cirf2m/1 -iymkmdxi05ac cuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (ormfx/ 5d 2ym1ikc-0iam 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 conc5ifs8c *agugn qrs3heo5d/9 , erning the simple circuit shown where resistors R1, R2 and R3 a ,*f85e/ganhrgd o5i93qscs ure 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 and aq;4mnx l:o k:l/ug-l,zqm:s Y are connected in series to a battery. Bulb 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 represents -o/, x g:nm:aq: luslqzl4km; 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 th2abi1o 51jh fnx 6cyn,rough the identified resistor in 5 seconds once the circuit wfyn61cbj a 2 ,ihno5x1as 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 ha ,z)(rud5kx wao6n 0pe5diq6v:*t mamve the same resistance, which would dissipate the greatest pomzp,5dk)6x5i 6mw(at*vdr un o:qe a 0wer?


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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 o u2:i:6c /ecklx4swk kh6)zdcircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V:clh/k24k6:oxcs6ize)dk wu ?


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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 bg zevll- ah n*/u52xxtfb 9--2jdeh1mattery. Suppose R1 car lxd *ej-af- b12z9n5em-gu x 2lh/tvhries 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 different resistors R1, R2 andR3 are connected in paral 2yii czko431(vdaw9ilel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the iko9a cz4w21vi3(yi dcurrent 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. tu*+ll. yse-jWhat is the maximum value of the current under these conditions?+y.s- *jtlleu

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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 oper gy3r;12+nx+qsvcw r qate at 120 volts1r2gy+r+q qnxsw;vc3?

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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 thrr /l*64t2ooskso( rumough a 4 ohm resistor that is dissipating 36 watts4so/ l(2kuo t6*or mrs of 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 iemqb cduy )c4z-- y*q5s marked "120 volt, 600 watt.” In normal use, the currenmd54cq-ce) z -uy*bqy t 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 NO (j-3ci4jji zqT be produced by a circuit conta(4iqjjjiz c-3ining 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 pf)x*3njy ou8three 1.0 Ω resistors. Which of the following equivalent resistances 8 uofy nj3*p)xCANNOT be 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 values can be connected together inhvoh )x9 k528jdevj, xv(2fbz different configurations. If all three resistors are used in a circuit, how many different values of te8o,9zvkvj) 5dbx h22(jxfh votal 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 t; q q5vjwjzpmd d2/a3ktq7s /64 nw7kgotal power P is dissipated in the cir27 d/m7aqq 4s5j qwngp/d63kzwjkvt ;cuit. How much total power is dissipated 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 resito7 sd nd/p, un.0v7bfstance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the rt0n.uf,d7sv pdnob 7/esistances 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 resistanc yv-h9wf 3fggxk 8.o2qe of 12Ω when operating at h38xvgk. gw y f2ofq9-120 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 r7dvf(zz l7 d(s4m-bf1xp o)gqesistor that is dissipating 36 watts l g4fox1 dzpvb7(q)z -(dfs7 mof 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 9*jaeqr 7sgxb9zqv 9pfpp j/)(jn* 4acurrent when connected to 120 volts. If the vzq9(9j /*pp*nes bj)xr p97 fjqg4aaprice 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 it co2, 9*d(m82r dnu r0rpa miwp8rzdu*khst to keep a 100W lightbulb lit continuously for 1 yeku0mu2rpir nz 8dprdr w,d* ( h82m*9aar 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 currene :nup/s*9mp ev8x bor-r,e p1t of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which on1/ :8ppeue*po- s9 ,xnmrvrbe e 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 ofgcc :gb,9ys8/ ht0dnc six owns a computer rated at 500 watts in a 120 V circuit. If all computers ar :hsg,yc 8dg/bnt9cc0e plugged into 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 simplew 0b.vxj(tqdy( 2;hgz8( s ief circuit (t bxv fd(z8h2sje.yiqw(; g0as shown to 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 batt 9cfh6i2u7uvj) la4yvery is connected to four resistors to form a simple circuit as shown to thha 64ufyc7 9i l2v)ujve 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+cl9a*6xo)tmgsu+ qt/r -kl a nx/;o k, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reax;l xmlc/u/aktoqrgs9 k+ a)+t n 6o*-ds 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 and three resistors are cons -.l9/rd 7yb0pby eq6 ilmk0unected as s-yu r.mlsq9 pe6lbd0y i0 7/kbhown. 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 battg cw4 ij/ni9m+ z,xa o3w )tf)(46vcbeyqdhy 8ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in thb98enoa ) cwt)ijwqvgdi , +mc6 f xz3yy(h/44e 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 eq+5(pk)+ach srt. hw sq2 r n))fdvqi2muivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, a2d2nhw5kqm h +i.vr+rc p a)q(s)t)sf nd 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 shownz5; 5 bmdiefsx3pe9)t to the right with resistancems55 ;x)pz3dt ib9e fes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a combina v lqky(vk,2r0tion series and parallel l,r02q kkvy(vcircuit 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 identicaztl2 vqfqttbc s2 ;3 -d8*g;nel resistors connected in a combinatio t-z *ft2g;bd23tv8qnscle ;qn series 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 arec+bfn2b 9hbr) identical. Which bulb wilfhbr 2)9+bcbn l be the 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 eblx*sac8v0 pty 3 ,-rammeter, a switch and three resistors are connected as 0r,8 b*lvac- tx 3epysshown. 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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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 resisv40fzpsq mbb+u;v ) b6rt3h(mtors are connected as shown. With the switch open as)b( hbv4bs+zqmtv;0prm u3f 6 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 s18bsi: o3to r0rh oq(vwitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 t r38v0oo1bhsqior(: amperes.
When the switch is closed, what would be the current in the circuit?


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