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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 elecpo5 +c6hzz n7wsul jui8n1p:nj( 8xr 7tric 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 throughjn(8p o lpn6wu ujsn7z1:87izc5x h +r 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 i 8uxp2; vaan7f.bj2sbdspm5xmst , -)n parallel, the_________each resisvba5sxb;s 78jm f2ma nx du,).tsp-2p tor 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 throd rs6du)2yla-p*ob 6cugh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thio s 2*u dr-6cp6ldya)bs 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 househ; qxu*,x* e pmxjxk *8xjhd;r1old lights are being replaced with LEDs. LED is the acronym for which one of the following choices;qk r *xje*jdx *xxu;1p,xhm8?

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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 c,.kbxnx/e9t rp 1gy3L 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 th/ .3pxcr nxe9g ,1kbtye 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 areyq qosa rt;wfd,a:jpp,kb: o0x 54u.- made of the same material. Wire II has twice the diameter and twi:q.u app;xt5qw-jasf, ,y40od :orbk ce the length 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 the same material but zlzfq.5 / pwd9has twice the diameter and half the length of wire X. If wire X has a resista d/pzqlfz. 9w5nce 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 length L and radius r. This piece of mat g o0b28sfg1 : fli(gdy+k+fgperial is then drawn so t+1g8b0yffi:dsgp fgk+lg2( o hat 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 Edison wants to make a brighter light bulb. Hr;t 1(yoaw,wzfin )z1e decides to modify the filament. How should the filament of a lightbulb be modified in order to makw; of ,rn)zyait z(1w1e 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 mate -s8kxm 0;nm*sedz1b/s 7l dqirial. The length and radius of each resistis1-s b8;zmdx ed l m*kqs/0n7or 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 4dqx udnqs39tf0z234bypq:t R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel qndu:4 3yqzs t2xb t9 d3q4p0fto 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 5vzf3 ip ,vk9 ascv1k/u(uch /in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readi(a/9/vciu315v, zkvcukfps hng 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 circuitgx7 g5fg0q m1psk+) pl shown to the right. The three bulbs 1, 2, and 3 - rs q50gk +g lf)17xppmgepresented 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 rightdz 62x ihug cqs2xs9-/. If the current in all three resistox6x h2/dg -9us isqz2crs 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 elco0m)0zhur-x;b 2 mdp ectric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or )zh2 0obpdr-x0mcm ;ubulbs)
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 concerk :come(.xkf6 ning the simple circuit shown whm: kkxfo(.6ec ere resistors 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 c q-qrn+ t7tkp*cj2t;eonnected 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 choice ;c eq7 n+-rt2tq*tpjks 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 idl hwuxy +av+futuz2(a3j02c 2entified resistor in 5 sehw +zt u2u(f2u+l0j2axa yc 3vconds 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 f .vloa+hg/tg/j l /td4ollowing simple circuit have the same resistance, which would dissipate the greatest power?vtglo.lg4//d / j+ aht


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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 6.0 Ωyyyn76in+ pelw),m va f 9xk08 resistor is 1.0 A. What is the p ye+69k 7xa,iv8y) 0nf ywlmpnower 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,.l1v6i3n3xggiw)l5 s :otbi y R2, 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 dib.xvi ys l3 :1lin53og6)i twgssipates 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 connect 7vr*xw.xf ln z6710w7vehxke ed in parallel to a battery. Suppose R1 has 2V acros7.6krx7 hev1ln*e fw vxz0x 7ws 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 rated 1200 watts and 12f)gv u ml.l9jj.6kb1i0 volts. What is the maximum value of the current under tkl 1m.jlvg9jf.)6 b iuhese 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 watt lightbulb di,yzo+o1u,rd g(jl 0z esigned to operate at 120 vol ,oduj zi+0go ,1zyr(lts?

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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 curreit auh wff*oh f6a6 +xr:e).7 dtg)oi1gx xy69nt flows through a 4 ohm resistor that is dissipating 36 watts of power?ufw7 o+6g iah))gthx*.xy td6if 1fxo: 6r9ae

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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 "120 volt, 600 py)rk(d1d rhy0 0m,,tave oi6 watt.” In normalr,a(ykm0r,1 6 )ev dio0phd yt 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 followinkfj .g6v :my:yy-dg/h g resistances could NOT be produced by a circuit containing only three identic-ygfm6d:jk:.hg/v y yal 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 vo7nolr7n5a 0 resistors. Which of the following equivalent resistance0 lr5naov7on7s CANNOT 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 bo +)(nnz zsv,6tvenr-hz z l+)e connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resista +v v)6-n+l,tznr(ozz)ezsn hnce 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 9;q*ph5hd-uh vxs0tgry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connecte*vu 9hhdtx;p 5 s-qhg0d 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 parat1ihk9cm 21u allel, the equivalent resistance of the combination is 51achk m19u2ti Ω . 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 c nlxtv)+cka t)i:( 9zthat it has a resistance of 12Ω when operating at 120 volts. What is th) ztivct+ka (cxn l9:)e 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 resefehx n*ya*ux f.+8(eistor that is dissipating 36 watts +n.fe(e*hxfe 8yx *au 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 bf y+bqk*/ wf0of current when connected to 120 volts. If the price ofk *q0bwyff+/b 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 k hoia j2*dnb/ hn3*byes-sr6)n ;d d7much would it cost to keep a 100W lightbulb lit continuously for k)*n /d6sh ibsyd*a732jnrb n ehdo-;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 curr,jtr0d v h.wc:m oix20ent of 4.00 A through a lightbulb results in a power of 24.0 W assoco0rh2 . 0icm, djx:vwtiated 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 ofxddr + /tq4(e0 bj;uhp six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by e b(x+tuqd;dr h/4pj0a 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 resistors4 x748/ ad,pdfzfr ye +axpu)0;u59q cjkqp dj to form a simple circuit adjd)7cp paxk8 xa /fqyu9;rp4j+ e,54u0zfqds 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 battery is connected to four resistors ssuf)io .fjraxf+: sv 3(f1y9 to form a simple circuit as shown to3:f1r9sfaf sx )oivfu(y.sj + 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 batteru0/yo9 jk hce 8:pb3duy, an ideal ammeter, a switch and three resistors are connected as shown. With the shukedp /u c0jb8:y 9o3witch 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 ammeter, a switch and x7 *tic1t:f 9ry sv5kvthree resistors are connected as shown. ti5r t:k 9cs7*1xyfvv 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 a3p*(ic o/p yhimmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 op(y/i3i p hc*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 equii*u0*:t oagp-) kwthevalent resistance? Assume that all wires are ideal, the battery has no internal resistan:p)tkua-iegw*t0* oh ce, 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 cir4ca zx yc n)xf x.kg-pxp(izr1,56g+ pcuit shown to the right with resinzc)xkrz6 5p x,c+px .(g1p4i fga-xystances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 shy96i 9al2 ufivows five identical resistors connected in a combination series and parallel circuit to a voltage solu92f9i6a iv yurce.
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 connected in a combifo2 y7s al0s8lhvpog2nh sfj4-+ba.7 nation series and parallel circuit to a volb704a+js f2oap .2n87shv-f lyh glso tage 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. 8q6g/tgm inwi m r6;,e d17sneWhich bulb will be the bri6m;nr dii6g7,t8/wge en1ms qghtest?


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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, kcpiee3k ; 29fa switch and three resistors are connected as shown. With the switch opek3ckfpe ie;29n 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 ammeter6 yqv7k2lv gt8(c 0s c+daofh7, a switch and three resistors are connected as shown. With the switch open as shown in cygdkh0 loqsv68+vcft77 ( a2the 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 and three res, u01a(fqvh2o ood0ikistors are connected as shownvi fo, o k0u0dqa1(ho2. 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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