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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 metal resiszaws(l h8u3ja ;i :*zgtor connected to the battery. Which one of the following choices best gi38s lhz(ua zwj;*a: describes the direction of electron flow 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 are connected in parallel, the_________e+-u,98d*eouqjmqs fm ach resistor iu9 +8u sdqmq,f- ome*js 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 causesgfrhx10 u c9)x:3d igs the filament to become white hot, while the larger wires conn gh3)xcsd rugx0:9i1fected 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 housra)*m:i+air8 kb ,1fsscj cb ,ehold lights are being replaced with LEDs. LED is the acronym for which one of the following choi safm s kbr* 18rj,ci:iacb+),ces?

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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 grapi2 dxlir :ok(s0y )4tehite resistor has length L and cross-sectional area A. It is to be 240irs :kdiy)l eo( txplaced 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 hkzv (8/zgi, /sz llg0has twice the diameter and twice the length of sg0ih ,z/ vzl/ gkz8(lI. 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 materia.ut3b2l)rrok pg4eskv 68dt. l but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would)tu db8pgkv2.6o 3sr4 k .ertl 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 piecfrm6 i*lik/q2e of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materiali*ik/ qlfm2r6 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 ls-yujon)t1r.ki7mm s15fy 20 4sp iqto 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 light at a giv)qp05 u st74mmss- 2 r.1li1yoyfnijken 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 oj y+xfh :ab 71zz*4xuqf the same material. The length and radius of e h+z:yzab u7 1jxfxq*4ach 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 connectedn9 ;jfv7(p icu/c7pur8)e ybp to a battery in the following way: “Two resistors are connected in series. T)pnp7i/(u c ubp8cr ye7jv;f9his 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 thr0k5c zap)zk -: /fc 01pixchye accompanying circuit diagram has internal resistance 10fz-51 cc0kc h)0/p iykprza:x.0 kW and the ammeter has 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 sf(r cr l2r3 /ptv2dzn-hown to the right. The three bulbs 1, 2, and 3 - represented as resistors in r2t2r c vf 3(p/lzdn-rthe 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 th2 cdo *,wpeb+6o/kcp ze right. If the current in all three resistors is equal, which of the following stoc*+kp/, zbp 2co6ewdatements 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 simplfbz tt3c 27e+xe4paxjx/ .o1xe electric circuit composed of 5 idex +e72xbo.t tfe a/xcj3p1xz4ntical light bulbs and 2 flashlight cells. 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 following statements is NOT true concerning s dn) i31uwk8q2ir-z pw45dop the simple circuit show25ipsn8-p kqu di13) 4wwozd rn where 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 connected in series to a battery. Bulb X is bri4d(vyfo u8zg 7ghter 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 chyf u z(v8god74oices 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 identified resistor in5 e in57benoh; 5 seconds once the circuit was clo ih5n7en;5eb osed?


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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 iwx(yc qvw/y09)ds 2w resistors in the following simple circuit have the same resistance, which would dissipate the gw 9xdsqiv)(w y/ wyc20reatest 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 dcom1 qt,h *r9ldocd)2iagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power s9 qmocrch1* d 2,otld)upply 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.aqpm mo5q(881n+wnr lv 93txg Suppose R1 carries 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 acrr9 tx8(m+o gmqn3pq1w5nalv 8oss 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 parallel rx t9h2p0. hpdto a battery. Suppose R1 has 2V across it, R2 = 4Ω, anpdxr2 0thp.h9d 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. What2c w:c l0+pqgf is the maximum v+lqpcf w02g: calue 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 watt lightbulb designedzy u8o: 84swgt8al h)l to operate at 120 wl8hual8y8ts:z4 g) ovolts?

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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 dissipatinv9kyx6v, fks:7xji1qg 36 wattx6v y79j xk,sviqf1 :ks 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 p kf/(8qu3id1t1jdzfy ress clothes is marked "120 volt, 600 watt.” In normal use, the current in it j/3 ftf(d8zq yu1d1 kiis

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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 circuitnb.7 (v5uls 0/er ,5pwtl pznu containing only three identical 6Ω rewb.7e( lnpv,n50sltp 5u z r/usistors?

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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 fo brobv:/3l3 hwllowing equivalent resista3:b r l/h3bwovnces 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 be connecteg-mc-f f-m 03cc+wu red together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produc cwe+m- cm cf0fgr3-u-ed?

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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 pcx 5genz g56v+u2yn c:ower 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 the internal resistance of the batte5nn :gxuygzcc 26v 5+ery 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, havemf-y zdztxq9b) 141d ing resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about thex1zdt-zey)m 9f4qd b1 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 has a resistance of 12Ω wh1:w/whl(j 6km9e--h, fj ;ds rembpwoen operating at 120 volts. What is the minimw-1lh /,m bw( s f:whekjdorp96em-j;um 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 resistor that is disqg7ctbv3j 38xsipating 36 watts of powvcbx q3jg3 78ter?

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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 connode 720r wjh6x2 a.lbwected to 120 volts. If the prixlwedh72jaw2 0. bro6ce 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 cost to keep a 100W 6xp127wyo+h 2(rwdq au3 ydwq lightbulb lit continuously for 1 year at a ra2r23q hy y+wqxwd(d7upa 16wo te 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 l fvd ,mkce --i.cm4td+ightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best repre+ ckmt.4vcfiddme, -- sents 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 :m v1-tueo0hg rated at 500 watts in a 120 V circuit. If all computers are plugged into a single cir01m: oeth vu-gcuit 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 c+;fauiy bh9;r 8 (yuo4zccv5(w0 yqfis connected to four resistors to form a simple circuit as shown to the ri(vf; yc4oc; fhuyu8 b 9ai0qr+ywcz(5ght.
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 r inc3x+) 8nv5(,pixd9dauad o form a simple circuit as shown trii,cpx +d9ad 8) ux(a5nndv3o 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 ammeterl 3k6(5 xrph duy3 r/ dtx7f;1.saouti, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rey(.xld3idoh1/7a63 fru ks5 ru p;ttxads 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 thu j4/aj0/s( 5.mxdb; + z3/hl.ymw h lvpzenvxree resistors are connecte3ayhx/el/ (.0. jlxdhuv 5/4s+mj;w bvp mz znd 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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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 arr-a+1 fln)(z0 jxcewje connected0fcl)n 1 j -jar(+xezw as shown. 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, whatx4.*3 ,hysvia/n(b sa 8gl: k9sea8yv/ xh pmt is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors haayyxbv:/tlh89 pgax,ses.3km v*in ( ah/s 48ve 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 o..ac8ced,9pp e +dfzctre.:h f the circuit shown to the right with resistadfd . ,8+eec9.cea:ctr zp.phnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorea0iy n(gv55kf z qey 591j6rzs connected in a combination series anzj65r(yaeq5ve gy 5kzn19i0f d parallel 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 belowj)-z:bcj*l o5 t(afdf shows five identical resistors connected in a combination s*ajo tdb (z-:cjl5)ff eries 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 o)yp t tyx0kqmu3+ d(,d:khm0i f the bulbs are identical. Which bulb will(0kthpt kiyd+xm d)uqm :y 0,3 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 ammeter, a swkx 8ap7- ja:vx.yno9m4k6x ts itch and three resistors are connected as shown. With the switch open as shown in them:xj.4k ko-p97yax 68tnvx sa 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 batteryhy4 4 d,-a z;ugoz1flcx4ljcg :99d ts,-eg tm, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in t;umd lto4zxelch-j gfs-a :944cg9,ty d1z,g he 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 arx/7v( ak4r lxmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeterr(/xa4xl v7 kr reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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