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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 ky8-wkm 70bfsmetal 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 the resis -mkby8 kwsf07tor?


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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 r( ndnuq1m x5hf rg0(b0esistohnq r0(1ngmux05bd (fr 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 ca/ur ,z a,j-vf,uwlex :2qwp;fuses the filament to become white hot, while the larger wires connecteul;-p, qz ujvfa :,w,rfwx2 /ed 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 hous tjtys hu lkr.e5rfxes3zd(;-,(n+l1 ehold lights are being replaced with LEDs. LED is the acrondtjh(l +srtk 351sezl n;.fu ry ,xe-(ym for which one of the following 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 graphite resi rmu h155hwz vr1ju:ky c-)tl*.u hs.zstor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be)m yzr*5 cusuv:1.hhl5 rkwu-tz.jh 1 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 wirenh.u;z dz9: lj II are made of the same material. Wire II has twice the diameter and twich:uzjz;n 9d.le 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 materiacis+(c+2kt nml but has twice the diameter and half the length of wire X. If wire X hsi2+(kmn+cct as 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 resistor has length L and radius r. 2/ iwtxe/d32z 8ukevm,(h zj(xpn;ods:dn)z This piece of material is then drawn soipu)dx ,2/( s8(wn2:z 3zhvkm;jxn/dt o dzee 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 Edison wants to make a brighter light bulb. He decides:dx0 ea1 hp;; (8gnb d,tfwaff to modify the filament. How should the filament of a lightbulb be modified (affnfd;ehd;, 0 t8 b1p ax:wgin 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 resistors are made ,ogz ;1 o9bbhgaw1uy+of the same material. The length and radibbu 1ay1wg zoh +;g9o,us of 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 rehm8:fque - r:dt 38icasistance R, are connected to a battery in the following way: “Two resisto:qtfu:i3adr8mh-8 c ers 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 accompagv 2n tbu/zbe1e(/h )mnying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 v/z )m(1ueg/hbt 2ne bohm. 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 circb y)t uw)-so bnle,t21uit shown to the right. The three bulbs 1, 2, a bont, -ls)uyew2) b1tnd 3 - represented 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 electrqu( yu) b 4afh7/hf0,*3 ld hdl3xctxnical circuit at the right. If the current in all three renflu)374t x 0d3f c(a*lhhqbh y,d /xusistors 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 represne xbqtt 0.:w+ents a simple electric circuit composed of 5 identical light bulbs aqwte: .tx0 n+bnd 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 statemlizvdjdy w14x0h/k2 *ents is NOT true concerning the simple circuit sh4x k/lw 2jvziyh1d0 *down 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 batte5f n3 0;b-dglq8dlbpr c f*wq)ry. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected l-blf8wb5q) ;gn ddf*cr p03 qin 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 the ident n9 k g; s/gwha1z vb7+hn4;yzsi9amt6ified resistor in 5 seconds once the circub wtihz9/hazm1+k6 v9n7asy g;n ;sg4it 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 s.q6mum )w1o22)c6k,7fbagvjfvtrgt2 r t6zpimple circuit have the same r1 vboj67pf 2 tzrraf vguk)6qt.262c t mg,)wmesistance, 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 through 3z):ihvv z1etdnv m4jag4 f+xdd ) 5;uthe 6.0 Ω resistor is 1.0 A. What is the+ 145xd4;jze )n3dd:tvgmz ) vvfiahu 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 6 ;++jc qmctb1*qhny bR1, 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 dissipates 6.0 W of power. What6;h1bm ytjq *b++cqnc 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 paaabr*ul ky/80rallel to a battery. Suppose R1 hasl rbak/ u0*8ya 2V across 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 j7ocm:d,j bj6 v o90ty1200 watts and 120 volts. What is the maximum value of the current under thes,t0:ymocj od76vjj 9be 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 resist(aq9 jjv: e+lgw1qn9i ance of a 60 watt lightbulb designed to operate at 120 vol1wlvn j+9 aiq9q(gje: ts?

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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 resi2cz.:bg +ilfckgq. ;(qk,fjostor that is dissipating 36 watt., kf 2(jl+fbqc:igq.; gz kocs 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 i.mb whg1icy77 ron used to press clothes is marked "120 volt, 600 watt.” In normal use, the curr1bg iwych.7 m7ent 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 NOT be produced b;p-lxx(y5g*4 s0wcvf+6 z b.et pnilgy a circuit containing6npv zxtix p-(gewll0fyg;c .4+sb 5* 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 g2b dc ()h8i k7l/zmk jil4ic:three 1.0 Ω resistors. Which of the following equivalent resistances CANi dihj4lim)lb28:cgk z(kc / 7NOT 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 conns4 79l u+r4p kz1dunv/2toixd ected together in different configurations. If all three rd+pz/9 du xovts nl74kur4i21 esistors are used in a circuit, how many different values of total 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 batr+ zh6m i k:nozi-ibnde9)w.9 + .(lqsmpf9fitery, a total power P is dissipated in the circuit. How much totaf(dhmzr.n9 6ii :+9w fi iz) -bn.9sl+mkeoqp l 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 resistance R1 md6 wy16fj ecym-(g-pand R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of t -1jf w(ydpmg6-emc6yhe 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 thath ,n)+u+d k r;e8g nvoge8;gqc it has a resistance of 12Ω when operating at 120 volts. What is the miqh egoggc, ;nd+ ukrn)+ve8 8;nimum 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 dissipax5k hg mk(2j(w8hz mj,ting 36 watts gjm5x,jzhmk(28 w(h k 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 of cp4b.(3 r*ja(bgpha p iurrent when connected to 120 volts. If the price of elect( bai 4p.hpjgb ap(r*3ricity 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 wwnils6y/ 1xcy 45r cl5ould it cost to keep a 100W lightbulb lit continuously for 1wcl4il nsy/15y r 5x6c 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 8h*zmxucg9a7d a h1y(A through a lightbulb results in a power of 24.0 W associated with thgu*9dy 1zh7a c8amhx( e 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 kb vq54v8b) szrgj 1a3in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum numb1vvg 8)5r b43sjqzb aker 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 resistobj55m45kf l5i*fw/fi jp : qfzrs to form a simple circuit as shown lw i:qfkz5j5ijf 55 pf4b*/fmto 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 to form ae wi1 r3hs,fn6 05z38l2cvt-z:u fvvn n 3xzzn simple circuit as shown 3vf3zz2r-hc3n5fzuxe sl1wtn n,zi8:v0 n 6vto 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 ammeter, a switch and three resistecp- )d7 m pw86;cojxnors are connected as shown. xo8;pcdp wm)6c-n 7jeWith 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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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 thr.zmuh.b:k pd2 ee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. 2pudzk b.: m.h
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 threee(g lwvdzo5q1l3ct,-;x k9 zq resistors are connected as shown. With the switch zgdz q v51,q-e; l(c9tlxkow3open 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 thzb+x bg+, 3yfhe equivalent resistance? Assume that all wires are ideal,g3b +bfxzy ,+h 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 sdu.jq0;4vs agqqpoq1q: j0t /hown to the right with resit/ pqqg q:1qu 04oa0qs;jdj.v stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con-woo/-lsld,rzt y//n 9;yayd nected in a combination serie/ty,lny/w-yd-l/ 9ooa r d;szs and 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 below shows five identical resistors co/i4;mou 0vabm nnected in a combination series and parallel circuit to a voltage sou4imam; vuo 0b/rce.
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. 2exhw, v b-ti-Which bulb will be the brighw2exhv- t-,ibtest?


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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 idealy3)zaiyn/ g t(2wdw/q ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram tqy ( w/)i/gn3wyzd2a 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, a-tl y:.7 cmufad;nu u.n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the aa t.uuf7.y;n-c: umdlmmeter 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 l g9uwkzz ;5 uv yn1z+c,/mfh4resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 k/h4z ug,5zml+ f; n1 wvzucy9amperes.
When the switch is closed, what would be the current in the circuit?


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