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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 :,mujkd z w7:ymetal resistor connected to the battery. Which one of the following choices best describe j:y7w:kzdum,s 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, ,a72ctttze 0e np80 erthe_________each resistor is tc,8r 2ee70tatzpn e0 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 ligsdedgc 8h(k:u i88x6l htbulb causes the filament to become white hot, while the larger wires con eick(d68g8hu8:xld s nected 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 household lights are being replaced with LEDs. LED is t aci-mcst )3y9jep0d9 he acronym for whic-9i3majcs0epct )9y d h 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 resistor has length L and mv-;nz3 sc1gr,l n /qpcross-sectional area A. It is tg/pl;rmns3c- 1 n,qzvo 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 sam 5kb1;yki fi)-ae. nxpk*n(zte material. Wire II has twice the diameter and twice the lengtbknikf5 ;-p(xe.azt )1 *inykh 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 f pe unn;0y.83 ttp-r ,8 2sabwv,mjksof the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would harn;ms88.pu03pswtbk f,2 , ja te-v ynve 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 a sb4:c/lk2ef o/mlh( has length L and radius r. This piece of material is then drawn so that it is a cylinder with new lengthl4h(c fs/e bmkl:/a2 o 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 toyfbh7 i /0sh5r modify the filament. i yshh7f50b /rHow should the 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 resistors are made of the same material. T *wusd3tl4p0;d 3iqxc he length and radius of each r4ux ;i0c3q dws3ld*t pesistor 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 tcdgid4z. )nbr.n 4y-the following way: “Two resistors are connected in series. This combination -d4t4r.dzc)yn .bi n gof 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 accompanu 6+c .d s;,xomyruy6sying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm udxs+ys y;6r cm,uo.6. 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 sh5 ysh,gwap00u own to the right. The three bulbs 1, 2, and 3 - represented as resistors in sa5p uhg0wy ,0the 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 right. If the current in all gagpy6n:5s 9fn* fkb o3i:swk12t6 lothree resistors is equal, whi*ngpws2 6iof:gs 31l 9 fybnko5a:kt6ch 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 rightacn auq.o14aft 7yen k5 t).3e represents a simple electric circuit composed of 5 identical 73yktn)oaa t4 5e.uce 1fa.nq 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 conc fz-fe0z er( rx*2rhp-erning the simple circuit shown where resistors R1, R2 and R3 are 0 (hz*rr2ef pfxe-r-z 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 i7ee l8; l) kekpzl1bv9s brighter than bulb Y. Assume all circuit elements are ideal. If bul1k b;z78 k9p)le levlebs 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 wi2ofk6f;i-eo y ll pass through the identified resistor in 5 seconds once the cir-6kfoyo2e i ;fcuit 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 have ( vekc /lp9xcx).,eb0tjzy41hx.au u the same resistance, which would dissipate the greatest power? vuj ze yx/. u1xxc,4e b(ch)pk .l09at


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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 :wl(oybgm4k8zb - ;luthe 6.0 Ω resistor is 1.0 A. What mw; yl:bub4 koz l(-g8is 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 in seriesa0hjz/t/p6nfep3cw*e7 l2vsb i r1 2j to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistancelj pthribc/wa7nz32 /se61fevj*02 p 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 parallel to a mo.ava4v *6np5)wepo6 q hu1l battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the c aqw6nl65p.o*vo e4 ump)1 vhaurrent 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 volt bly3meq u;u+ 6j-ok,a;n+fiks. What is the maximum value of the curr+bk, 6 iloqem;;uyj -u3akn f+ent 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 resistanced9f;p -sch c/:elx puh q905sv+uwku1 of a 60 watt lightbulb designed to operate at 120 vo/ peu+wh01dhu:;s5 s9kx9fqu ccv-pl 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 current flows through a 4 ohm resikj6im+r ;6(a6pt vtmg stor that is dissipating 36 watts of porp+ vt6j6ti6 (mg;k amwer?

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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 use np) akxv5)(vyq26rls d to press clothes is marked "120 volt, 600 watt.” In normal use, the (n ay5)vpx6l )2rsvqkcurrent 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 f6j3q yoyh4va)1h(i3owi sd :f2pr2 5jlb.tk could NOT be produced by a circuit containing l 1 vf(yfqw563ptk2:ybr3 di.oi2)4ohjshja 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. Which of the follo5+ --ouf -el-2yb0-m+fbgk liqyqw*si ne ui7wing equivalent resistances CANNOT be produced using allbyuf-i+l5e07u se2w-g-+i kq ql -ymf *n iob- 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 in differep+m-a ir0w0edcw b8t 1rkp-v/nt configurations. If all three resistors are used in a circuit, how many different values of total resistance ctw kb+1-a wd irv-reppmc800/ an 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 bad )viuy)wz+ 2ip)bxp +ttery, 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 the internaw )pd +p+)bxz)iu 2iyvl 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 resistot2eslp f,-j a;9 uy uk)wniu,0rs, having resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistant -ufu, e,;2nyjs0 9k)puialw ces 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 afb:bm2 87ba5tq i,a5d)vtf kthat it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that itqf:a bba)bfv5t2k i85mda7 ,t 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 xys: .qp/ 1. gdf(v6zuudhh.wthat is dissipating 36 wadu.:d(6 /f.hw1g upq vx s.zyhtts 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 current when con ffqc*ej*l0)2cic yq5d- t-o(c;gybq nected to 120 volts. If the price of electricity is f(c 5gc c;)djt-qbi 2eo*cqqy*f0l-y$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 woul)0r jxca wyy29d it cost to keep a 100W lightbulb lit continuously for 1 year at a90y)a2x cwj ry 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 gwci.fw7sn;r93w )a bwe*m)w a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices bewfeswmi3rg ;7w9cn*) a ) wb.wst 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 ownb :2wygzke/1 00vnyghtctu ,/ s a computer rated at 500 watts in a 120 V circuit. If all computers,ybuv k 0 g02gen //1wzy:htct are 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 simppykr rm397cq u:+ up8mle circuit as38pm+ 7um9u:k cprr qy 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 to fo.3kjn wnun7c;og9.kl rm a simple circuit askcn3k;l7j 9 u.wno g.n shown 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 ammeter, a switch and thrk 6a: j94urrpjee resistors are connected as 4ajukr 6:p9rjshown. 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batte3ndd4zerx 2t* -y gk3iry, an ideal ammeter, a switch and three resistors are connected as shown. With3*gzyn dx3- i4 2krtde 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 d4 , 9afmdd(dcjr+r-wand three resistors are connected as shown. With the switch open as shown in the d wc 9r,(d+mj-a4fddd riagram 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 equivalzphgog4 )xz0: ent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R. gp z:)4 gxozh0


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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 cit hxojubv)5 2apppkn1 ) y.q35rcuit shown to the right with resistances p)o)p3.kuxvn21yja t5hq p b5$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i)e+u (pe51bymzs)pz b n a combination series and parallel cy )pm(zbs eu15) p+zbeircuit 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 shvlfmm ;a z:y,c50id3l:a ygk)ows five identical resistors connected in a combination series and parallel circuit to a ivm3:dm;0ll yyf )z ag,5a kc: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 bulbsgu8 ;(ke y83+suvr kth are identical. Which bulb will be sg yu3e+vru8t8( k;khthe 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 switch and tuw7.+ r/ sm5heczxgu*hree resistors are connected as shown. With the switch open as shown in the dias5u gr z+7x*ew.cm/hugram 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 ammeterfr )29k p+tz+z5nda8 +jwe loz, a switch and three resistors are connected as shown. With the switch open as shown in the diagrjl5rzk9 2tedoa np +fzw )++z8am 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 79 * c)ypiv g *jfelkw4e7wg-tammeter, a switch and three resistors are connected as shown. With the switch open as shylfic vke*9wgpg-7j*w4t) e 7 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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