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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 show:usoa8z vt 5*hi bh63nn, an electric 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 buvhz: ao3 ih*n685 tsfield 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 four3g ,q6e ,qfemy resistors are connected in parallel, the_________each resistor is the samefey6qmg3q, ,e.

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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 ofs9epd4pfu7y+hs6) p / m ex:sf a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much s7+)s mpx9 hd : sfyf/epup6e4cooler. 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 LE00(h)vhf-g qwikc ee 9Ds. LED is the acronym for which o9)vqef(w00ie-gh hc kne 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 lengt2x .tz n2cqqyckd/ m)z-tde2*h L 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 length2) zcc/ydmnqq2*ttd-x 2 e .kz 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 cntcd;rd*55q(tj q .q of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance5t(d*jqcnc5 q ;d.qtr 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 has twice a)dzhqrd zj, q+j38.u the diameter and half t 3jq,8juzhq)zd .r a+dhe length of wire X. 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 resistor has length L and radius r. T(zm8 *ycca* dg9 xlr8ahis 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 pr8zc9cdg( xryma l**8aocess?

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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 decidp:e/ :dpjg mc+es to modify the filament. How should the filament of a lightbulb bp:j+d/ mpcg:e e 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. The b219mzj b +izdpyg (qeeevj(43nep67 length and ra76 (p jbye3+dge2zq(9j14 i mpbevezndius 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 resistance R, are ,nt0 zp8hkmo5 bqussjjo6/ f/c9d9: nconnected to a battery in the following way: “Two resistors are connected in series. This combination of two ro /jtu9/pn8nh s9 k:b jfqo mz5c60,sdesistors 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 diagram has indvs+8d +mhx 8fternal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is m+xhds 8+dvmf 8ost 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 show v)*wn-uot/7me6aguomtw+k - ghw5j 4n to the right. The three bulbs 1, 2, and 3 - rep7 -jgwn 5)huowwt-a 6vo +tgmku/* me4resented 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 :j r*4y(hpjwwthe right. If the current in all three resistors is equal, which of the following statejw:rywp*jh( 4ments 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 electric circuitek0x 34t4f4v:xoelrx3a p iw / composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (o rpx0k a o4wxe/tif433 xel:4vr 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 the si p.b5)p 7e7c0 w/h 5zypdkckwzmple circuit shown where resistors R1, R2 and R3 are y.5zp5b/cw k 7ehzckpd 7wp )0have 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 batte tq+f3ri5jf7bt28 - xd/w fcmnm4:ikwdb-pj6ry. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bul6ct+ m2kibjf 87dw d mqt 5jbr3ff4-p-:niwx/bs 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 wie niik d.6knny1c49 2p brg0:ull pass through the identified resistor in 5 n6.nd1ripb2k9 04ceinu:y k g seconds 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 folit/ f /bti.9.y.nvvcqk*p4zalowing simple circuit have the same resiz4iy9tpc/nb v kti fv.q../a*stance, 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 diagramfd te+gyp62 )ntk; ff7, the current through the 6.0 Ω resistor is 1.0 A. What isty6;7 )f2tnf +kpgdef 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 resistor .fmx1r(yg6b *e9kozrs R1, 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 R g6eoz9*rr(m.1kx ybf3 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 ii-o3 ks( 9ydw(ag:sj jn parallel to a battery. Suppose R1 has 2V across itjad i : ywjs39sg(k(o-, 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 120 volts. What is v69h;5 *cmme+ pbmio pthe maximum value of the current under these condi; pb +om*pc5m6vhm9ie tions?

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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 l2t)xe- d u:. b6aonsvqb(v7r5cwl;l watt lightbulb designed to operate at 120 volt v2ul:boq5sn.alb-cerd 7w)x ( l6tv;s?

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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 di z5c 80lxyfv66vfdgr;c w/6c fssipating 36 watts of pow r 0; w/5ld6ffcz8xcv6vycgf 6er?

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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 wae)td:a kd, rr4wk6 ki.tt.” In normal use, the currenrkd)id6, tw.kk r4a e: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 resistse . n34y abndm2pkvb,++ :tzhances could NOT be produced by a circuit containing only three identical 6atvnp2+y,me 4:d+b.zkhn bs3 Ω 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 following equ9z3hxi; ll 3w eedj,2 +bcsj1givalent resistances CANNOT be produced using all thih sc,jel9z3b3 dgje1lw2;+ xree 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 differ (jrp 2;n0:fekpf udn*ent configurations. If all three resistors are useduprjk d(enf* fp n;2:0 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 e(4vqjfuspj q, bk4s1.d+eg 8iibt32to a battery, 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 internal resistance of the3kjsuiq,.q4jiv (gd bb8+ es1 f2t4pe 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 connectedbai.msn;bf4 ( 2d9pef in parallel, the equivalent resistance of the combination is 5Ω . Which of the following s ifbm2e(9pn ;f.asb4dtatements 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 thjw;-7 bu *j3 hfare6svmrezh/y8c x*7at it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to wju7;y6 jrrv wf-mhs3/*b hzx*8e ea 7carm 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 auu-u0*d*sb82+ ;6jhnvplnbdrj l3zresistor that is dissipating 36 wattbb 3v+;n dz uu a-snp02*ujllrh68*djs 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 ampqm:5 w;kx px, ptzc7e/eres of current when connected to 120 volt;/wtpzx k,xe7pcq 5:ms. If the price 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 lightbulb licpx2 j:hvq* 7tu.ce*- ux8bymt continuously for 1 year at a ra *t*7ybcc-8 epmux:.uj vx2q hte 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 currentkunp7:+vum n / of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best r/:unvpmkn+u 7 epresents 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 r0m; x6o 3um praazh0.uated at 500 watts in a 120 V circuit. If all compux.pm z60horm 0;a a3uuters 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 simple ciu wpw84mcw+uipq3 )-urcuit as shown to the right. p+wpw)iu43cq u8wmu -
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 ish6z xou35g3il connected to four resistors to form a simple circuit as shown to the righz3ug6 l3i 5oxht.
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 tos l:ljq4vp13hree resistors are connected as shown. With the switch open as s4o13vlqjpls : hown 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+yz38 l:gqx-iqjht7 y6bh4ci ammeter, a switch and three resistors are connected as shown. With :gqciybi 8j6+yz7ltxh4qh3- 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 1w q53o 3nlxbuideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 5n3q1x uw3olbamperes.
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 equivalentox*1 pjp,rvf4 resistance? Assume that4jpor ,*px vf1 all wires are ideal, 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 shown to the right o( sjqz6ouszfd -t1zx d7 *hc:53bc(f with resist d:qdfcxhs 75t6fjzz1(3 u (szc*obo-ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 com fg/1.;wthf j53sgarlbination series and parallel circuit to a voltage source..haf5/sg r3jgtl1 ;wf
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 iden8*v m9ofw3ir dtical resistors connected in a combination series and parallel circuit 8i fomrv93w*dto 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 bul clk0.l)b: tsbbs are identical. Which bulb will be the sblb. :lkt )c0brightest?


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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 swib m3ysrxf0y887k ld86:xepq jtch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 f87yl 8b0 :mxxesdj 6r qyk8p3amperes.
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 resistors are b;1z f0nme;6 h gjs:i;io7 qb8(cfd ia4i9jvbconnected as shown. With the switch opio0cqjff8jm1 i;9v(bnbg d b7;4az:is 6ih; een 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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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 resistors avvam fi0j8c (gi,xf y s12r:o7re connected as shown. With the switchc8(ojxf iy1i:a v2rs f7vgm,0 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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