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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, a e xi(ufyq9m*xv:u bygw881*zn 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 diue g*yvyubxm1 8f8q :x(z*w9irection 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 ch+fpkuq8 2 5o:x7;h v)b blbneonnected in parallel, the_________each resistor is the 8kb2;ul vbhf+7qn) ho:b 5xepsame.

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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 9 d.z0 5zlbsd4x2hsy9 la,)jsnb uis 8causes the filament to become white hot, while the larger wires connected to the lixl ,sun4bihda s).9 zsz 2bysd8j950lghtbulb 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 rep t39q 5rwv:ua mi vcomb)l6.lq21t.ez laced with LEDs. LED is the acronym for which one of the following choices?a . b.o5ttm:)e6vw i2u z9 qlq31vcmrl

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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 lw39,u yvb1bglmc,e:f sat3) vo (yrw. ength L and cross-sectional area A. It is to be placed into a circuit, but it r 1cmtfwvs .,wo33v9lebb ,g y:auy() 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 the746c okr*uacbmt*smw/;j on 1 same material. Wire II has twice the diameter and twice the lbkc7a 6m;r *o*jt/ 41uwmn csoength 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 mjd ;+ m g vejz7d+wm4;)cq)q3u+hmonpaterial but has twice the diameter and half the length of wire X. If wire X has a resistance ofmcom 4z+ujqm+3pjn g;7q)) +de v dhw; 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 re5w7mg(9z u n ads1;2iaxxou3. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materialg u7m9wasixau( ex z32n;d51 o 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 (zfgbvl;er 0v1;s j*r light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to mak;fs*rg0lj zv erb (1;ve 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 length ano ks+.n:c,wzrny4x 0q d radius of each qzsw:o0y, cnx.4 n k+rresistor 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 connec u0gni-x(pe; oted to a battery in the following way: “Two resistors are connected in ( x;unipo-0geseries. 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 accompanying circuit diagram has internal resist5u1e w9nj-gvbfou29 mi y n)g0ance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readn o-yi9ugvg)ue n10mbj 95fw 2ing 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 shan6l skbo *x q:.s6:hyown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagrxyq . ahb:slo:* s6n6kam
- 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 tf72/eb4v;x3ehm ,rqutgi me 3he right. If the current in all three resistors is equal, which of the following statements;reu2q ,fb x eh34vmimte3g7 / 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 represen. rmgbx85+;jtb2svx z ts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Wh + x.xt 5jrbvms2zb8;gich 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 followjm6l5y*h 7m- krk ulq1ing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal res1m hjq*mu 7y 6rkl5k-listances?


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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 is6lyt y:i8op 3n series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in pt8 p 3:o6lysyiarallel 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 identified resistor b7 (hw5gud;yek)ppp1h xs9-l in 5 s1( 5l)xg-peb;h7kp s uw9y hpdeconds 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 following simple circuit have v83f-oh.ftec+yu 8;q - )y9dgojo yhi the same resistance, which would dissipate the greatest poweroyhtoj9.fi8 qcv-fd-e u3 +)y;h8o y g?


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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 d bv1yxu-t6e*)qo u: d6.0 Ω resistor is 1q)do1 *ey6db-:utxuv.0 A. What is 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 mwc56a7vpnc k)d vi(0y0k id *R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has am 0yn ikadcvv*56 (k7w 0ip)dc resistance 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 resiswcwn j1)qhh6tx 4g 9s r3mv(,ltors R1, R2 andR3 are connected in parallel to a battery. Suppose Rsl463(whmvw 9c j1,hxgq) tnr1 has 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 1200 watts a0n 3j:)2 z ieu(uvltzokwz.4h nd 120 volts. What is the maximum value of the current under thest v(w0h 3jk uoz.: 4zi)nlu2eze 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 designed to opera3 9*gp6rc8fwslex 6 zyte at 120 voltsl 6fzxs38g9erpwcy *6?

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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 resis+o0uhntp y*v+ f58oeetor that is dissipating 36 watv o5o0+*eep uht ny+8fts 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 press clothes is marked "1202 ep,qs+ hkkw1 volt, 600 watt.” In normal use, the current h+kskpw1q 2, ein 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 produu vxw6nw56u9ag. c+xgced by a circuit containing only threu w6g.59wx a+ucgnvx6e 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 )mg/vuump; 7sx, izq+ of the following equivalent resistances qz7/vm)u ; mu,x+ gipsCANNOT 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 connected togethu 2xn-m+wii 2s+60jefwvdq+ver in different configurations. If all thr+ +fd vewji2m-0usv niq2x 6w+ee resistors 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 tonvdurau 7-w5p 4bmy5 4h(l3s r a battery, a total power P is dissipated in the circuit. How much total powerhuwrd(54u3m5 s b7lapy4 nv-r 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 r8;+vow559 qv pfvyjgnesistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the v yv55; f9pgn+vw oqj8following 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 designe0; cez5) yinkpu4zfi.d such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fpf 5i4y;uzcz nie .0)krom $15^{\circ}C$ 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 curre 6d7olhmc, 7gmnt flows through a 4 ohm resistor that is dissipating 36 watts of7,6mh g cm7lod 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 connected to 120 d + pvr,c1iou+volts. If the price of electricity is v+i udco,p+r1 $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 lit contietdq7) kn a9ss4bd (o7nuously for 1 year at a rat7qesa 7 bnkdo)(4t9ds e 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 currenwrod/4 1.mm xyt of 4.00 A through a lightbulb results in a power of 24.0 W associated witd1wmoy.r/x4 mh 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 of six owns a compute9abhb)4,h/+ gdr0 hzqu:tf ncr rated at 500 watts in a 120 V circuit. If all computers are plugged into a bhg dzf,)9n4ub rq/0+cth:hasingle 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 ioygvg71l1gy 6bdrfx9 : n/8ka s connected to four resistors to form a simple circuit as shown to to81g7k:1yrdfagx9gv /nlby6 he 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 a sq930 juivl)q pimple circuit as shown to th0ui 3vp)q9jlqe 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 resrq -whl1i (y:wistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2l(hy q :i-wr1w.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 three resistors are ;9 byopy*)yw0c cny,rnse4x* connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampywr4*p)enn;9xcy y , o0y cb*seres.
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 t/n1gq 5h a jg:+ggbcv2hree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperej:b/qg nv hga1gg+c25s.
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)0 q2oexh z;vd the right, what is the equivalent resistance? Assume ze 0xo h)v2qd;that 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 resistahmpu2k, x6hc)*l nc6 bnce of the circuit shown to the right with resis,m6u*bcnc ) plhxh26k tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belowd+ hivcnlwb+: , /qxi3 shows five identical resistors connected in a combination series and parallel circuit i,whv3b /x:clidn+q +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 connected in aykebsi4vsvm1 x;3* x.mov+j; combination x+x43.*eyo;mvk mjb;v is1 sv series 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, ct 1dztj 3nilko 2n09)*zvdayc/ 2ku( all of the bulbs are identical. Which bulb will be the brig3ltkai 0zot z1/ncv kd(dc2)j9*y 2nu htest?


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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 t mdist9) :+qhwhree resistors are connected as shown. With the switch o hm9: wtqs+)dipen 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 is8:knqp op .pw2/gs r2deal ammeter, a switch and three resistors are connected as shown. With the swp8rn/kq :g2wspos. p2itch 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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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 thre21 orjjej i s:c/j+9zbe resistors are connected as shown. With the switch92sjrb jj/ecz +o1j :i 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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    总分:50分 及格:30分 时间:不限时
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