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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 ec doyjz2odk 7:x c)r+dt e(r4) h2(in9o.swmexists 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 j( 4 he92ky nodx)mr)+:o7ci o (.wcr de2tsdzthe 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, tjf-/z exe+* ,,gez x4ms 4ekouhe_________each resistor is the+f/ zk4meeue 4 xzs*je g-,x,o 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 causes the filavd :*8h79jpa)d3dm4tlkwd e jment to become white hot, while the larger wires connected to the liv3)da l hjk7* mpe894: ddjwtdghtbulb 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 pue-r dr7 ./jsu oh.8aare being replaced with LEDs. LED is the acronym for.ujp su e8r/ado- .7hr 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 rwhi q9f ,er*ibi7ga1cj 7ek/ 4esistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be ki ieewc1 9 7qbh4/fr,agji*7 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 materiq 0 lssn-m6k -e9 )p3x)jhsnlcal. Wire II has twice the diameter and twice the length of I. If I has resistance R, x )3lqh9 ssle)s--m60knj ncp 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 maw a6-cse 7*6x x6bzq (7oakcmvtg od87terial but has twice the diameter and half the length of wire X. If wire X has a resistcw76a7z6oaomecqst6b7g d( 8-v* xx k ance 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. Thi m-/ g18vr3tgdsma ;lds piece of material is then drawn so that it1dggva3r/msmt 8ld;- 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 wabale5wq xef*o,d8 4/ fb2j.rants to make a brighter light bulb. He decides to modify the filament. Har wbd2a.bl/efx,je 8f 45qo* ow 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 mater9k6bzq 2vz;f0lc7x +jnfclh.ial. The length and radiz9c0lkvf zjl+cbh;. 67x q2nfus 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 oq6a :;1a b*zsndbg7z af resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in p :b;*sbzq6g n7azda a1arallel 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 accompandmo;3a)s aang62h8dp ying circuit diagram has internal resistance 10.0 kW and the ammeter ha;n)aod3 pdamags 82h6s 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 shown to the right. The tbg5) kst8 xky3hree bulbs 1, 2, and 3 - represented as resistorbk)38 x5gs ykts 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 khl75f6ty +9 impnp x)n d0at.mr3vy/electrical circuit at the right. If the current in all three resistors is equal, which mn vph936/d0+7aiprt xl)nf 5ty. k ymof 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 represents a simple electrg439vitaf),g,a tcub ic circuit composed of 5 identical light bulbs and 2 flas3f,givb,a uc)g 9 att4hlight 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 statem h;nw+j* tuum/ mb0iln h4oq*q6u*rfpa5q7.r ents is NOT true concerning the simple circuit shown where resistors R1, R2 andu ul.q 0q4a*;t*iuhjmwmn* +n5r bhpor /f6q7 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 s (a2u1ra )r) t9 j1pqqvtti)ateries to a battery. Bulb X is brighter 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 tpraaj)2ta9q1(1 t )ui)t vqrthe 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)df; vuz9 j-lx in 5 seconds once the circuit was 9uxfl;djz-v) 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 g0fpd2m4 y;gc7r 8zir circuit have the same resistance, which would dissipate the greate yi 0mgprcf8274dr g;zst 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 the m 80b-tgm wuuye (8vtfqunw16og )-z)6.0 Ω resistor is 1.0 A. What is the power supp8m0bez6y-))vgn - w (qw tog uu8fut1mly 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 baqt/u v;ss8 8wesn +io4ttery. Suppose R1 carries a current of 2.0 A, R2 has a resistance ofs ;soew4t8 iuq+n8sv/ 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 arh8 wo87ol yax./jtb7ie connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipalo88x/ y a.7it7jw obhtes 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 watt:f y7p 4fucow/ck .cv:s and 120 volts. What is the maximum v4cu/o.ckf :pf :y7cwvalue 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 designed to operock3z : )mll ke1lin6+ate at 120 volts?c:l e+lkik 1l)6m3ozn

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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 resify +xds6.6 mo1we 5dwkstor that is dissipating 36 watts of powe1.f6d5o+ e6msdxywwk r?

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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+qq8fi 20ct fg volt, 600 watt.” In normal uf 0tci8+qqg f2se, the current 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 pkdr(o(15 s0to 8i jmxd6qccx7oh5f0 2 lkcyd-roduced by a circuit containing only threok26oi0c mkd 7fs8 j( dtocl0dhx(r q- 15xyc5e 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 me0(c m)q+e.7duf ib hfollowing equivalent resistances CANNOT be +(eicmd7fm qu ).0ehbproduced 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 ofvoa5o15.i k7 swok p4yj9c, 9pj0igd c different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of tow04.k 7, o1k cogvj995y5joscpida iptal 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 battery, a total power P i8hlh hoc(/z o(mqux1 7-ojbk2s dissipated in the circuit. How much - bq hko(hzu8(1/oxh27com l jtotal 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 and R2, are connecyt.z q54xq ay(ted in parallel, the equ x5tqq.a4yz y(ivalent resistance of the combination is 5Ω . Which of the 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 that it has aj7dkuoy, +i:u resistance of 12Ω when operating at u :+dk7iu,jyo120 volts. What is the minimum 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 dissipatingdsb3a9d peo- * 36 watts of pow bda93- dp*seoer?

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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 whivl w( oni17z-0tm rk(en connected to 120 volts. If thnv(lokt(w1 rim7 - z0ie 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 lit contin qtckf; nvr83oo rl42-2+hwpbuously for 1 year at a rbp2ot;23 8- rlko4cv qf+wrhn ate 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 lightbulb results in a power of 2x v9n6ibc nk1*4.0 W associated with the bulb. Which one of the followinikbvn*c1n9x6 g 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 50:dihnzh)+-fgnh9ay ezc) ( z(0 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the mae ) + h-dcz finayzzh)(:nh(9gximum 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 circuima ra9divr4r+i ql ,2f8 p3i m)i/k8isgz 47rmt aiia 4irp7 r+ g),2 ld 3imsqmzk8r4mia 8/vfr9s 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 formj2jq:i ikf9.d ipjab bs4l*;:b4th1on*n. f x a simple circuit as s 9qbot4;pj1k4 bd* .f.x b:iainin:ls hj2*fjhown 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 thren cbd6qw7lt ct,(-7r.dly5c ce resistors are connected as shown. With the switch open as shown in the d-bycr5ccqw 77 (dn6llt d. t,ciagram 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 battetpl;.sh97g/sj 8ky-0 pqj vzbry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes qb; hjgy-t/zp.sl87 v9p ksj0.
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(5eqva0g (ps d three resistors are connected as shown. With the switch open as shown in the diagram the amdvg(e(q sp 05ameter 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 equivalent rescdn 48pi76te8(x.nmxu e5 w dpistance? Assume that all wires are ideal, the battix(e7mwd e468du 5np. txcp8nery 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 wnlb4. rbo6 t;kith resisttl6.b;o b 4nkrances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resis .m6jaqvyuk)b.5tun0p ko/o0z*i u)b tors connected in a combination series and parallel cyink*buoz.6uvj ) .pkq00t oaum) 5b/ ircuit 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 la * u*1hpt(hbfive identical resistors connected in a combination series and parallel circuit h1( *b*al uhtpto 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 dc bu:mj .t v3:0pf:cuniagram, all of the bulbs are identical. Which bulb wil mn:0 upvut:b.cc :3fjl 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 switch and three resistors are conf7 n;pzt+mkks y/v+u.q- , nmxnected as shown. With the switch opktkvqfnm7 py+nm,.- z/xs;u+ en 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 batterkpj(s0ziz .3 sy, an ideal ammeter, a switch and three resistors are connected as shown. With(i sjz.sk3p z0 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an:l4/qd8u9f qzd 55vfu) dboy l ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 alvu4 ol)/5:z8b 59qud fqfyd dmperes.
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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