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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 metal resist1qxgh od-hy;n8xez sg;34 h7y or connected to the battery. Which one of the following choices best describes the direction of8 yxh 4gs7 dx-;z1oqy;hgne3h 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 conne h)zn)t8kjp5 fcted in parallel, the_________each resistotjh8nk) p5)f zr 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 causes the fimevoa., e7 /kglament to bk aoe 7vmg/.e,ecome white hot, while the larger wires connected 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 housk/k*d,d mqhv,z i nq16ehold lights are being replaced with LEDs. LED is the acronym for which one of the folq, m6v,/*kk ndi1h qzdlowing 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 cross-sect:g4fs3+c/cvc ynky .tional area A. It is to 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 rat gyt3k+.c:scc /y4vnf io 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 tcqv)8 zhs73ut2u l- wjhe same material. Wire II has twice the diameter and twice the length of I. If I has resistance lt czq8uuvs)j-2w3h7 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 ia(dxvg 1o6rt,k1oy 0 mp. s8amaterial but has twice the diameter and half the length of wire X. If wire X has a re8(kpgso6v,tdaa0my 1 xi1.rosistance 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 res z2g6-cxf e0o*,xlahm istor has length L and radius r. This 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 prooa6h2m -*zxg 0lxf,e ccess?

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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 db x)7a/n;57fdnkbollr,hkul n8z6 3n ecides to modify the filament. How should t 6lb8lx5rl) 7/3hfbnnok;, u a7nznkdhe 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 resis1e1 wk2yrz( kmtors are made of the same material. The length and radiuer 2wmk1(k1z ys 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 cohpbhllj8,roj+( e -vf40oh) r nnected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. l+(ho,8jbf 4jer lh -rohv0p)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 diagram9ekgu33fpema 5v( xb1 has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thxe93 u(ak vgf3b1 mpe5e 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.8482aveku s( : oyc3nodteo a;b p3vu7 The three bulbs 1, 2, and 3 - represented as resistorvo pcet uo 74n:bk(3;asou38ev8a 2dys 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 the right. dy5h8xxl e f98If the current in all three resistors is equal, which of the folx89xldef5y8 hlowing 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 electric circuit comxf9kwm) , pofs.* ulj5posed of 5 identicwx5mu*j ,f9l)kpsf. oal 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 statemenugr7 9j1+ hajnts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equajn+ha1 u r7gj9l 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. Bv7dtmz:4a ndh 2,hr. )n tzzi/ulb 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 the foh2dnzt zd .an h4:iv rt7)/,mzllowing 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 resistywme;qhq4bzx ) rqfl 8ha5x5j 4 9.l/cor in 5 seconds once thfcazq .he5ym 4q9;/ x q5wl)8x4 lrjhbe 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 qt 9sut (,wr7ax ;nqw2f4vek (have the same resistatf4 qnswq vx (t9,ew7rau;(k 2nce, 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 thaz wj:rvw m49n /.vyp6e 6.0 Ω resistor is 1.0 A. What is the power supply volm rzj: pyn6w/ a4w9vv.tage 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 serie gh/v8ez oos+tsf05v1s 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. What is the voltse o vthv+1zfg8/os5 0age 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 mth5 x7n 7d iz-mglu;i5t28afin parallel to a battery. Suppose 7tad8g-75 tif 2i;lmzhnu5xmR1 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 and 120 vcfwu*n n5jw 0+olts. What is the maximum value of the current under these conditions?nw0+ jwnufc*5

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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 designeduf;b(nazo j x7 hgqd 2/mhbjextv:,2+ ,+snl1 to operate at 120 vol+1+(/t vn d7f;lxh,,aebgm2q2nsbh z xu j o:jts?

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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 dissipating 36 wx *(p sk3vniorp2+q0;ou e2 osattsos ks2o2 x+ionep *( q;3pu0rv 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 ta az0;4gzi1bxbft* iem0s-h/zxb 39 ao press clothes is marked "120 volt, 600 watt.” In normal use, the current in it 0b-ix34zt i1bag 0zzs/baaemxf;h*9 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 coul/3uvca x( j4jld NOT be produced by a circuit containing only three identical 6Ωx(43 jalvu cj/ 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 o a3-pr :g4gzx*wvlhg4f the following equivalent resistances CANNOT be produced using all *:pwz 4x3hv4-larg gg 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 tnw;f ; g:8f h*y7 ;v0rbisy9 vfu,fpuin different configurations. If all three resistors are used in a circuit, how many different values of totay,fb:u;vi vhpwnr0y* 89f;tgu;sff7 l 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 singlea1/jcd34 dhud resistor is connected to 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 thed3 ad1cd4/hu j 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 connected in parallvdxfvpi6 0hlfob. k4 -0 k* :wtvi9qj4el, the equivkw f t4vkx09: 6i0dov4p.-ihqb *f jvlalent 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 a resistance of 12Ω whe+mro* s.ia6ton operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from 6i+s.a m*toro$15^{\circ}C$ 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 flo5 b htc8 3vmnpc+plo,ap47+unt1j2p ows through a 4 ohm resistor that is dissipating 36 watts of powe+v7c, p8+ ctp5n jh2ltm3aonp 4o1pb ur?

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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 dr7p,4 o ewnj5g0 :bokv,ah kpu1aws 13 amperes of current when connected to 120 volts. If the price of elecu b,p7a4p 15ohkv0 jo:enwgk,tricity 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 contin7vd3*ul0zgkn w0ds g+uously for 1 year angu *zks d7l003gv+wdt 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 A through a 1xw.tj4w 8qzap778g b zsgy/blightbulb results in a power of 24.0 W associated with the bulb. qs g8t.y j b4x7bww18gzzp7a /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 famil xq1/bv ww flabmg;)m (/wkj,;:chy,fzev+6 ly of six owns a computer rated at 500 watts in a 120 V circuit. If all computers 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 sameti1:vvag(/;fmwbcby hll qx ,+ ewkjw; m/f,)z6 me?

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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 thu2j a214ggfbx q*e 4g 5ecft9o four resistors to form a simple circuit as sh9 jtx5 chef12gq4ag*2u 4gefb own 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 resistor3,c7tpgotw ;ly+k0q e s to form a simple circuit as shown to the7tl+oy ,;3w0etcp qkg 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 resistors are co 83 fxqnpxerf o r(s-jc/6e82snnected as shown. With the switch open as shown in the diagram tr6pof -/xexe 3(82c jrqs 8snfhe 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 ideai)(vosztqyxw (bf9 e: o8, lu.l ammeter, a switch and three resistors are connected as shown. Wib (x)w,qeyfloz: t9 i 8.suov(th 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 and three resistors are congfjs7uqh d0 v;bkm-ub0 86q(,w z n2funected as shown. With the switch opeb-quf ,0hq2bk8s n0uvj m6;w7 uzfg (dn 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 the equivalent resis ,r ecgk:2hp7 vz)iy0xtance? Assume that all wires are ideal, the battery has no internal resistance, an:c0i,xkzv7)gphe r2y d 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 uk.oyic8:j: w right with resistances o:uw: .8cyjki$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicum3iv+oidc vv 5/9;pel( sl f)al resistors connected in a combination i3cu)of 9esl l+/(;vdmv5ivp series 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 resistorm,obnn0 s, nx1 as avaqz*p-ug.ll 87 ,4dl2qns connected in a combination seriesqldox 0bu snv zq*87mna,sl, a g1 .p4-nl2,an 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, all of the bulbs are identic 2n:z ikpv n9i.zs9f2fh n9b+gal. Which bulb will be the 2ih k9 n:bvz+fnf9i n2pz .9sgbrightest?


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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 ths9 +v g k-5tkim1s(jkrf:lhq7ree resistors are connected as shown. With the switch open as shown in the ki7 h-f+s91qr sk ljt(5kvgm: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 ideal ammeter, a switclux8dsh;,: q zh and three resistors are connected as shown. With the switch open ald;8sqz h,:xus 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 resistorsue4..qi +y bsf are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.b efqs. +yui.4
When the switch is closed, what would be the current in the circuit?


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