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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 resistor coe, )1axdnbzq71 7gt8euzmz 3nnnected to the battery. Which one of the following choices best describes the direction of electron 7gmz du 3t)1nbqzeen 8, x71azflow 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, the_________each resi 7wkh+hgne, iy5 vxd)(stor is t v5h y)edw( x+7hignk,he 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 filament4.dqzxu1wbg6fwa-xvto / 9q0 wire of a lightbulb causes the filament t0b/ad149tv .o x xz6wfwqug- qo become 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 household lights are being replaced wi93d*eiyr:c s pth LEDs. LED is the acronym for which one of the following choices9i 3ryepdc*: s?

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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 resislb y/z g*czl--tor has length 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 length is 1/2 L. What is the ratio of the new resistivityy c/*-l-b gzzl 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 arez-o rve*-8ul dk3mtf/ made of the same material. Wire II has twice the diameter and twice the length of I. If I has r/8l- k vufeor 3t-*mdzesistance 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 thocvirs*1dsqqpoh;(i2/7(ctoz+ 7 fve same material but has twice the diameter and half the length of wi hocz( ocv fvqqo(i7+;rid*st2 7/p1sre 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. This pifbv3bhy2 mk-k pk68 4iece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thisbkb6mvhp4y8f3 kk -2 i 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 toogo t k ,kcb2/8emeay(. h/sm+ modify the filament. How should the filament of a lightbulb be modified in ord.m8kk ,/ tmay/h g e+seob(2ocer 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 ma,: zl8u ogql5q7u d 2nc2t/cmpde of the same material. The length and radius of u oqgqd2tl,5:7 zu/l28 ncpcm 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, art(5.xt(/0zsw+ .x9b * lcjtbbferjdklp i 91he connected 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. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of 15lz.l phdtc/xs. k9txb*j9fetw(b rb+i0j (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 internaz hib.3 b)of aa)m.oh(k.v fckg(/ .vjl resistance 10.0 kW and the ammeter has internal resist 3gk. ahf(z.bh (o)fkabv).moij/ vc.ance 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 three bulbm tcq q1artf0x*dgw*k s -h2*rlsg85qe4p0r 3s 1, 2, and 3 - represented as resistors h* g2a0 t8sq rqerwx-c5ts*qrlm1d3fpg40 * kin 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 f ytt2vkwf*, ;()hmzxthe right. If the current in all three resistors is equal, which of the following statements must be truez)f2xwtv *ymkh; (t ,f?


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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 a x44-xz wm40nqeah lvq,) tl:et right represents a simple electric circuit composed of 5 identical ligh) tq4 a0qe z- :x,el4hnm4xwlvt 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 concerning twhmo/-qm an5( f9bgo5n p4f q2he simple circuit shown where re (w9ogh- n525q/ aomn4mbf qfpsistors R1, R2 and 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 lightbulbshrhc:+7fpkm )a4:yg(gh i8 k u X andY are connected in series 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 th:ghkgr:mh)a4 hucfy k(+ 87pi e 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 thezi+ q+fxqs; h5il9+hz identified resistor in 5iqzl5sh;++i +z9 qfxh 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 following simple circuit ha3 *qtuitjy1.eve the same resu. et3q*1t yjiistance, 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 th08x/.yy5 u e sgeju5 xg0ur6odrough the 6.0 Ω resistor is 1.0 A. What is the power supply u/e j65x0xrsueyg.u 0gd y58o 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 xj(kq0hv g73wR1, R2, and R3 are connected in series to a battery. Suppose R1 c(gqx h0w3 vk7jarries a current of 2.0 A, R2 has a 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 resistors R1, R2 andR3 are connected*( i viuk45deq in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What kidu qe*4 (5viis 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 a cjb-:e1 9bg,j9g ssidx*1d ppnd 120 volts. What is the maximum value of the curjs j icgg,1e9 p*sbd9:xd-1bp rent 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 operaw jb.txy ( jlc)c+9qd/te at 120 volts?)d+l jtwb qyj9c. x(/c

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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 resito*h+rtehj1etp61sf +a zmm+8,x zw( stor that is dissipating 36 watts of pow++w(fm,pt1s 6tzexe* mj1tho+ r8h azer?

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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 p2b-4.tkgk03: ph*n imnehybwatt.” In normal use, thh b.0tkk3mhgne :bypn- 42*ipe 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 chs b/2p ;jd(utould NOT be produced by a circuit containing only three identicad s/hp(t;ub2j l 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 udi +foi cx+8vyi95 te9ty/s7 Ω resistors. Which of the following equivalent resistances CANi d/+89tvt9+7 yui yfo5sexicNOT 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 together + rewxfu+f:;4jlo +cj*o zg 4jin different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be produced*j44f uj xez j+wg;o+:lc for+?

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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 batte d jm tg fmo7h0( eka.t5rlht;.1zh6h8ry, 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 the battery is zero.k1hlh ;rtz7 .of8tm(h50 d.mgh jat6e

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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 pa*4j1;/vq zw xjvt8kv3rdrjm+rallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about them 8zv43rj*k /rvvt+xj1j; qdw 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 1b,pdtah jf od,xdk8, ,js*t/ a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take bpj*d/,sao,hxf8d 1kj,dt t, 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 curren 71mlt o9blo lh*ojv1/t flows through a 4 ohm resistor that is dissipating 36 watts of pow9t11jmob* l o7vlol/her?

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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+d3lil b jmwur.3c :x-m 5nj7n to 120 volts. If the prm+lw lnr7jmd j5x3ub3i-. :nc ice 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 ho9r- (n a.bw. muea/qyiw much would it cost to keep a 100W lightbulb lit continuously for 1 yearm/9rbua.wn-ai. y( eq at 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 oj8 8z,9+uc 9vqhesr athrough a lightbulb results in a power of 24.0 W associated with the bulb. Which ons u8 rz, 8hj9v9eo+aqce 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 computer rated at 500 wag-do 0gc+b tyhd1hv 7q( nlyjk4: d:t/tts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the manhty7d:q :gtk+cdjl/-y0o vd(bg 41hximum 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 connectepf6p2(y dmn yntatb .5, 88ylhd to four resistors to form a simple circuit as sho y.yt65p, a8pnfdnbmly (8t 2hwn 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 form a sim--uqffzw +w 4;jz iuo)ple circuit as shown to the r+u j-i zq fo;)w4z-wufight.
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 arem dc3mum1hju)5+dt:l6 jufmvt ) az8 - connected as shown. With the switch open as shown in the diagram the ammeter reads 2jtm6)u c mz8jahu fudl3d5 1m) tvm+:-.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 batte 1j0s wxu**bvfry, 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 amperes10s vjb*x*u wf.
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 4 qtw22 kxkqu .es6un-three resistors are connected as shown. With the switch opu-t. wkqx es4kn 22uq6en 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 8 iivoj;*jfi 3the equivalent resistance? Assume that alvi fjji;i 3*8ol 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 k,aakasyix)bs1y,5 f+ w ,c )jwith resista5,+y)j a xka,f aswyc1,isk)bnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorsxdg cdl5z( 9(.we5cjo connected in a combination series and parallel cio5(j9e .l( 5cdwzdcxg rcuit 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 bejsfm9:ial z,i6:;z 5apr.j b hlow shows five identical resistors connected in a combination series and parallel circuit to a volt5 ,m fij. a:l;j zrszh6:9bpiaage 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+b v+,ct8-+))lensvsff z-k emnrg* b, all of the bulbs are identical. Which bulb will be the bright sf+ -n*t f-gelc8), vvrzs)ekn++mbbest?


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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 idi4t yj8h, 5ayeeal ammeter, a switch and three resistors are conn5yhe 8i4jyt a,ected as shown. 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batteryn+zr.(pqxozp6du*o hr;6c w6 , 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 ampereo 6x. +hc*zp 6wrrquodzp(;6ns.
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-gyfpuq-t8 i2(-dq;to3j p fdd2m 9 df and three resistors are connectedd9t-d 8fq2im -j3pgo y (q; d-2dutffp as shown. With the switch 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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