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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 re)acq9 eng4y*-fk 8k xhsistor connected to the battery. Which one of the following choices best describes the direction of electron flow through ty* hkef4) agcn-q9k8 xhe 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 res mi,gl;gzsi 2l 9fu/m5//.gdmsnoqz9.1yvklistors are connected in parallel, the_________each resistor is / mo2lzmv.g;5 sgklqy9 lu. /fgm,n i1d i9z/sthe 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 thb7( dj(r g2wnse filament to become white hot, 7n sr(2gb(wjdwhile 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 housesj2i9nl /:t89 g u4k6ewaiiu shold lights are being replaced with LEDs. LED is the acronym for which one of the following ciug e9 sl:j6wk4a29n/ iu tsi8hoices?

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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 resis6-p f4im i tus,o)bc8otor 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 ntf)i6-o8u,i4 cb opm sew 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+0+pvft ;poxe II are made of the same material. Wire II has twice the diameter and twice the length of I. If Itvp+p e+; x0fo 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 material but has twice the diamnm ajhjx+j6w9m huhy:nc 552 *d:caw.eter and half the length of wire X. If wire X has a re* j+w2nhamchdhx 5 y:95ju cwanj.6:msistance 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 tc:wm u)u14*0qvd+vbjj +jntpiece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of thwujqt1+vcbjdv* n t):+4 muj0is 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 wantpg2/pa cl +)*h7vln-t 8en 7mpbf yrw8s to make a brighter light bulb. He decides to modify the filamr+p78 p8y ) /h2wev- m ntbpc*gnlaf7lent. How 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 i9v,hncfie:(1 oac 1s jy,j:othe same material. The length and radius of each resis1:v (9n:oe,ajc,sj1y fic iho tor 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 c*n2x;vm;6ag s rgek 6connected 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. Thik66a* 2ex svmr;c;ggns 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 c/wqg ugj82+ehas internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most ne 2/gj+qe8 uwcgarly:


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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 thekl:ugu)c .7 free bulbs 1, 2, and 3 - represented as resistoruucke:).f 7 gls 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 cir:kn/rf52,ej o+zj xfc cuit at the right. If the current in all three resistors is equal, which of the fol 5ex+knf frz c,/j:2ojlowing 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 sim/*qcksqomxui; h5gr 8.(3+ xdvbw,ix ple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bu 8iwi/kgxb+q.o5(,h *dxx rqcs ;mvu3lb (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 truh 9szek9yxx ))e concerning the simple circuit shown where resistors R1, R2 and R3x)h)xzs k9ey 9 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 7x h*khpcyd25in 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 eacc k7phx2d5hy *h 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 resistot t bx0gt5+-yfwhuickgln7;l28ln b :)d5 /yir in 5 seconds once the )tnt 2ugw 0icilb8thllx-5+ fy b5 gnd/7;:ky 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 r )(pin2(9mrsw ;o:k/vc vdo7rme/lx the following simple circuit have the samxw;d) vemi :r2/((mp7csl rokn v/or9e resistance, 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, th.+r 2aibld nt(e current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V and rbi2+.l(t?


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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 ag 4*umy/wn;v9 sexs) gre connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2v ywu*gm4gsxe ;s9n/ ) 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 in parallel to a t zr.,1i4m3du 6gkywmbattery. Sut4w mgz u1.md6y3i,rkppose R1 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 r:m3i *.s+9xh4t /z l fbhuegrvated 1200 watts and 120 volts. What is the maximum value h 3si4z*+9uxlv:f bgt./mrhe 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 6y*xab*n/j k g70zh1/v 1eb hsf0oejv 30 watt lightbulb designed to operate at 120 ga1 jo/z07bj ke1fvy /b3svh**x ne0hvolts?

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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 is0oe g9lqzh9m ky (qe)7 dissipating 36 watts of power?q e y oz9e97km()hq0gl

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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 vo(ttt*s53cl2p i;l ns tlt, 600 watt.” In normal use, the current*i t5(ltc3tp nsls2;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 resistances could NOT be p8 zw)d+u .gqs7 /bfirw-x2 hbf7.jbinrxb8:qroduced by a circuit containing only three identical 6Ω resist xznsbd rj/uqf :+qi78w82-bfhr7ibx) . bg.w ors?

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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 thrr2vubp-;wa5h*h,(h5a sqoi tee 1.0 Ω resistors. Which of the following equivalent resiah,i pt(v ar s2o;-bquhw*55hstances CANNOT 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 inu-rqd 7 l0ifb6 different configurations. If all 6fld7rqu0b i- three 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 to a battery, a tota-ox20s b4cm61;soop to t0kayl power P is dissipated in the circuit. How much total power is dissipated in a circuit if ;s 62 aoo1 okyx-s0tp0oct4mbn 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 connected )vsv;l4x+j laqv89 ywin parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements a vjv49wqv;+y8als) l xbout 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 itic9x-y009z.xvzra:fn x (h t x has a resistance of 12Ω when operating at 120 volts. W.x0y:ft(nv c 90a xh9xrzi xz-hat 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 f2 ef;bevg11 tvow;z/ilows through a 4 ohm resistor that is dissipating 36 watts of power?1; 1;vzwt/ oivefb2e g

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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 v(4tbqj;ma ge)szmv0 5 olts. If theze jq v(bs450)gamm;t 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 lightb an80un.*km rtulb lit continuou8a*.tmu r 0nnksly for 1 year 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 currenoqc6 -p.e1s xst 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 represents the resistance of the lightbule-pqsx.s 1 oc6b?

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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 comv*c5 sb hzb2w8n-wp)yputer rated at 500 watts in a 120 V circuit. If all compute2wb*8-whpcv ns z )yb5rs 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 q263i-zam hxw is connected to four resistors to form a simple circuit as shoqh26mw ax-i3z wn 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 connect pej7o-hjnhkk+ 8hrr2 8xk 92aed to four resistors to form a simple circuit as shown to the rir are n2p-kh27h8jx 9+jkh8koght.
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, r/ r9,v, h 0mnhjvjummumn2-, a switch and three resistors are connected as shown. With the switch open as shown in the vu,rh,m,mn-h /m 9vrjm0nj2udiagram 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 ammeter, a switch and three rese5q nbppz/cjtt9u1m-/o) ) yuistors are connected as shown. With the switch open as shown in the diagram the amm q/1-n tcejy)5pu)tu b9/zo mpeter 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 swiva6k. qvek i;xu;14 xv ro.kj*bo.o n4tch and three resistors are connected as shown. With the switch open as shown in the diagram ku4bo4xvko .1;ire kaxvv q;on. 6j*.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 8b)5xn gsn e-nthe equivalent resistance? Assume that all wireng-5bxnn 8) ses 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 with 89jju9b l93h zp j(8dek/ mvkz resistancjjvd pmlzezk 98b(j 9u83hk9 /es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belodju ,uxjb :mo2)cp97ew shows five identical resistors connected in a combination series and parallel circuit to a volemujx )pj ,db29:uoc 7tage 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 s jm/wi9(4aqfr/favb v 6r4gp6 hows five identical resistors connected in a combination series and paraqrfg r/a4fabwi6 6p4m (/v j9vllel 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 ofnp79mowih/7tso 0wd:k(x 0joguvc,g c.y5w9 the bulbs are identical. Which bulb willmt s,wx ocg:wo95knd h9yu0gjcop7 . vi0(/w 7 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 41h-:i6h qedfc +waojammeter, a switch and three resistors are connected as shown. With the switch open as shif+h4jw adqhc 1-6eo :own 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 battek krvhj14-x f;ry, an ideal ammeter, a switch and three resistors are connect;1 kkjhxv4rf- ed as shown. With 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 ic1. o4sygk0 (e,edswgu )cf o+x5 ap6ndeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampeg0(.e cpk,cns+ o ) 4fy6agw o5su1dexres.
When the switch is closed, what would be the current in the circuit?


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