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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 i un5- 8dzsk6bon the metal resistor connected to the battery. Whio nkz85dsb6-uch one of the following choices best describes the direction of 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 connected in parallel, the_______vz h59a*8pugo __each resistor is the samavzo9p u5h *8ge.

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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 uy-v4k xx t4:cwire of a lightbulb causes the filament to become white hot, while the la-4u4xx:t ykcvrger 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 replaceb /fgpgtz 2;e7d with LEDs. LED is the acronym for which one of the following choib7g/p gt; zf2eces?

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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 resistorv (kr)ajr1s;sgv;v+ vr+ 7uds 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 re 1 ;rav7 vgk+ u()svsrd+rjsv;sistivity 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 madew)p 6wo s7sn.u of the same material. Wire II has twice the diaw7 unp6o .sw)smeter and twice the length 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 material but ha.7ucm jd790kd wumepx .0y ,qps twice the diameter and half t. qmdup.d 7,ey 9c0upwkjx70mhe length of wire 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 wiyl+nbk i0(lrrd50n7e c 3y)has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happensi0l+ brdnciy rw0)7kn3y 5l(e 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 wants to make a brighter light s.dcli* qd9r+s;0 ymgbulb. He decides to modify the filament. How should the filamrs 0qc;sli +y9md.d* gent 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 r/mk m62lx0.)b j jpzkuesistors are made of the same material. The length and radius of each resx )mumj6./bljkk0 pz 2istor 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 connected to a battery inhkn8 h8qyb f54mzj7jft8w p 5) 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 this ary485kp5f 7 hjnjb )mfzt8 wq8hrangement 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 cnp4,g/i vg: zwircuit diagram has internal resistance 10.0 kW and thi ,wp:vn z/gg4e ammeter has 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.ge 2 zp(p ;*(qbmjd6tm The three bulbs 1, 2, and 3 - represente2g6 q (eppt* mmz(jb;dd as resistors 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/n ;zao q0q8dps*kg.p circuit at the right. If the current in all three resistors is equal, which of the fa*qpd. sko gn;z80pq /ollowing 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 electridwu 5* up0v/sw3ct;ot,yt f2e c circuit composed of 5 identical light bulbs and 2 p;w0,t*2eudo ty 35/uv fctwsflashlight 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 follo4yzu;,nd p5 sewing statements is NOT true concerning the simple circuit show4; ynd5u,pe szn where resistors 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 lightbulbs X andY are connected in series to a battery.fcs)3* 9nrtjz 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 the 3 *jnz9f crst)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(zl.yp/tok4 ; 9fid;qb4p nf h pass through the identified resistor in 5 seconds once the circuit wz4t9fn( bpp; ;ldyiqo/.fk h4as 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 thj 1c8bywuos 4oc/fz9y3s6+ y ce same resistance, which would dissipate the greatest power?co+ cjuzs/yyb c83w49s1o 6y f


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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 thk10-raj c2owks 9q a5x+ezb 7qrough the 6.0 Ω resistor is 1.0 A. What is the power supply wo s7q1ckx+b 02a-ez9r j5qakvoltage 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 seriesvynh(e ss(*2+z uqrr: 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 hu2vez sr(*sr+yn:(q 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 resv;xe pp/x 9cbqa2+hurm1i5y+ istors R1, R2 andR3 are connected in parallel to a batteryu9/2ahmq px cbx+ ;y1riev5 +p. Suppose 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( byyt 2zm-qo 6fc0ja7 is rated 1200 watts and 120 volts. What is the maximum value of the current under these c(qjmf0y7 tbay2co z -6onditions?

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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 lib og86zhw 67wcghtbulb designed to operate at 120 vol8w766b cogw zhts?

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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 fl j;g f92tr0vr(*aadcz ows through a 4 ohm resistor that is dissipating 36 watts*ft daj09rc;zv(r 2ag 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 );u9: tzw ejodwz5qmljz0o00/au yq53ge b o8is marked "120 volt, 600 watt.” In normal use, the current in q: wyb5 d 0ozj lwju0 o8;teg0aze53m9ozu /q)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 koy:s,*22 pw qwo:uiw 8fvr.b. +dx-fxp m( trproduced by a circuit contain o8rioq2prmy: +,xu-:f*f s ( x.wwwbv2k.dtp ing only three 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 folxok(cc j-lwz5li+)my3osy 0 7lowing equivalent resistances CANNOT be produceic5 ysjy c( +xowm)-z0l37lk od 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 connecte ba4 r)ewjcsu dkpq6mt1, .zd8*-mf0 ad together in different configurations. If all three resistors are used in a ciderbq-0a* )da6 4ck ,p.zu1 8sjwfmtm rcuit, 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 total power P :gpbrgdqc */0 is dissipated in the circuit. How much total power is dissipated in a * gr:0/g dbcqpcircuit 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 connected icv0fx 2hl4ti4 n parallel, the equivalent resistance of the combination is 5Ω . Whichvi 40x2tflh c4 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 de wxtjc8n5 mx1 6krs3f9yww68osigned such that it has a resistance of 12Ω when operating at 120 vol 3x5yowc8tk86rxwm s169jw fnts. 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 curren(snuk- gepk79/1 ki yat flows through a 4 ohm resistor that is dissipating 36 watts of po/-ea u9g kk(y7n1is kpwer?

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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 ssy2l* tzb 0bktf,k+7it 6o x)of current when connected to 120 volts. If the price of ei +lb,k6bf 2)ktt0xo7tz sy s*lectricity 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 k.txttb p8c: k 6k6t1mxe8 2kwpeep a 100W lightbulb lit continuously for 1 yea2t:6x1x kek.wpb6tm kc8tp t8r 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 through a lightbulb rebapsum s )l) :3s q3qn5vms0p8sults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the q5 qmsampn )3)ssvsb8u03l:p 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(p9 6 n2 lrpz5cnvuh;h0 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maxim c; 2up6l(zhnvr9phn5um 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 batterwc tj ,*kk2p )kp6,phzy is connected to four resistors to form a simple circuit as shown tk2*wk,hc)ppj t ,6pzko 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 to5ex dyu 0o*v-v9b5nv g four resistors to form a simple circuit as shown to the rightvo-e5 yb*g5vnv9 d0 ux.
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 threeh 8 m/ )9rx5 8w/ sjpkf4vqiydvkmi.)x resistors are connected as shown. With the switch open avf my5qvr)d8p) m./xk/ i49kx jhisw8s 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batteryck2 c6w4y4j cp, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter 64cy w2cjcpk 4reads 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 cpn-9w9xk( a flgkp.:0 (//fbx g-7sgsj dckfresistors are connected as shown. With the switch open as shown in the diagram the.s-xgp0nf /lkfask7-j9kdcbwc 9 (x gf p:g( / 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 resist( t0*: uvuxkbun49pnnance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors ha k:nx40t(nnu9vbup*uve 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 a 2zn,qzd+mra; tt;2t of the circuit shown to the right with resistzmza2 rtt,2;dq;na+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 below shows five identical resistors connected in a combinatfunv.m9 4ncnp6/f 6, oe-reewahg2o,ion series and parallel circuit tefn6 f4rgn9hmc.u eo,6 o en, p-/2avwo 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 res5ejb )dq;i,afuf1 /z.ak l1y4;as uykistors connected in a combination s.4u;e/)ba 5d ykfkfa a,;ly jsziu1q1eries 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 iden(p1cvs 7,*o9f bbfhmktical. Which bulb will be the brightest?sc*7vpfk(9,mhbo 1f b


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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 connlh7 g5yziwd60ected as shown. With the sh7d0yg6zw5 l iwitch 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 battery, an ideal ammeter, a switch and three resistors aj-hmq9snuclm0/ht ( buo 7d:ocet( ) 3re connected as shown.3u( o0/ts clhqoj9- utd e7:cmm)( nhb 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 ideal ammeter, a switch and three resistors are conn41iri az mgv.2ected as shown. With a4 .2igi rzmv1the 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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