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习题练习:.Resistor.

 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 rekg06(-qfh dgz sistor connected to the battery. Which one of the following choices be(d-6zf ggqkh0st 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, thsf:sfy4t- ahst o913 wfj4 /bie_________each resistor is the samejstf4 fsiow4f:a3s9 t b/hy-1 .

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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 cai-rtlt ba,v(v2 v4,,y mlq 9icuses the filament to become white hot, while the larger wires connected b ca,vql92 ,( yrtm 4-i,livtvto 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 with LEDs. LED is the 5 +,f, 6s aki-be. sv0 b6kguxkeinqb-acronym for whichb kks6kub,veaf g0-n ,.+eix q6s-b i5 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 resistor has lenyij3ybg 1 5(fi bu4p 7johh9v5gth L and cross-sectional area A. It is to be placed into(bojh5pfyyi7i v9 b1 j3hug45 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 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 madwbsmsu 5) m.2klo 8(.wdz;szke of the same material. Wire II has twice the diamete (2.ss.wz m5odb kuwmsk;8)lz r 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 9 sgf5eyhpe-.kbu0tlg u9 /,tof the same material but has twice the diameter and half the length of wgsu,ekl pty/b.uf5 te909 g-hire 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 piece of 6/*8xoa wa*ndwg; o+*zcj9 ko h vk(fzmaterial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this * cvoz6wgohzwxjnkda* *k;(+f/89o aprocess?

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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 brightz.qkv-bj a 89,kskx7,8 befreer light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given qrfv 8 jb.kebezk-9, 8xak ,s7voltage?


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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 oz1y6r 5(xterrh iv0m ci7op +-f the same material. The length and rrhc6e -i m7ty pizr(+x05ro 1vadius 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 cbg3zop09 g /bponnected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected pbogp0 /3z bg9in 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 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 circui; mysz9-z0ra d bfc-0h egi-e,t diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rea 90,e arb echgz;-msdf0yi --zding 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 circuitn 4* qqfll5matc.or036uprf9 shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagraa54f 6c 39. rnur*qqfl0lpotmm
- 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 simuqoqa u t*/:8wple electrical circuit at the right. If the current in all three resistors is equal, which of the following stateuq:8wtq*/ auo ments 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 circ.68ol xtjr i0da h+e fhmz7/,huit composed of 5 identhat8 + rieodj6 ,mzx/lh.0f7h ical 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 statements is NOT trusl5:do5h-yr k e concerning the simple circuit shown where resistors R1, R2 and R3 are have eqd kl-hy5:5rosual 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 seri g4a( ukv6tmk0udlpg59lh ,0 ees 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 the following 064dulgu, mte(kag5k9l hp v0 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/3p xvwe3bh+ ,pm/zacu.la 352yg iow in 5 seconds once the circuit wawi, zlx3cm +bpa /w3oh3.v/yae5pug 2s 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 simplyl4u/e,ku3 upfug c,) e circuit have the same resistance, uyck3e,u,gpfu4u ) l/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 throughub2u*fpmch yvw0ezte -t810 .ir /gf( the 6.0 Ω resistor is 1.0 A. What wh(0tf0 rzyf *i ptvu /b.eg1-2umec8is the power supply 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 Rnip/qh :b8z o01, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω:0 p8n hi/boqz, 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 resisa ph6qet/tr 65km 1f3xtors R1, R2 andR3 are connected in parallel to a batte hm 5r/1f6xq3tpt e6akry. 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 is rated 1200 watts andulm6fwp6k r8yf,9 q35jwnjf 5 120 volts. What is the maximum value of the current under thesq55f 6lunfpj 6yfk 8,jr9w3 wme 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 lzkm.v .0)46lco*qik:xy nb tl ightbulb designed to operate at 120 volm)yliko.xv .:l0 *tkcq4bzn6 ts?

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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 resit t5;oo74k yoroxo:j 0aan,h2 stor that is dissipating 36 watts of power?o0 ,toon kooh5ra7j;a 2xt4y :

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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, 60 d90qj qq0zsjmf0*fs*0 watt.” In normal use, the current isf9* d*jsqqj fm 0q00zn 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 akcfffn5:,ai 5m f88x produced by a circuit containing only three identiknff:,if8a8f m ca5x5cal 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 following e; +wea j27nqmyquivalent resistances C2+ nqm7aw;je yANNOT 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 in diffeyn toty(cxe- xw/c,2c l*k1-yrent configurations. If all three resistors are use w ,ncx2*kt xye-c1ytcl/-(yod 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 e4fmm 7:ipo0 lto 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:7m4f0 lmi ope? 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 resi3wqsu9 br1 bh0stance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistan1ru wbh9 03qsbces 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 dect4 ssn*m8g+u( 1bcx vsigned such that it has a resistance of 12Ω when operating at 120 volnbs4 1xcm(c *usvg8+ tts. 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 t6upmr 4i8,ysshrough a 4 ohm resistor that is dissipating 36 watts or8y64s p, uismf power?

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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 draga1 8 mc1qli6rws 13 amperes of current when connected to 120 volts. If the p1l r 8acq61gimrice 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 t9jn*a0 7 pwaw d.8d-hvnu/s pbo keep a 100W lightbulb lit continuously for 1 year at a rate of0p9h bd p aandw7j. wn-*/8suv $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*xb n7y*0bju y 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices bxu0b7* *nbjyyest 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 watts g7/ h+bb2kazkin a 120 V circuit. If all computers are plugged into a single circuit protected bz7kghab2 +/k 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 is connected to four resistors to form a simple circuitir pz+dtv/-9o as v rpot9z i+d/-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+ hge31o(gus:f h s.6/rnxewn connected to four resistors to form a simple circuit a+urh w1s(g 3e.nh gf:/6 osxens shown 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, j/. 86jix fbkpa switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme6i8/.bkjfx pj ter 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 resistors ar9qcm ;b*k(n yae connb* y; 9q(canmkected 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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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 switcf0f0 dv-wkq,5jt *kv fh and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter tv0*-d ,f05ffqkjv wk 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,prk3 3l*hpvl 0 what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R.3 vpr03k*hpl l


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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 circg7s ux-jc7b2wgo /fu(h8xcr) uit shown to the right with resistcj( hg8x u2-bxr/oc7gsf7)wuances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fivhj *wcd3oymg4,tz 3g(te d g;5e identical resistors connected in a combination series and para mg( *gz ;docwtgte3 ,ydj34h5llel 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 resistor2qnsn(v7*6 hrgor*uy5qy)z ns connected in a combination series and parallel c qnrhy)(nyos *r* 7v52qngu z6ircuit 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 identical. Which bu13g gzv.w(clp, in )sb bm.;xflb will be the brigh xbmz(lp .;f,13.gnbs )cg vwitest?


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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 p;36d -b+lwk -pododv connected as shown. With the switch open as sh+oodvkl6 pbd d-3-p w;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 battery, an ideal ammeter, a switch agyl)x*x 6+/ ln( rhg w5rcbr2wnd three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads )(w +hxlr5 g*nr/ 2brgxcwyl62.0 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 res mq6c7cffdq6-h* 28yer+envksg zx:4istors are connected q8c kengffydxr v72:e4c6m -qhz6+s * 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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