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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 resisto7p(w* nzt u;hqwns*bn2wq1p0 r connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direwt0*1(w w bpqspu7zh2;n*nn qction 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 5-wxgr96dtb3r3 s *pjpjnd7q:t z o8qparallel, the_________each resistor is the s3p*z9 jn36 tqxrd7 pwd r:jt 8o-qb5gsame.

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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 wgq8:vfdyro+nk.( uz2ire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becan 2v:gq(ku r+. 8yzfdouse

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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 beinxui q- u7h b bzjed(7;aoeeg;;v/ wk9*g replaced with LEDs. LED is the acronym for which one of /veq7 ibz*( u 7kag;odxh;-u9j webe ;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 grs3gk0*4ekab - t8k zaaaphite resistor 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 resistivity to the old resistivity of the cylindrical res-kaetab *k3az 8 k4g0sistor?

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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 the same material. Wire m/oauppsf ..; II has twice the diametu os.p p/.fma;er 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 madbd4cv6;k 2(2flvf( cbavbn ( f6np 7vfe of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistafblc vf bbnf2(av76;vdc4np 2(k6(vfnce 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.b6em *zqg2o vp6,5 agijqfe7 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 thisqe z g5i.*gam7peq2 f6b6ovj, 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 makdrs-bk5 93jtt9* tf -emgo y( +;oxddxe a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in ord r*5-9(-d3t ;oy+ b o jdtxmdktgsx9feer 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 the same material. 65xw m)tw zx.qThe length and rax .mq5)6xzwwt dius 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 conny yb(ywp ,do)(l,r l7x:y)dme ected 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 this arrangemen (o)yrb pl7y(y,,d:)exwy lmd t 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 diagrch adl 6-boy;-q0+e1ns*aqzb9 z9 i jram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1a s0y+b9;er*l6bzca oih d -nz-qqj9 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 bulbs 1, 2, 78.17 qvnvr axqvj4jjand 3 - represented as resisto xnq1j7v7vjv8.j4r aqrs 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. If the current in al4zlw1yu a7d8u gua0/nl three resistors is equal, which of the following/n0yuu d 714ulgz8waa 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 circuitrfoy4( or +cni,* ;hd t+uq3jg composed of 5 identical light bulbs and 2 flashlic+ (ynhf+3;jq drgo u* ro,4tight 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 twqmw;,peus l 763ia .orue concerning the simple circuit shown where resistors R1, R2 and R3 are have equal rea;eu.p3i m6s wwqo,l 7sistances?


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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 connecte* :cur 45- bzrw35mm*rgkohhdd 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 the fokh mo uh-5zr 5 *3bcgrdr:4w*mllowing 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 co0 +:a+s cn9n ei;bnyf zq,j.jdulombs will pass through the identified resistor in 5 seconds once:nj +n + qjye9iza.f; n0dbs,c 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 folljut7n1 68r 6n3b6nu sxa,hkslowing simple circuit have the same resistas6ul8a63,unnshk x6bt n17rjnce, 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 curren* m 2nhv;fcrcj2 1rpg9t through the 6.0 Ω resistor is 1.0 A. What is the power supply vmf2p vc29jh*cn r1 ;groltage 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 series to a battery. Suxt5)cacmxh,ff 8-t k4 ppose 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 t fc-fx 4c8t5am ,t)hxkhe 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 .jtjl;m 8y4 iora ,ox;parallel to a battery. Suppose R1 has 2V across it, R2 =xo. yi r, jml8oja4t;; 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 volts. Wi)w3x r ,+vlpyhat is the maximum value of the current under these condition ipxylrw)+3,v s?

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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 77 5zt*4*.wk zcmvgr lfj7s6p jq zac.to operate at 120 vol6.4rqk 7zjvsg p7*m5tj f acz 7.zc*lwts?

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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 flow7e1 -)knvar-nrs al+zs through a 4 ohm resistor that is dissipating 36 watts oan+rzl - - esv1anr)7kf 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 clothq1 gdr,3mrrt;es is marked "120 volt, 600 watt.” In normal use, therd 3rqg1,tr;m 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 could NOT be produ-o) l2wsen6 abced by a circuit conws2a -b)o len6taining 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 folld8ovio .ssq3ddl +-,r t)z zl3owing equivalent rd qod+rovztl i33,s z8s-l).d esistances 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 together0an-fgk;b7 v e in different configurations. If all three resistors are used in a circuit, how many dif- b7a fvgnke;0ferent 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 batterl t .27 lhwjjh kh uo4/ieu5qtb5pyqj040lf(+y, a total power P is dissipated in the circuit. How much total power is dissipated in a bh 0 t+l7l5hh(jujq of0pki.jtw2uq/ lye544circuit 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 in paral q n3l(*3sjxoflel, the equivalent resistance of the comol3fs*q(nxj3 bination 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 when ope/600,a6 c-x5nm: jwr, vbw shebcsgx zrating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fr05 m r ,xc ag60bsvhec-6/jwznbwxs :,om $15^{\circ}C$ 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 through a 4 17 *5agebvj8fl1 3-wsm gfxfzohm resistor that is dissipating 36 watts of powflwa 8sz-13bgfx 5f1v ge*j7 mer?

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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 c-)f z3no sa8ldonnected to 120 volts. If the price of electricio38)znls dfa- ty 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 contin9go;9awh 23) syq91)n6dqxc/bqh(qzwuy gjm uously for z6oqu whq 1xq 9q/9g )saywdym9h2n ) (jcg3b;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 curre el.n+tiaz2y vd.2 l mtjpeao*w9i35( nt of 4.00 A through a lightbulb results in a power of 24.0 W assav olee.23py iw5l9na ztjm+.(tdi2 *ociated with the bulb. 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 1s drc72 hjjzv6m1u++hmd w4 pa family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged inmvu +cz61dmwh1pj24js 7+rhdto 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 is connected to four resistors to form a simple cirguoz0aty*g 4,u6ekfi y,zvqwdf; 7 e 31+1mdrcuit as shown to the right.e1 udo 10,,a3z+ftgq m7gz6yi4rd*we yvuk;f
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 td/ 9a5s:eu ri tw/jt3io four resistors to form a simple circuit as shit5/t/ ra9wd:euij 3 sown 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, a switch and three rezt/4kbl/+) ohqb. gyv sistors are connected as shown. With the switch open as shown in the diagram the ammeter readslz tkb bqo vygh//+4.) 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 rex jf8z 0e-8rr+md4ubgsistors are connected as shown. With the switch open as shown inuf-40z8x8mrrjd b e g+ 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, nzkfe+4*6 xl nan ideal ammeter, a switch and three resistors are connected as shof4 x6 enz*lk+nwn. 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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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 resii-i)wm- b a4vmstance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have idenib4v)m-m-w a itical 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 h)8t us98szxemi5 7yj with resistanciy)8m5e7sxutj zh 89 ses $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resitanzrs/ 0s, w.imwha -mu;6+bstors connected in a combination series and parallel circuit to a voltage sour b+w.asuztar 6/h-;im sm, 0nwce.
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 resist;h*2u:0 e sl)nskye8cbz;t lhors connected in a combination series and parallel circuit to a voltage soy0el :*8e;sc;2z kuhl) bn hsturce.
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, j0cu -snuumw3st-1m 2 all of the bulbs are identical. Which bulb will be the brigh 2n3c1ms 0s-mwu- tuujtest?


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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 con8.o0dt tancc,hkwz*(ym *u2c nected as sh,. ny8*twamzot( d2hcc 0c*ukown. 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 battery, an ideal ammeter, a switch and three resistors farkt : 0cy h d6l),x;2e7lfkoare conn;2dylx: ) e lr6ft 7h,0acokkfected 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 ideal ammeter, a switch75vg ; 7fb9 3wywca3-louacgs and three resistors are connected as shown. With the switch open ac 7wc asyav3 9owgg 7ub;5fl-3s 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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