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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 elect-, p:eajeoarph.5 3 csric current exists in the metal resistor connected to the battery. Which one of the following choices best desc-,. ehajep :r as5op3cribes 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 pa.r fv6 u**d.v nbgagd7rallel, the_________each resistor6a .rn*gvd.v*bf 7dug is the 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 the filam es91k+b,fw; phdt +m hi+9 i7jt3apsyent to become white hot, while the larger wires connected to the lightbulb remain much cooler. This hapihdt1w+i7;ypt+ k sj, s +3bm99 phfaepens 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 househol 5u+l4jvs:e xpd lights are being replaced with LEDs. LED is the acronym for which 5uvspj: 4+lxeone 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 length L and cross-sectional area; -g 2/)nqhdfsvmq)f4a6bkai A. It is to be placed into a circuit, but it first must be cut in half sgfvh am)4 /6); aqq2k isd-nfbo 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 made of the same materialyw dx5g0oz adqd6,n(fm :iq 2t;ht(;n. Wire II has twice the diamete2xm dt fa(q hig:dn0q; 65d; tno,(yzwr 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 has twice the diameter and half tsoq-z6l:8ej 4fq ch) ohe length of wire X. If wire X has a resistance of 4)ocqe-f6jhsq : z o8lR 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 Lw-baai4 :bzd r.p--ly and radius r. This piece of material is then drawn so that it is a cylindpb: a--iwl4d.y- zbraer with new length 2L. What happens 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 ley -wf y/9v2niight bulb. He decides to mneyi - ywv2f/9odify the filament. 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 the sa.ukp6w i2gy3lmz2 r*nme material. The length and radius gz3n2* muiyl p6w2rk. 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 resistorjsngr8wzh kw*(z, f-/s, each of resistance R, are 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.”z(fww-j hz* k, 8r/ngs 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 has inter7 2z3i w /b) l1so4f.rgcbrgi7cxzwa:nal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Tfxi4c21w7aigow7 :gcrzbb/ )zs .r3lhe 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 tovzgy 3s/b ,ff3 the right. The three bulbs 1, 2, and 3 - represen/bys,vgfzf3 3ted 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 circuit at the right. If the current 2f*l81m)l krvmq0do zin all three resistors is equal, whi)dmllmq 2v8z 1ro0kf* ch of the following 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 atads/lvpv4n2: /u/ slv h zt;i* right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bus /zauldi2t;/vsl4:h vn*p v/ lb (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 nbwuf/6j kh h 54e,s4ystatements is NOT true concerning the simple circuit shown where resist4e64nk/syh5h ,bjfwu ors 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 +yu tz.apx 0(scv2,i:g/k ;cnu n: jicX 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 conni +z /jtv iupuga0nc c2sn:,k(;:c.yx ected in parallel with each 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 resistoixs-fuf8 d7vi3is//h / f sf8cr in 5 seconds once the circuit waif8-uh3s8i/7/sf f /xf icsvds 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 resistorbs 23v* lbdhxsuy6,+ xfslxw)+ n(wl. s in the following simple circuit have the same resistance, which would dissipate the greatest p*wlhxy2.llbsn3b xxs6 +)df,u wv (s +ower?


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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 through the h26o9 ,bv8pogjrkmm*+a o :i lx 4+gjs6.0 Ω resisto+ohil:vj4j a ,mp+ 69ogkr*gb82msoxr is 1.0 A. What is 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 R1, R2, and R3 are connected in sbvuh/;ax1 .eteries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.ta/.e uxhb1 ;v0Ω, 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 R1xehn j -0+jfe,, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2Vfxj 0ej +e,-nh 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 and 120 volts. What is thee v5di /l5twne7z.m j4d97cgy0 i7cze maximum value of thy 9tm4jg/l7.ice0c5ednz vd7w ze7i5e 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 60 watt lightbulbho3( vs+vppj7i- mb 2kf+ss7r designed to operate at 120 voltsh2v3(m+p pvb- ks iosj77s+rf ?

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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 resistor2vg uv- 5ysd4s that is dissipating 36 watts of -vs u52dg4 ysvpower?

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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 ironlcc r3e+eg ooz0h779y vwq4d/hq6y-x used to press clothes is marked "120 volt, 600 watt.” In normal use,x3y064+9dqoovy7- c lqz7gh /e wce rh the 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 produced by a circuit yun2g+xjeu(rhp6l b +9-pe0 x containing only three identical 6Ω resistors? pb 69xgl(u-p2yr0 jh+eu+exn

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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 )spjdpys g7rz u 8dt27jz-4 v.resistors. Which of the following equivalent resista24 uzd -7stpj 7p8jg dy.szv)rnces 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 connectlt2r;l4fl)f bs3kmh-: h2.ivzp b2 nxed together in different configf)3 2h2;lrh4lbbvfl :ptn kzs x2. m-iurations. If all 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 total aos0i8tw 8xjsdin/8+ 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 onj+a /d wsoxs8088iitf 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 gwa 6 t00g:pq3r7wqzwR1 and R2, are connected in parallel, the equivalent res w qwg0qrz3gpa:0w 6t7istance of the combination 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 resismyu5sc8 71avoa bnq x,*kex8) tance of 12Ω when operating at ao)uv5ean1x s8,mx7bqc* 8 ky120 volts. 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(* sogdsmf,f3b9f(l e t flows through a 4 ohm resistor that is dissipating 36 watts o 9lf,g(do3ms (besf f*f 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 draws 13 amperes of current when coz.,g dzw-;uh onnected to 120 volts. If the price of electricity isw,-gu zho ;d.z $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 howy5fab)436xp 4 vdx1,zvl3m (o wcliyy much would it cost to keep a 100W lightbulb lit continuously for 1 yevb zx,41l5d (vioycpam)3w4fyy 63lx ar 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 g2*k:oih-qtw lightbulb results in a power of 24h: k-q2*wg toi.0 W associated 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 a family of six owns a computer rated at 500 wa88rbes8e-d vatts in a 120 V circuit. If all computers 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?der8-e s8v 8ab

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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 cirammg/() qdr-g)jks p2q6r,ox cuit as shown jgmm pra-s xq6ogr) ,2)d/qk( 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 re td:o9;ci.b-ri:: sng,ub9w h .fmghhsistors to form a simple circuit as shown to th . gd9i;, .uhc9b tnh:hb -r:wgsoimf:e 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 r;kp/ - xduso7y -siy9oesistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 adxp/o7 --9 iss;uyoykmperes.
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 4hgr/s0oh hf.avz6 e :hlv:b8 ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2g6.zof bh8:vsarh:4e/h vh0l .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 resistors are cg:uwy9p(lx e5 onnected as shown. With the switch openye: lpxu9w 5g( 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, *n oadnlu ) 5d.nrg8b8what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thrnn.al )g8bno*85rudd ee 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 sbguy7 q2sqp (0 +hatbot je.53hown to the right with resisu q(7 b0soptq2ge aj bht+.35ytances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ide.;z1j3tz8. sh wee druntical resistors connected in a combination serie8tesd rz;. 3eu1. zwhjs and parallel 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 id,s 3fi cuqy1g0qs6en mr.sc/, isu* myzv/y(;entical resistors connected in a combination series and parallel circuit , vicr10e 3um, nuf /syy.q*zgssc6(ms/y q ;ito 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 circug +kd+r*x1/taemd km3it diagram, all of the bulbs are identical. Which bulb will be the brigh3eg krd++k* amxdt1m/test?


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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 resis05xbjdi.ffv9no7 8t-o*sps gk yov5:tors are connected as shown. With the switch open as shown in the diagram the ammet iv9.f0fx7g d*bsjp 5 otk:von5o-sy8 er 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 u 6w*w 37hwda-shpc v+three resistors are connected as shown. With the switch open as shown in th us+w6-pc 3ahv*wwd h7e 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 switlie)e-4 /m-n b:t5hzpoq xby26r7np tch and three resistors are connected as shown. With the switch open as shoi x6 hq/tp2m4 -)ezlyetnb:po5r b-7nwn 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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