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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 irn d +u h :ds.xw1(v-/y7sczmmn the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the directinc(yzdm/wxrs:h7-1. u+ s vmdon 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 iiuw1-gu(s5 aistors are connected in parallel, the_________each resistor is( -su5guiw1ai 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 +b hpio9j7/m 7+qoguqy so,a8thin filament wire of a lightbulb causes the filamento,a oj ob+s/u78g9q 7ihq+myp to become white hot, while 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 household ligho ,w;* tepm4wu2iz)mlgl; 4jsts are being replaced with LEDs. LED is the acronym for which one of the followingt*4mp,; umlliwjo s2g; ez)4w 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 reh.zqd-q ,r7 cto .q :6appx-trsistor 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 rq zh-x-ro7 :tapq .,pcqr6.tdesistivity 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 madk xlx*c3r)qv0 (b hq+pe of the same material. Wire II has twice the diameter and twice the length of I. If I has resistx+cqb*0v p hk3 x)qlr(ance 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 halfs8op,a6bfc 5 n the length of wire X. If wire X has a resistancb ,p58caso6n fe 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 ma uyl;8:j:raxt;fgzuw 99m4l,a nk6ec terial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mater ;:9zk6a;ucu4tx a,wgeymn8ljrl9f:ial 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 l0;be se 3dx 1k.j3onenight bulb. He decides to modify the filament. How should the filament of a lightbulb be mo3k;.x0 ebn 3djeon 1esdified 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 5fo pj2, ggu5xm9 9jmtsame material. The length and radius oxj2f,tj9m9 gg pumo5 5f 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 connected to a battery uy+zq*5fw;1js f3 gsmin 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 w1* mzq3 u;gy 5js+ffsconnected 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 acconpa8 5g mjjde:qze 00.mpanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Tjje0pqg0 d5 ae:8n.zmhe 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. Th// r cm-iadf5s w z0*uvspp41ae three bulbs 1, 2, and 3 - represented as resistors in the diagram 45 *a/ frs-mups/izad01w p cv
- 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 elec3axpcrc9 mwsj;d,s+- trical circuit at the right. If the current in all three resistors is equal, which of the following ;c3+d w,m9xarjs c sp-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 represe (g0j)r:kowvs0gfawxd0 ) n1 gnts a simple electric circuit composed of 5 identical light bulbs and 2 f r01()o k)swgajvg0 g0xw:nfd lashlight 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 true concerning the simplew1qnxhe6q: m3:op- jk/mzz q * circuit shown where resistors R1, R2 and R3 qqzk j1w hxm3::n6p-oe/*q mz 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. Bulb X icg o-rlg,ubbij9em9au q0;as):o9 8z s brighter than bulb Y. )0ab8 uogurlqo,e9;9-m:9zbcs g aij 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 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 tvlme)te* brvy(*wf6ecx u.at (++f7whe identified resistor in 5 seconds once thc t7+yvv6xw .leffuber(tae (*m+*) we 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 following simpl 2.qroy eu9ug5+ z*y7pq,lagle circuit have the same+ p9gqo*yegullr y.aqz,57 u2 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 titrodie zx +-, jf;/8diagram, the current through the 6.0 Ω resistor is orz;/j+f x,die8t t-i 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 cona9m8s.81avx i9jwb, u e: uxeanected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistsx,vm9iu we b u8e 9j1.:aaax8ance 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 xo, ;xa hajw01to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissiphxx aj10, oa;wates 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)0* xbnpva:fww 9yg +rated 1200 watts and 120 volts. What is the maximum value of the current under these condition):x f rbvaw*+n0gwpy9 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 to opplst:w o;za, sx2y5 a3erate at 120 volts25 3s spa:;wozl,xayt?

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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 is dis2vcfi3 ,vb kp6xli:, dsipating 36 watts of powcfli:vbvdix 6 ,p, k23er?

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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, 600 watt.” Ingaio0jd1m b yn4d .yw8 ip 4)6kj-jx(u a.nhi/ normal use, the curre i. .ng jon-i x60 )j 4(dk8daw4y/pyuahjmib1nt 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 resistanceuacl-eiwn ,5)o3 6kgqs could NOT be produced by a circuit containing only three identical 6ilw53gq ,)o e6ka-uc nΩ 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 equivalw5j* id(mo0 jaent resistances CANNOT be produced using all three resistorswj *5m0jiao (d?

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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 differen q9r8t.ed wn7u-5pllc f qz+5wt configurations. If all three resistors are used in a circuit, how many different values of total resistawrzq.5l wtfcq-5 8l9p7n edu+ nce 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 reskm;vhj5koq 7sj)z92wistor is connected to 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 serimjhq;oks29k5) w z7jves 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, haf/ ykw0.e ww9oving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which ofw 0e9 .fww/kyo 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 ap-(oip rhko( 5 resistance of 12Ω when operatiph(k5 o-o ir(png at 120 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 current flows through a 4 ohm resistor that is dissipg((nc+ev rz dog3g *a5ating 36 watts of p*gagc (v5zd (rgnoe+ 3ower?

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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 ./tuk + ft smie,s(ba4r;kr/ sto 120 volts. If the price of electricity ba+fsi4s .u(ksmt/t /r;,er kis $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 continu24s62y / zo mdmd)gpxuously for 1 year at a/ 2pgomu y)xd2mds64z 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 results in (w0h8iv-nsnm a power of 24.0 W associated with the bnv8s(0 wni mh-ulb. 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 ratu 1:mhptm4lbdz s lizqv;(e3m:)/ kh2ed at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum nummmp: ) 4blqze i 1;lhtz /dhskuv2(m:3ber 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 t-6 x izcpfod9*o four resistors to form a simple circuit as shownxd9p6- *c ofiz 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 resistors to form a simple cir1 +k(pzwf (g ktwh*j5tcuit asj f*p(zw1 +t5k gwthk( 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, a switch and three resist/ rw 9gx0aay.pors are connected as shown. With the switch open as shown in th9wp. rgay/a 0xe 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 battery, an ideala z 0djmm3m(8ymgqc9: ammeter, a switch and three resistors are connected as shown. With the switch open as shown inq( am 3ymzgd9m m80jc: 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 ideaa1h)ox(7vb u kl ammeter, a switch and three resistors are connected as shown. With the switch open as s)x va(k 1uh7obhown 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, what3o l(dnjoql*b.b*d p1 is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resib3*pjododq (b1l* l n.stance, 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,cp mh dmgcml,od8nc /o 1/)s/ resistance of the circuit shown to the right with resi8c cmco/ mpm/d1l,h/) so, dgnstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistork)o/n ;62s p+cetg jkts connected in a combination se+pj k;6tt)nkcg/2so eries 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 identical resistors connected in ayu v:8wbsx7 ezq7vtc/7 iy )z) combination series and parallel circuit to a vou:btz)7 )w7qi/ecs7yx8 vv zy ltage 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 circuiy,omo5vr:,e4y n rlj 4t diagram, all of the bulbs are identical. Which bulb will be the brighte4 5vr o ,:my,njy4orlest?


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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 batter aw;dhi grgl cx3;ctx:62z- w/y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th;gz ;l2 /dc3-hgwxica6t:rx we 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 lrofid mqsl1,vaje50zyj. oy3,1ri 0sp p+6 6 resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesl+aozdloy6yr m0p3repf1q is, 6.j10s j5iv ,.
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 ax:5ui/v ia) ftfp56uqw 2+ohgmmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amp52u5ti pwx/vfh ai: 6q ofg+)ueres.
When the switch is closed, what would be the current in the circuit?


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