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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 currfe kq+xu-sk4r1 ugp +-:zk(kcent exists in 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 direction of the k-4eus+x:gcq u k +k(-1k fprzelectric 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__, 37.c3mcjbm4 h8wkezrp 4bkh _______each resistor is the same.kkcr 38hjhmw me 4 b7.,3zbp4c

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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 filae7/ekqw:yu: 5m)rnoo ment wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Thisouew/m7ryoen k )q5: : 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 L;iz/0i0iwwe f EDs. LED is the acronym for which one of the fo wizif0/wi;e 0llowing 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 *xfs.v nwl 7 h+pi5ox6)4ndiat;k2h llength L and cross-sectional area A. It is to be placed into a circuit, but d)2 .*navx+;kihplsw7nix flo 5t6h4 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 made fnvd 2h*9nkq5a( ,7h o mx(wmrof the same material. Wire II has twice the diameter and twice the length of I. If I hahrd(q,m5nhm7*2vf9knw o(a x s 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 theynl n/bm6 z(rv yali(4 kus7,5 same material but has twice the diameter and half the length of wire X. If wire X has 6z mrb ( ,(syl5a4yni7/vnulka 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 materiaowus;o6 oo,p: l is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material bec;uwo ,:os6opo ause 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 Edisek4h qpkox:8de l( i(:jkzs:.on wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the l i:so(:dz. q4(elj8k exkph:k ightbulb 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 made1i(jkc p.trn. aj7hs* of the same material. The length and radius on( th1j.7j.rp*c kisaf 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 bas kj14f 69c7pzxk5 fzottery 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 ofxo kc9z z4p6ff5s 1j7k 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 dig9s vrfd.fpu2 8o(: dy2c9rjuagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.pjrd28:g.c yf9su frvd 2( u9o00 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 cicu 6hw2jmv04kfnnfyu-; ; 9. fif wg)frcuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diaf 2j v4 ;w69iugn-c. uw)kfnh;fm0yffgram
- 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 b05by,vec djpz27q h2. If the current in all three resistors is e vd,jcpq70z 2b5b2yehqual, which 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 at right represents a simple electrics6zk.:pcflfn8-hrz sy pi.cl*k(4 3f circuit composed of 5 identical ligl k6likcrf(cs8s*. :p 4 3-yfpnzz.hfht 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 true concerning the sip ,(f ,ycrm4rgmple circuit shown where resistors R1, R2 and R3 are have equalp g(fyrmc,,4r 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 battvh owuf c 4;qk+w( ql7:em)f:uwun8j :ery. Bulb X is brighffuvl :)eoum uw 7q4:q+w;nhk:cw8(jter 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 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 s6 +bryq ul64hc ;cy4q through the identified resistor in 5 seconds once the circuit was;y+s hryb 46ucq46l qc 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 resist0qtnn;bjp0 x(-1 fi ayors in the following simple circuit have the same rt1;nny(0x-a i0 jqfpbesistance, 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 through the 6.0 f :xb8py5hcw p fv2zx;ubvaw wblz;6 o+y 5(5)Ω resistor is 1.0 A. What is the power acfx)y w8z6w5wblp uv 5(2 x;+z5 ;b:byvpofh 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 ser cnpjpm(uu z +3fd(y7w4;jh87 ;qdhfiies 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 is the voltage acro4(mf d;pqy7iuud jf+wnzh (j8hc73 p; ss 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 c*awm q -*r3cvu/ p*hhgonnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curr*mghu* 3 qa*h-vw/ pcrent 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 the maximu t 8 qdoz4+5ou0sis+9ucg2rcw)p0tdtm va ipsc2q8u rg) du s+zc05tot90 dtow4+lue of the 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 lightbulb designed to operabtm53 d3j znw*te at 120 voln mzbdj*3t w53ts?

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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 +v f5h5 k/ovb*kx)x apohm resistor that is dissipating 36 watts of 5xpfovx ak/v)b5k* +h 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 irc0htv*gt ;gtm3qq )i h3; u,baon used to press clothes is marked "120 volt, 600 watt.” In normal u3v ag0,ht3i;q; g tu qbhm)t*cse, 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;f mi;s v 23 +q8qw2lkxfgbg* s*4dliw be produced by a circuit containing only three identical 6Ω resistorgi+ 2likxwg3q8f2bl4 dw**f sq;; svms?

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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 followink khqvc,b cs)1/pnkc+ e o.o, wh-/pirkjk)/7g equivalent resistan1,c/p))kpnok , h wk boc/s/.iqkvj7 k +eh-rcces 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 kxw(xd-bad( wd )s/:jdifferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total re:-)bddj wk/dx((w x sasistance 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 powepej)1 sb7r zm2r 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 resistance1 bmz)2rje 7ps 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, havinghyj pc,h9 /fcz(ll y35 resistance R1 and R2, are connected in parallel, the equivalent resistance of the combinatio hzc/j( fyp9,l 5hyc3ln 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 desig ;t/,6-ny:uxj8 zey,1+ tmeyd, nigrz j amtz9ned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water fre tz+jm- ;y,,atmn/zyry,:u1z8xje 6 itn d9gom $15^{\circ}C$ 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 dissipatnk3hg;of7x sl w/( sjq c6j/v5ing 36 watt6/ksj; sqj(37cgvn x/fwlh5o s of 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 currenf0fz j9 ;l,ar.cxzy x4t when connected to 120 volts4 xrlzz 09jca;xyf ,.f. If the price 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 j+p/1 ++ tl +gnqjhvnurjk+d,cost to keep a 100W lightbulb lit continuously for 1 year att j,ung+hl n+rdq+v jj1 /+k+p 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 throuu/5w) 4e,,arp6d hsr/ak4skt 6qiloe gh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choicee, aw)tkos q /lpi/e4hd6k,ur6s54 ars 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 ratz8 ,hp 2ardj)led 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 number of the computers can be operating)j h da8,rz2pl 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 batteryf6+p do3p3g u-z1eutt is connected to four resistors to form a simple circuit as shown to f6+1otd -uzt ge up3p3the 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 connecsxtxb-2-b ,h ,g9kccs l9ccd ;ted to four resistors to form a simple circuit as shown tod,cxk,clb9xch-c ssg b-;t2 9 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 ideal1wh*e :ylwugyv:vumvt, t 0 1y+ha( c9 ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the di(wvtl* uevuyv, ma+ 011gw9t:yy hch:agram 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 ideal ammeter, a switchlvy 5.ya.l e+j and three resistors are connected as shown. With the switch.v +.ajl5y ley 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 switch and three resistor li m(m; *c.9 kxs,huatfd5zf/s are connected as shown. With the switch openktf* ,s.x5l9immu (f /zhcda; 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, wha rhy+ls +xh q0,;lok.xt is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resi0 ylsr+xh .,xkq+ ;holstance 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 q9o 7 6)8 7qaxjkuk5gydi-jo sof the circuit shown to the right with resistancek7aog - od )qqji7k96jys 8ux5s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connecs,6no ) j3ybvtted in a combination series and parallel circu,3 )ytonvs6 bjit 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 iden7y,yvvewi p0 6tical resistors connected in a combination series and paral vpy07yeviw,6lel 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 circuitq2g7hp:+ka:9yd2 wddl6p mlg diagram, all of the bulbs are identical. Which bulb will be the brightpdq9amw:ydd 7 2+2khl6:gglpest?


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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 theu 3 .dehs;pvrsfl1 ).ree resistors are connected as sh3;es..urev lh1 )dspfown. 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 ammem5 cgi:up8;h x po*.rater, a switch and three resistors are conn.:gx; uh i*m85popra cected 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 switch and th jv(0)yowciml0 v42bdree resistors are connected as shown. With the switch open as shown in the diagram the ammeterc2y) o0 ljmbw(vv40di reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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