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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 +qidijp99z63nqj 9mr bfj73 s f,3g fwubv2 w(electric current 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 iw r uwp+jmq392f3 nb9 b,s9 f7vjfz(dijqg63the 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 resisz1u+zsy(fml:f vd4;3tyeh 8s tors are connected in parallel, the_________each resistor is the s 8;ff4t( eh+ld3ysv1szzyu:m ame.

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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 filack :pmv*qh/k6 ment to become white hot, while the larger wires connected to the lightbulb remain mucp* m6hvk/k:qch 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 lightsg)x-a(g c:5uaumk bj- are being replaced with LEDs. LED is the acronym for which one of the fu(-a)g5j x:kub - cgamollowing 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 cylindricalho, u6g(r cjnfp*/7vknv 7*zn graphite 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 resist6g , z(nu*o7k7jrfh *cp v/nvnivity 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 materiau8e;ke:o5 ie 2h rgd/x .8 k-ecpzha(wl. Wire II has twice the diamete red 5;e(2g.ekh-/a:uk8oz c 8wexi hpr 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 butew7lm 0o i jzbl k bh:2/xkli/jju/58+ has twice the diameter and half the length of wire X. If wire X has a resistance of R thlhkjiub2lkwl/oj /m/je zib 7x80+ 5:en 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 refhib6+x fq 0d:sistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the rfd :qxib06+hfesistance 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 Edmfof9uq6a/kckm/ o25/ irf b-ison wants to make a brighter light bulb. He decides to9ikm /fmabqko f265/fuc ro-/ modify 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 arrtwf *h)tzeifb-qis i ;t* -03e made of the same material. The length and radiwtz --qrh)se0tfti*;* fbi3ius 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, 1q pip/; 1b ,ptxlupd.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.” What is the equ1.i,dxu/ ppbqpp1l; tivalent 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 cir0+f+f *idj6ub j unr4zovan)- cuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The amm+rj- un)dzfofjab6+ vuin *40eter 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 to0y ckheym1eu)b -n- a4 the right. The three bulbs 1, 2, and 3 - represented as resistor1a- n-c ye)uemykh0b4s 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 , ;f)ue0d lkt2zmey ivwf;(o 0in all three resistors is equal, which of the following statementdem li 02t;of,0)(uv k;y fwzes 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 repre c.wz-: rmq3kesents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which b:3 qmk.w-rzeculb (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 isd1w y9gzft pj 4dg((3a NOT true concerning the simple circuit shown where resistors R1,ydfw 9t4g dga(pz j3(1 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 X andY are connected in series to a batter4a wgy;4p r8nvy. Bulb X is brighter than bulb Y. ;ng8apvry44 w 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 th6:izo acg.y-g;url7k rough the identified resistor in 5 seconds once the circuit was closeyig:az;c7goku-lr .6 d?


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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 simiew-jn5gin15 yiyz-3 ple circuit have the same resistance, wjign-zyn 55i3e1iy- w hich 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 km8jueg.d4f)d a6a f u48rui/circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltekd46arjumg u. i4ud) /a8 ff8age 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. Suq y tx5qyni1z.x w5zyzxk+8 a7r (3goms w,z.4ppose R1 carries51+z8(sm y.atxyq5xo,nzzkryww7z4 x 3 gi.q 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 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 arjkjzg+ j t*9t6ec2bg1t 1elo, e connected in parallel to a battery. Suppose R1 has 2V across it, Rgoe6j2,t+ctek1zb j 9g* j1lt2 = 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 coipcrnzgd 7 .cs.jh z z).5mg/wwd(2p(yl is rated 1200 watts and 120 volts. What is the maximum value of tgsj.pw5cz.nh(g(7zdp)/mcydzr w . 2 he 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 designed1q6j0 p jyj t syxxq8v)2v27lx to operate at 120 voltsjsvy0 jtx271jxv ) q2y8xpq6l ?

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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 disid68xgsg):v om eky 8)sipating 36 watts of powe8 x)8y kv6):md osggier?

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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 i 4e sh,6 tv+qiwuar e49atln),ron used to press clothes is marked "120 volt, 600 watt.” In normal use, the current +e viu)the,nraws4 q6a4tl ,9 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 k d* ),xvbubd xb/sm51circuit containing obu,1x kxd5b /*bmdv) snly 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. Wh c 4u5hyuq5 .crsy,uv9ich of the following equivalent resistances CANNOT be produced using all three resisto4.q9 ch y5yu ,sc5rvuurs?

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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 conney91e ylzyd0c;cted together in different configurations. Ie 0y cy9;1yzldf 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 powe7 1p-lbtoqo s;r P is dissipated in the circuit. How much total o1p7ol- q;stb power is dissipated in a circuit 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 ak5ajax. n -hc(nd R2, are connected in parallel, the equivalent resistanj .aa5x(h ck-nce 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 ()ek dwlls,lu oer0ntx 11)a/has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it woueaud )letrs o 01wn(1xll)/,kld 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 4e +vpscn1k3odissipating 36 watts of pokv1+no4sec 3 pwer?

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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 conpz;zob*sju)a sc +:0 jjah je.(x l.z:nected to 120 volts.e+ zab ozl;: jpj (ujs0z.j*:csx)ha. 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 cobi0het4cdoc m (xne)- / 0dh0sst to keep a 100W lightbulb lit continuously foe0( hcdhb0i/- n0co e x)ms4tdr 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 current of 4.00 A throu k08hn-vwuw2 ugh a lightbulb results in a power of 24.0 W associated with the bulb. Whiuh-2k8wv0n uwch 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 ow(x4,gmr.y qlc ns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampey,cxlg4 qrm(.re 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 circuit vq 3x/5vnhgq0+w53qdih/o bw as shown to the r/5gnh vhxqqi+ 3o/3w 5vw qb0dight.
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 hnhd2orj +y *ymzz-ga( +77v cis connected to four resistors to form a simple circuit as shown hj2(mv yd ry7za* ch+z+o7n -gto 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 resis7-zymu zt ;ch8zs .b.er.io)htors are connected as shown. With the switch open as shown in the diagram the h-. 87i)oe.z cbsrz tyuhzm.; 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 switch and three res nvfebotd8imn x7-z/v1 79fk4istors are connected as shown. With the swit7d1fx/8nfz -ent9v bim 7k o4vch 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 amme8k8gwrrur;wci t( 3n mk6t s-fupc 7+/ter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads r6n-itpr3/ uw+fmk 7wgkt(s 8c ru; 8c2.0 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 8p)- kvwhlbd-is the equivalent resistance? Assume that all wires are ideal, the battery has no internd-hbv 8lk )-wpal resistance, 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 resistance of the circp/5 5,xx1er:/q;m .nwlrw aywl9mq couit shown to the right with res qm5ewlxxrr 1q/ynpl5o9 ;am, w:cw./ istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 q)8dok ,l b+bpx5r y2lshows five identical resistors connected in a combination series and p2 l)xbdlrq +ko,b py85arallel 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 idenu2 *rjg3rfc 2ptical resistors connected in a combination series and parallel circuit to a voltp rg3u*fr2cj 2age 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 6sz 6)-bqupe(jfw eesjd93 .i are identical. Which bulb will be the bright6u)e sw3-(.db6fpiese qzj 9j est?


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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 idi4ctx w+s.tt*eal ammeter, a switch and three resistors are conns+wc ttxi4*t .ected as shown. 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 resistor 4lc3+pfxlpzex s9/lp up1,1hs are connected as shown. With the switch open as shown in the diagraupl pl/+lpp,1fh xz3 91cxe4sm 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 three fenvf(qdhy4.( ai2wuk q+ 66presistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.q kqa2f.u66iy4p+(nv hd ew f(
When the switch is closed, what would be the current in the circuit?


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