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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 d7rye4u fb 5:ushown, an 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 the directi 5uey 4r:dbuf7on 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 parall/2w,ys nr+g6hlcw isijmu 7rw/p 2 tp3z4 6d(wel, the_________each resistor is thcn+624,w /i/p6 s mtdw7yrrshgpuz2i 3w (lwj e 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 u, 36mg.-f*hqsx p1c ajwul5qfilament to become white hot, while the larger wires connected to the lightbulb remain much cooler. -6u 1.g c,aujm*p3x5wslhq q fThis 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 arx;.s7y 6a, :o yzydeume being replaced with LEDs. LED is the acronym for which oneu d.zxye7:oyay, s;6m 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 graphitbqgz(;mp n0 muow) ti/j(1+jae 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 then)qw(;zib(g/ 0j upa 1tj+mom 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 material. Wire II has twiceiuyy 0, ,,pg 8fhmlj6h the diameter and twice the length of I. If I has resy, ym0u8gp, fi, 6ljhhistance 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 bas)6qn0 xa*xp j k0x2kje1; lof the same material but has twice the diameter and half the lqajx0sxax);b elnk61j* 0k2 pength of wire X. If wire X has a 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 radic*kcx xia(xz*s.a ,;-y m8hmkus r. This piece of material is then drawn so that it is a cyl*;mx*hk c8.( sck,aixaz mxy-inder 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 wanhm7 jo8r( z5b(0 kzw3k 8axwgets to make a brighter light bulb. He decides to modify the filament. How sh(wg5rj80kobz h( a 3wemxz7k8ould 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 /l1)infdh 8rjare made of the same material. The length and radiji)nlf/8hd 1r us 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 sikk5l+cj l3 .uh:ggv .f3ay3 y7:ybqresistance 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.” What is the equivalent resavyqc3fu +lg:yj5.s.i3y 7bklk 3h:gistance 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 theb;u-sxi:7r p y accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is my;sxi bu 7:p-rost 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 com:mt 8vaen .g*rpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resisto av:*m8gtre.n rs 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 electr1h .cxr 5yn.mqical circuit at the right. If the current in all three resistors is equ.r hncyq 1m5x.al, 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 reprew t1*2f d cqw.h d-s0vg05gjjbsents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bul- 1h*cvtj 2gwgwd.00sjdq 5bfbs)
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 trueg o1uq:2z4dxoaj.bsyd)h, ,x concerning the simple circuit x 2dasyho4)u,gj.bx zo:d1 q,shown where resistors 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 X andY are connected in series to a batterqur2)y yxhir ykhk-,;2fv ,yk5 d xx..y. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If xryf5,id)k.v yqy y;-hx22 u, x.krk hbulbs 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 wsyd uih:w 5)w 4kmn)zai .. 6y1f(wzfjill pass through the identified resistor in 5 secondsds1.4:w wm ij5nz. a 6kw(uziyhf)f)y once 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 following simple circuit have thm*6ahk sc8n;fnevr . 4.ecss4e same s4rvakm*;cn6hn8 .4c ee.fss 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 diagram, the current through the 6.0 Ω rt92 znfigffc 2 v9k0h0 5oxw8aesistor is 1.0 A. What is the power supply voltaghf 082tf0k9f nwog xia2v95 cze 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 connens d4r79eaak x4ip0e p;3p g3scted in series 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 po33e7n dr9pkg s4pa4s pa0ix e;wer. 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 col0h q 7xpei0 )9*mgbs qp:zdc3nnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wm:h0z cpedlx p *30bs7gq)q9i hat 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 rat(4 j ke4cjo,px/6x ujsed 1200 watts and 120 volts. What is the maximum value of the current un/xj4c jk jpo(xu64es,der 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 lighb* lq -o jlv/)xl4s.jark6h .ptbulb designed to operate at 120 voltsvajr )6l.xp* / hkslbljq o4-.?

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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 isv 8 ;aqxgf;rw;m:y xj5 dissipating 36 watts ogrm;fxx :yj 8;;avw5qf 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 tom;na dvuven) (16d4txvinw 83 press clothes is marked "120 volt, 600 watt.” In nod8)1 4vw3na;n(x6tvi ed vmunrmal use, 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 resistawpuf2z -/iil 6nces could NOT be produced by a circuit containing only three identical /i2plfw 6z-ui6Ω 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 equivalux g8hh(u0 j-d jb i5lkn57r6lent resistancesxgik 6lr(0d 55l8b7 h-uuj hnj 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 toerwof8 mn(.hu,-l; qlgether in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be pr8;wlqu. -ml e,( hrnofoduced?

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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 x26hx2lusj;3 znb rw; 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 resiz2xx; ;6 jnswbhru3l 2stors 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 iz k.5fa d-qa,cytrm21 n parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements tmdk. q2,azfr1-ya c5about 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 designe6*vowj+ 9si xvh 0pl2bd such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amo 6 jx hpwv2sol*vi90b+unt 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 resist*pfw.xmw +*r4ad g+u* in0xh dor that is dissipating 36 wattiu0.gma ww4xfdhxd+ *p** n+rs 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 ofoojv op k.)dst3 l(x1s +i6u9t current when connected to 120 volts. If the price of electricityt63 )x+ v9o.d (1skpustoijl o 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 cosry0a +qhq )gt6t to keep a 100W lightbulb lit continuously for 1 year at a ratrh )q yq0ta6g+e 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 a po*bw tzv)x3 d/,xxmvrq9.wjaai*v,v+ wer of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the l mw*xvx),9zj*, rvvtx q3dva/bi. + waightbulb?

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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 compud 3tg)bxrwyb(d xloy*c. o+6 l5b igzhy 1-5u6ter rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampered5ogbow-rldtl 63z+x5b y xb *y.1gch6 )(yiu 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 fo3j: jgs6zg0xovrlf:-t lnl..ur resistors to form a simple circuit as shown to t 3s:ng. :-jvx rloftz.gl60j lhe 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 rencx sd7)+epoli8l 21+gjg6pk sistors to form a simple circuit as shown to the 6n8 lkxic7 +ggds1ej + o)2lppright.
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 t9j-niis4p.qhclq .na,0 j s a:hree resistors are connected ass,: jn-iics9p.j lq .q0anh a4 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ideal a n3sd/l8tbtrpf3 z a00+,wxsa6 oru p:mmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampertssupxr fz dl3:wr60n8 t+0/b3po a,aes.
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, an2n2u xv;m2oc- k0 ck-jo;jfsy ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 aj2 ojcyc2ok; mx-v ;02fsuk-n mperes.
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 circu9xorhw2o lwto56uyo54r/ s-)wld o,f it shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no intern 6of sl4u l9dr5r o2xw yt,5w-woo)/hoal 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 cir1qlz.+bb b .brcuit shown to the right with resisbbblbr1. z+.q tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ident:w/b.y.sy9 id pb:fh6)uboam59 i3gun h5wllical resistors connected in a combination series and parallel circuit to a voltbh6ubs hp/wllwfio9g :in3.:5 )b uyay9d5m .age 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 connectujz6 2-(z ia mkol:3tt,f.+gbl(lx s bed in a combination ms,tlz+f 3b k gl iztj(xu6(:2.l-aboseries and parallel 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 circuit diagram, all of the bulbs are ide b:kzb:e zzuonk bypxq 4haf84.;a5 00ntical. Which bulb will be the brightesfu 5beaz4kbon40 zx::hz 0qp8;bka.yt?


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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, q *d f*vwl4(blan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am*df*(lvl qw b4peres.
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 switc) 3l6kudsher /rca*h,h and three resistors are connected as shown. With the switch open as shown ik, has3hr/dcu )rle6*n 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 three resisto*y iri w2ibot70fmw sq,7i2s zl ymlgm*4+/j)rs are connected as shown. With the switch open as shown in the diagram the ammeter re* *rygm4/ )zmmw +t7b2 il 7siyl0ofiw,qjs2 iads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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