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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 current exists in the meta pt2b8 ck9) dcu ,haayzaco*fmv*d2**l resistor connected to the battery. Which one 8uoatpcvdz*a ,c9 m*f*ch* k 2dab) 2yof the following choices best describes 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 parallel, the___ iso ojonk c:eu(16b+(______each resisk1eb (su oi+:no6c( jotor 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 t :mxlkjwt gjw .3g (c w+95h6;)sqqrzof a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. Th mwwlkx(q39 :;z5 gt+jhw.js)6 cqrtg is 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(j/mjitc kgx er6p* *0 with LEDs. LED is the acronym(jejprigk0 c *m6*x/t for which one 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 resistotm)spwi 1uw0h -;x. i/d5tx1jf*xum tf, 4i oxr has length L and cross-sectional area A. It is to be placed into t;,.ttf im1 fx o*u h/0jw wi4xmiu)x p-5dx1sa 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 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 mate,o ;hwn2 vumj(rial. Wire II has twice the diameter and twice the length of I. If,(whn u;jvm o2 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 twi2+cx xft0o2xd stzik47n p.a+ ce the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance o2pt iz+xs+ 4f7.x con0kat2dx f

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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 :7.-hgact ch8p3ds smr. This piece of material is then drawn so that it is a cylinder with new length 2L. Whatcag3 s mph.:d8shc- 7t 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 light bulb. He.,-q(aumf yf j decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a gf.y j,(-qm afuiven 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 8q 1nb3ty n l0+/wltle:65pl;z ujnsxof the same material. The length and radius lw;lbnl8t3+ze6 pn5s:yj/ qn 10x utlof 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 resistaj:x pd9. gcsvge.(hv ;0/e kljnce R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is cos:jc0.lg;h k(p9ve d ejxv /.gnnected in parallel to a third resistor. This set of three resistors is connected 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 accompanying circuit diagram has internal resistance:, sfvza-e-ml 10.0- s e,-:zavlfm kW and the ammeter has internal resistance 25.0 ohm. The 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 compoycpaxb,i a le7ff76 7b6*b)gjund circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diag p) c77bblb,6gj aa76*ix feyfram
- 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 elex1kjm 9m9y epu 75+uoactrical circuit at the right. If the current in all three resistors is equal, which of 15meo ky+7pj9uma 9xuthe 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 simplyi: g cc,7iq1- ino+lce electric circuit composed of 5 identical light bulbs an:-ii,cio nl gcq+7cy1 d 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 statementsazro/ 8jo md;/:2nmi.qgyqzjcz19 9l is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistances? r : ;qo1l/ .izja9my /2gcn9dzq8 zmoj


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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 serien y6lnur*w6 hqw*kaw/c*4m;l s to a battery. Bulb X is brighter than bulb Y. Assume all circuitwqry 4*w6/uh;wn *lacl * k6mn 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 throug m)dg*7-u 62 c xtm bd2xn)cagqe.nia-h the identified resistor in 5 seconds once the circuit was clo mdc u7.qigx)g m-2-dtxa n)cba*6e2nsed?


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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, prn)khj+tk cq8g/5 s have the same resistance, which would dissipate the /8+ )kgt ,5hpksjcnr qgreatest 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 cju+m*irb ymy;- a,w + resistor iib;mcu ywya +j,*m +-rs 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, Ravj0lk-n4xj. fp+l *vzz w(v,2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipatesvw kvj+4j0v,l (l*zz. fxnp a- 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 Rl:8qn xxjx)8y 1, R2 andR3 are connected in parallel to a batxx 8xj8q y)l:ntery. Suppose R1 has 2V 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 wattsu(:ud/b i,row and 120 volts. What is the maximum value of the current i: u/worb u(,dunder 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 re,o3tubqh9 2qobk1 4 ;dqos6i8dxzl(jsistance of a 60 watt lightbulb designed to operate at 120 volq(dobjx t b ;kso4iu6h1do8qq3z ,29 lts?

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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 dissipating 36 waedc4+4ry 7goxc- f sq+5zwi:a t7c:q-yzxf5+c4 +r sia4 w odegts of 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 tgol+/: fwvyk9o press clothes is marked "120 volt, 600 watt.” In normal use, the current io:vk fw9y/gl +n 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 b-tst8xfzz: p.+( opz fy a circuit containing onl:z 8fztptzf+o(-sp x .y 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. Which of the following equivalentlxpujvob+3 2 ) reso23 bjx u)pv+listances 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 y wf,nm:/ wx7sbe connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can fx/w7,nsw y:m 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 xoj* f)c-n9bf 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 series using the same battery? Assume t*n x9of -c)bjfhe 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 R8bb- /84 , fxbglwrrd1vk.ke p2, are connected in parallel, the equivalent resistance oblevx.8bdk8k b-g 4r/1, rwf pf 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 ce-o97 z7mry:wl nxmg wzy6z8f:n0.x such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wo-6mong 7m. wczx9z:ly:7xw y8 zer0nf uld 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 dissipating 36ixhn41* e3 eddj; cla- wattd d* xl4;jeeh 13-nacis 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 heer( motqa lp,7l/76bd 2r4 reyater draws 13 amperes of current when connected to 120 volts. If the price of electte2,p 7m(/6qd4 lrrrey7 loab ricity 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 cost to keep a 100W lightbulb lit contnn/am7m s-ts 2inuously for 1 yeas/m tsam n7-2nr 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 thrae d,) m w:cvudxi:;:tough a lightbulb results in a power of 24.0 W assoxi cuad:td,;)w:emv:ciated 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 aqms . n9lm-zn( family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected blnz q-sn9.m(my a 20 ampere 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 simplers)ogs- f+s .e circuit as shown to thes)e+s-s rg o.f 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 batter 1b:/dohi6hydbmy8 - h b l*(y.x2cutoy is connected to four resistors to form a simple circuit as shown to th*yd2bhcxymb.8l i d(b-oyo6:1 ut/h he 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 rcpv: g)(z+ ungesistors are connected as shown. With the swig +p v(:uzgnc)tch 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 batthf0ujgy )pch vt(5tp*- jme4;ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switty4uvjg *05 c( jp)eh;phtfm-ch 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 resistors are cot* oeeu0o14g,k n) jrwnnected gw0 *j )oo4r,ktun1e eas shown. With the switch open 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 show/cf1oakev8 hpz hs971n to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistorsos71/9fv e1z8a hhcpk 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 sholqd3/w,3,;uc ;l:r t ;pcwv3z xlhxbb wn to the right with resistan: l33dbqx;w;t ,;huwrb l,cv3p/ cl xzces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belowth,x-tl 0op (cc n*5hj shows five identical resistors connected in a combination se,xh(nt5jl potch c-0 *ries 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 fivepu+plvcyo1k-l 07 y1 i identical resistors connected in a combination series and parallelp 0 v ky-+i1y17olucpl 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 y u45cfvx);5i dpe2b l the bulbs are identical. Which bulb will be the bp5i dyucfv)2xe45;lb rightest?


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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, 7vo9jf ,(xk aldhbl0,a switch and three resistors are connected as shown. With the switch open as showv,olfh09d7b ,l(a kjx n 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,hv ubg5m1c4-2ey)q f d a switch and three resistors are connected as shown. With the switch open as shown in the diagram the aq 2ufy14 m5-edv)cgb hmmeter 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 switchzgwr)u17q ykz zt7+; l*7bs5mx n)ed x and three resistors are connected as shown. Withyb7xum 7qzlnr)gt+ d)xe 1;ks z7z5w * the switch open 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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    总分:50分 及格:30分 时间:不限时
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