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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 z/ydc-(uiydn mdczb;9.cc6f6x lmmku p06- 3l resistor connected to the battery. Which one of the following choices best describes the 0 bzpz-mdl/mku 6m(;i9.nyx-6dc3 yc6 ufcdcdirection 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_________each go)yopt z4,.4 dww :eiresistor is theo d4wo )pzwtgiey4:,. 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 k7-hjs)s*b*( z;d dce) zjibcwire of a lightbulb causes the filament to become white hot, while the larger wires connect jck; (dez) -*dcszbis* bh7)jed 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 standardc. p rd1gk,k7w household lights are being replaced with LEDs. LED is the acronym for which one of7dgr.1 wk ,ckp 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 graphitj 005c2thn;ymwhz 08d wo7 ryae resistor has length L and cross-sectional area A. It is to be placed into a circuit, 58 0 hdy2yzwmjca 0o0 n7rhw;tbut 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 matn ,;6h d4inorserial. Wire II has twice the diameter and tw46dhs,;io nnr ice 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 but has twice5f/t)sjgzk-kk)ik. l the diameter and half the length of wire X. If wire X has a5.j/ k likkz kst-)fg) 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. T5 q-bslcf 6i*qhis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of f-5c q6qb ils*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. msduev+,dic1(.q ,hfHe 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 1i+ .( e,fuqcsv,mddhgiven 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 arh f76ujx31l vop8v m/fe made of the same material. The length and radius of each ru o8/ j6 l13vxfh7mpfvesistor 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 resistancevg0x1(f0 kmjbg5huctb-r) j; 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 5gj ub ;0g0-m (h)vft jcrbx1kto 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 m+985mf9w+z.qsx+jeec9ppm 3eyje p has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading8y.q 3j+mm9 wp9esp+j5xez fpm c+9ee 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 cx; lst )n d .ek.gb84.rv*ndzoompound circuit shown to the right. The three bulbs 1, 2, and 3 - reps8ok* nv e)nzx..d4g tr; .bldresented as resistors 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 insjexkcik0+k;yxt m 8m)ptnd8+ h0 9*h all three resistors is equal+8dmmt *h+ j0txkkcs0x)hepk8;i9 n y , 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 at4qd5r uo1biw5 k a f2b9y5xljk.+nl4j right represents a simple electric circuit composed of 5 identical lighj 1q4 l.r5oufdi+4ba92wk5xbyknlj 5t 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 fmw xr3 *m(wpd(ollowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 a* ((wxrdm3mw pre 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 6twi bt.x t:3-gwh sg0kx,:eito a battery. Bulb X is brighter 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 obsewibegxi .gh xwtt-t6s:k : 0,3rved?


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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 the identified resistor qjfv j3)7 7e dw+eo,ejin 5 seconds once the ,7dj+e e qejwo37)v jfcircuit 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 fol/ vutkp9b my43lowing simple circuit have the same resistance, which would dissip y/vmup4b3 tk9ate 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 rh t2ijgs,h;y7g;ol; 6.0 Ω resistor is 1.0 A. What ;ligygho2 r t7 j,s;h;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,pml luw1snrztyb :t,36dr694 R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a6 ,dtptn4lml9uwb y1sz6 3r:r 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:a8n;q7dbbp l , R2 andR3 are connected in parallel to a battery. Suppose R1 has 2qnbdla; 87 :bpV 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 watts and 120 vo 7.mvx +kif,ie8)e:v dx y+xj:a7xb splts. What is the maximum value of the current under these condd+v ia:7)isjfvyp. x: xx,ekm7 +x 8ebitions?

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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 resistanoire+bm hfp ,:4p,.cx ce of a 60 watt lightbulb designed to operate at 120 voltscfx:r+o 4i.b ,hmp,p e?

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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 ohl1danp cdf00: 52 qnzom resistor that is dissipating 36 watts la 0:do5pqz c1df20nnof 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 to press clothes is mx 4 pof1bd1y,x/ juo);hfyc t/arked "120 volt, 600 watt.” In normal use, the current o,)yxthd4c11/pjo yu/ b ;fxf 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 followinge4m 63xylavr: gn3+qg resistances could NOT be produced by a circuit containing only three identical 6xml36vqy 4rn+g :gea3Ω 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 reswv m ky+0w3:pristors. Which of the following equivalent resistances CANNOT be produced using all three resistors?0w: pk+wv3r ym

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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 dif3ffy-zt ci9fk*yp u;q 6w.k*f ho:d6a ferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many diff .*k-ofy qcky6ui :3z9pwd6tfh;fa *ferent 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(e*v dd3zmt3x)qy uoi ) ,tjx1 battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if j3dmy 1 qxt3 )u)t ,*z(veoidxn 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 and R2, aclgiwebb2*:5od mm )66+ zbz rre connected in parallel, the equivalent resistance of the com+b 2dl6 i6b*:5gc omwrz) ezbmbination 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 has a resistance of 1yi3om)l5f(a z0l uc2 w2Ω when operating at 120 volts. What is the minimum amount of time tho(u)l5ym3w cf2lia 0 zat 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 xkitkka;2 ugh 183f/wresistor that is dissipating 36 wattwukhg;1/at 2xkk38fi 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 current when connected to 1 g za h5jtpmu4w , hsr.k2p:79qrtvo0/20 volts. If the price of electrij7045/rv qh2:h kmgtupa,ow s rpz .9tcity 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 +i/oapfi6 rp sqs4-6m lightbulb lit continuously for 1 year atssopq6ip/ i +a46f- mr 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 through a lightbulb results in a po 5v1 rlkz sp99-ayprca9)2r icwer of 24.0 W associated with the bulb. Which one of the following choices best represents a 9lcs2rzc p pyr9rikva9-15)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 rated at 500 hjs 6/n*ya*fy s2go i.watts in a 120 V circuit. If all computers are pl6n gh*s/oyjas. yf2*i ugged into a single circuit protected by 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 isqk0+bzv lf9t2sl5omak-t a0)lr ;, zn connected to four resistors to form a simple circuit as shown to the right. ,- ll5batr0va + flzt)90zs ;q2komkn
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 reb)ar9zzcp * s)ep eo4l,p ml6*sistors to form a simple circuit as shown to the right. p9e*zc br)l ma)so ez p4*6lp,
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 sw, pe32x; 9xnew 06jc yskqzc1bitch and three resistors are connected as shown. With the switch open as shown ;3ey0w2 xnqxcj9,k1zbc 6p sein 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 ammeter, a switc3/i) 0sxzycfs h and three resistors are connected as shown. With the switch open as showy/z3ix c 0sf)sn 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 ideqj7gx/m.f d: b:9rnr tal ammeter, a switch and three resistors are connected as shown. Withq9g.tb 7:/rd njm: fxr 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 shown to the right, what is the equbj5jv fnk* 01jbte+* qivalent resistance? Assume that all wires are ideal, the battery has no internal resistancejj+eq*jb0f1 nb 5v*kt , 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 res fha: jdt611poistance of the circuit shown to the right with resip h61d jta:fo1stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resis6y2pr uoy(*zm tors connected in a combinatim6yyz(po* r2uon series 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 resistorby2pa yabiqgy7ys ; :p1,ziahj88(5e s connected in a combination series and parallel circuit to a voltage p biz a5qhyb1gia:(8,y 8sp e7jya2;ysource.
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 5 uax c ./cbfn2qr+ie3bulbs are identical. Which bulb will be the briae x2b5i3n/uc+rfqc.ghtest?


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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 three resistors are cxj.ef3 q x-b;)d:dvw konnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 3w)v.-;f: xjbd x kdqeamperes.
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 resist: )ciw sb(;8yedoe l3)0fwrptors are connected as shown. With the switch open as shown in the diagram the ammeter reads )tw idy(3b:o c)8eelp ;fsr0w2.0 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 id0 cb;wc m5w;i.ydgny*v5y+td la y 2:teal ammeter, a switch and three resistors are connected as shown. With the switch open as shown 5y2yl.*dw;tamy 5cit0y :ng vcd+wb ;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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