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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 curr -xy cknj7*.4o za4plzent exists in the metal resistor connected to the battery. Which one of the following co x7 nyz-l4pjza4*k.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 rw7 .jwr1ybcea 7yu05l aj6hr:esistors are connected in parallel, the_________each resistor 5u.w16 jra ec7h:aw 07yjlyrbis 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 of a li04f ix r4svlc(ghtbulb causes the filament to b4sv i(4crl xf0ecome white hot, while the larger wires connected 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 standard householuag+- sa 6ici6s.l* (ohwqm*jd lights are being replaced with LEDs. LED is the acronym for which one of the followinw6u g*i-ao.smh*c( i l+6a sjqg 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 length L and cross-sectional area A7 q0z)ylg c+ls. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 +s qg70ylcz)l 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 samndx. a0n(y*dy mmxz)1g cv 9)ee material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has r )(0cv)9da mnx*zdygem .1nx yesistance

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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 o;(1pdwu/ykn au *bs/a8w i e).mf)lspf the same material but has twice the diameter and half the length of wire X. If wire X nuad1 i w/pf ) spe(u8bswlm*k)a/;.yhas 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 radius r. This piece o:qxz yz54z.jv2uwmgv 4g3y g/hy2bo 0f material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this pv3.g 4ywoj:q/vg2 h5 uxzb40y z2ymzgrocess?

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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 decides t;b4g5n xb7u6 perqj2u o modify the filament. How should the filament of a lightbulb be modified in order to mak;b7px 54qn 62grjuebue 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 are made of the same mapnmlc3 r t-kzc h9 +odl8f+ 9qr4ub*-iterial. The length and radius of each resistor4 kdqr8h p9 fb-mtl3z i* -clo++9ncru 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, br7r, djwo/, sare 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 res,7/r rsbd,o jwistors 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 circeaf0rdoi 836 xjio64meo3,oe uit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 3dxma6 o3o6erioeoe i4,jf 0825.0 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 compound circuit shown to the right. The three bulbs 1, 2,.(.3gqvb .hn xvtsh ))r z1sas and 3 - represented as resistors(xa)nvh bz tsvs1g qr..3)h .s 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 r(ci ,b: 4hrg+9v u1xxz4 pkaein all three resistors is equal, wh(c4 ,gz+ :4rrh1x exkiuv9pabich 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 electric circui 43cnueq.3 8b mz-ngzbt composed of 5 ident.z3 -3bz qeg ubnmc8n4ical light 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 followinbub80n jfk) )ag statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 a)jkb)fba n80 ure 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 battery. Buojl 1* 4vecb;c;3*gexkws- xa lb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each otheaxc;o-;*4lb * js3vwgke xe1 cr 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 passsosrqo ua 54 8/6uqud: through the identified resistor in 5 u u8s /5uodqaso 4q:r6 seconds 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 the 9d muhtuhs(z yt8- w6.same resistance, which wo6ty 9( -uzswdm hhu8.tuld 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 4fa8 2xo ko, 1 /mr-/ewelxdso resistor is 1.0 A. What isx8eom 4,/srd kae 2-l1 xw/ofo 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, R2, and gs.0ead ,eh a9xdr9grfi reuk(s71:+lgb f) /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 di 1fhid g esl g+9/0gxfu:sk7errb(,a9d a.)erssipates 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 resistgwl 3:zyi9 um* z*cfd4ors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2 4mz*g*fz3wdi cu:y l9V 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 120mwa ucd0i5my.ww2 +* d volts. What is the maximum vaw w+2i0dmy5m*wa.udc 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 wsil( a5v z;b;wb;kux4 ra4o,operate at 120 voawb; ;rous4k xw4a vlb;i(z5, 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 z+htbk*+:qpp9 p qx- uke1e,p watts of power -p x:p+teqz1p be*puqkk +h,9?

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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 clothe; 7fb;qtxn7tts is marked "120 volt, 600 watt.” In normal use, thqtn f;tx ;t7b7e 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 followinf:x.1yag8ey s(jimf iqm2-w 1g resistances could NOT be produced by a circuit containing only three identical 6Ω resixwfa: g 281y1i-(m.msyie jfqstors?

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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. )xitz5; zwjp.* hdk f(Which of the following equivalent resistances CANNOT be produced using all 5*d(xw;j )tzi kf hp.zthree 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 taz/t s,4yd 84jzmggui+b 1/rpogether in different configurations. If all three resistors are used in a circuit, how many different values of total4/8,zu/dab+1 trmi4pgs zy j g 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 totav:kfye(vcz3 a ( k/zy9w;o1upl 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 the internal resistance of the battery is zero.oyva:cz p39y wfku/v 1zk((;e

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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 67hql tsb5y25pxi0i xc,4r lm5oyh) fR2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of m57bx2yf cs65,h5tl xyo4i rq0l pi)hthe 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 12Ω when opera)n :,uryp,up7 onz (yb1o,e fxting at 120 volts. upynez ,p1ofnr:,7uo(y)b, x What is the minimum amount 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 sa9*d4(ooy51 h v 8xf ngi(ozna 4 ohm resistor that is dissipating 36 wattss491o8 dvhyi*n(az (xnf og5o 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 whf,v1g :crj+qu g*b3ez0d.j cm en connected to 120 volts. Ifc,qdr vjuc+fjg0.zg3: *e1m b 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 cost to keep a 100W li+p1wl/rcti3z ghtbulb lit continuously for 1 year at a ra3rlp / 1i+zctwte 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 thjln-i)v 27ba0w/rj c ,f5fa uddh2es9rough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following chfu)5,-w9blc2/a s7 2j earhf i0dvd njoices 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 famil 134mfvrwk+ yly of six owns a computer rated 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 at the s +r3 yfmk1wlv4ametime?

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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 xoho 58 gvs:dyyj-h7 y. f(q4w)n9euzas sh)sdyn o:5j g yu-v(4 oqhe yx87z9fh.wown to the 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 resistors to form a sk vhml9idx4p.:j b6 /limple circuit as shown to the righ/likxlhbp: 9 m.4v6jdt.
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 rw5 .cpfnv; jm8esistors are connected as shown. With the switch open as shown in the diagram the ammeter readw;pc mj.vn 58fs 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 switc80ze bzkyea - qlt71y9h and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampz-8yy7l9 ea qet1z0k beres.
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 tuwyuy 6hc4/3t hree resistors are connect wu/ht6u3y4cy ed as 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 shown to the right, what is the equival bi0kp(-uxa4,fk gss;s ab,w2 ent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistor xka;ps(bfk-u,2 s,a40 wbigss 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 shown tl)ln9:b4 kdac) t o8v to the right with resistances) clt8)bk9:ondval 4t $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connd3o 2l er+4+yt pw1tfwected in a combination series and parallel cir2fo+lw yrtde314w p t+cuit 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 resi5;7tpd5ev zp * dsfw8qstors connected in a combination series and parallel cir8qs;f*5petvd7z d 5pw cuit 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 thejk,ary lhzjbwc hc;+b7. :3g1 bulbs are identical. Which bulb will be the brightey w.bz;7h:bka rc 3c1glj,hj+st?


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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 resisrxc )r6ub4l1etors are connecte e6bx1 lrruc)4d 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 resistors ar*ge cgr2h eku3s:w 2ox,oe dcq4/s71de connected as shown. With the switch open as shown in the diagram the ammeter reqcgs1 sow,*22rk3 c 7ehgdo:/x d eu4eads 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 resgjzru(z2p k b+21(vwv istors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2vrk(jw b zu (gp+2z1v2.0 amperes.
When the switch is closed, what would be the current in the circuit?


参考答案:    
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