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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 nd+*ykq,n d 9nexists in the metal resistor co9 n ydkndn*q+,nnected to the battery. Which one of 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______;rcg mt+syo q4dor:n*-4yp i5___each resistor is the sa*d sm r5 io4n4r+o:qp ;yyt-cgme.

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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 filamelg adfqh,1 9hk56y (4p.gi aaent to become white hot, while the larger wires connected to the lightbulb rem5gh (.iadh q91 pflg,a6yae 4kain 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 household lights are being replaced with LEDs. LED is l6bdh(: r*jbithe acronym for which one of :br* 6 l(jdhibthe 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 resistor has length L and cross-sects 2t)x9 ej:qr 4ig82p2om9gfj *nfvdaional area A. It is to be placed into a circuit, but it first must be cut in half so ths g me )j2t4qn9fof :g 2pi8xd9*var2jat 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 material. Wiry(z l rtg(iqk5)z: vl5e II has twice the diameter and twice the length of I. I(k5zyv ) :ilz5t(gqlrf 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 twice the 3hn6jdlc fa s:u m60x)diameter and half the length of wire X. If wire X has a resistance of R then wire Y would had:6ufm n3 )alc6h0xs jve 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 resistommzhs2bz:+9 3:wr5 qk/ smdgi r 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 resistance of this material because ofzm9/s:sd3g r 2imkz+hmbw 5 :q 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 l vb9 4 (urrfor21iqgn5gp s(h(ight bulb. He decides to modify the filament. How should the filament of a lightbulbn4gri2(gfrpous(hb 19 (qr5v 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 are made of the same material. The lengtx,q 6b8tntn7y h and radius of e ,8qttbynxn76 ach 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 resistan afak-*l4 xt0fs:nbpye b6:4f ce R, are connected to a battery in the following way: “Two resistors are connecte-atnffyx:k0l4bae : fps 64b* d 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 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 dia,p)dj l (vig+a7p ygx(u:f1xy gram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter rujy gfxyai (x,gpp d (lv)1:+7eading 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 comp :yjwef54 e4+np.ea 4;j y*zge7 flizwound circuit shown to the right. The three bulbs 1, 2, and 3 - represeep:yejan4 .if4+54z e ge wwzj7l*fy;nted 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 electriksoimez.i xwzub.:or(b8 y6f.:d )y / cal circuit at the right. If the current in all threko:f si.(:)iyorby z.8zmw.x/ edbu6 e resistors is equal, 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 rosqq*4 y,2wsv epresents a simple electric circuit composed of 5 identical light bulbo ,v4w y2*qssqs 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 following statements is NOT truj2l*re5j*w il)2 ooak l8ot:ee concerning the simple circuit shown where resistors R1, R2 and R3 are have equal i:2ot)5e* oojl wlel rj*2 ak8resistances?


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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 coynnv(xi y (cy3hv hfi/6(3z, rnnected in series to a battery. Bulb X is brighte6(x,vi(rvyhh3yn 3 zi c fn/y(r 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 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 through the i2snpe5w*s:cq+0 wxt2 je nm b:dentified resistor in 5 seconds once the circuit was closedbjtmsq2e e xn5*:2pc:ws0n+ w?


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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 follow. si1gz atpxll r8f,m69 y093mmvop-qing simple circuit have the same resistance, which would di l08qvxmf9 y-1to3rm lzmi.p ,g9aps 6ssipate 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 accompfs o)gd4u t6 :tprbc2-anying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage)fdtspb: ocgt246 ru- 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 nk nu3c6o;d(pR3 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 dissipates 6.0 W of power. What is the voltage across6 3onp;kd un(c 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 connected in parallelgoa8*ycwzeuy)j. 2 e* to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thjwua2 yy ge*z* .ce8o)e 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 volts. What is td25xmt sx + pk7s/j a 9f5xdtmr/h 7ic,av3l,xhe maximum value of the s+amhxx5da 5,id,l/ j9 t tfxckps/2xvmr77 3current 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 skl 6ps-ef) 4mto operate at 120 volts? ms p4-6k)slfe

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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 dvwoi j5i is(-r 3j,yl-issipating 36 watts of p l isw -53(i,jojirv-yower?

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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 marked "120 volt, 600 watt.-tvr3v 0 qwpz/u 9maz5slu s8.” In normalvzm80/v u. t35ulrza wp-sq 9s 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 resistances l8m3akr4x 02s s,gs qtcould NOT be produced by a circuit containing only three 0 3stsls8m2 x g,akq4ridentical 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 equiv)wo a)7akg;a dalent resistances CANNOT be pro gado) w;aa)k7duced 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,zr;rc rgf 7/t;t/zgi5* mxvq connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be fi; t5*rqg; gzv7/,trzcrm/x 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 connectenr )m9,x3bw)j 0 oixqed to a battery, a total power P is dissipated in the circui)ewj o)x3n irqx9bm 0,t. 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.

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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,-)f gr( wg8fi/xtn9cm are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statex( f/w8tfc)g mri-n9gments 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 desild 8 +e9sqsou jcws25w.mqo7s1a .ni:gned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to war 1unqciq 9oj5se8wsl.. md2w+ ss7:aom 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 flo/hzkz.+f;q yb ws through a 4 ohm resistor that is dissipating 36 waq.z+ f/bzh k;ytts 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 conn08uz* p hy 0tmm-unz:6/ beqqeected to 120 volts.u*eemz8- yz6 ht00b pu:qmn/q 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 cost to keep a 100s39 qiuls 3lb9W lightbulb lit continuously for 1 year at a rate ofsq s ll993u3ib $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 powf4, zdvq7x*p ige2c 5per of 24.0 W associadve ,zp4ix fcp7q25*g ted 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 a family of six owns a computer rated at rrgjy-7q s9ax-hd6 a2500 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 t2y qjs ad96-r-hrax7ghe 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 connectehvx -7 3)+tapt8va bynmppk9,d to four resistors to form a simple circuit as shown to the right.tp8+n)k m39xaypthav ,- bvp7
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 connectedy5 jgj+t;ey6f*ktyz7 ear e2( to four resistors to form a simple circuit as shown to the righ2 (y erjktye egza7t;6y+*f j5t.
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 resisty0o8h1ztnu o 3ors are connected as shown. With the switch open aszoyn3 t0h1ou8 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 ammeter, a switch and thre3cne,r,ht x*xxyfqb7y 9vhb 1 s+6(p/0c qabl e resistors are connected as shown. With the swi 6v9b(thcb7+yb*/, xpq cq1yl f xra 0xe,ns3htch 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 ammetesel5-) e bzjz-r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rl) se b--z5zejeads 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 rigey n*+vgasq mcx1g*;05 i1cw f*nuyu1ht, what is the equivalent resistance? Assume that ale 1w* fngcu uxsn a*10;5vyg+ciqym*1l wires are ideal, the battery has no internal 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 ou,)ygig/t : ho hm-p+uf the circuit shown to the right with resistancmg,y-up)oh/ i: gth+ues $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idenf mv(zbg j4b +7apg:k)tical resistors connected in a combination akjz+ mb7g bpgf)4v (: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 bel qn pz (3*a+hrpa.l8mkow shows five identical resistors connected in a combination series and parallel circuit to a voltage . zpr (3+*qaa8hnkpml 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 bulzg 94 l)g;bbqr/jtzpc/. t)lm bs are identical. Which bulb will be tb 4mzjbq pgtt/zl.)g r; /)9lche brightest?


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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 resisum+ 8 lchbnmx46:bk z5zs2 lo(tors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperesll52mm h+nux8zs:kbboz 4c6(.
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 th7g4r 1czyqeq;opgf 4s 1q 7xz2zxg97qree resistors are connected as shown. With the switch open as shown in th gxg g7q7 ;qpzsec1qx4q 91ofzryz2 47e 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, ,i)xh qj 5ijs60og: ig-he2si -qd ,xka switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsjsg,x0x5q6ioiidegisj -)2kh,- :q h 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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