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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 metau k1)c0cvwt q.l resistor connc1qtkwv)0uc. ected 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 resistowo9t( v-b 8qxx4l:)b vzlu p6xrs are connected in parallel, the_________each resistor is the sameqbb lx)8xw-9 v4o6vz l(tu:p x.

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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 tlx wi 5)yt/zten; /f2uhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb rem u/;yexn5wfi2) lzt /tain 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 lightss7bd j6 ,e(eym are being replaced with LEDs. LED is the acronym for which one of the following choicesdjms 6(e7bye, ?

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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-sect,gk+xw17(t1 fer3 crjn:j(j(o upooszzo72 xional 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 resi ,1n(t1ofoo2j j(pc(7gz uxjzsrx7w k:roe3+stivity 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 6acus(k:: caw.0p j :eht zax*the same material. Wire II has twice the diameter and twice the length of I. t0(e:kazxa:j c:s cp w*au.6h 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 twice the di7wl mc 0zl,c1iameter and half the length of wire X. If wire X has a resistance of R then wire Y would hav1 cmczi, 7l0lwe 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 pie e9r(tkji/ hd.ce of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance9j(t/ke .i hdr 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 ar ,;2) ma p h.vk5 jbbric*)ks2ztfjsy1se;;v brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the1jcts 5vp;absjmzsr 2);e,.*if b yr k2 hv;)k 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.ploqxi*a29c 3vm 7cg same material. The length and radius of each resql g.pi c*xv9co3a7 m2istor 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, are connected to a bap82x) :ghduw,w * 0t xu8h pimmthg)o598ehp vttery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a tu0 m8dte:)hpvx*h8ph,xg gwuip5 )8w2m 9o h 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 resn+ w tgx8q1/hwistance 10.0 kW and the ammeter has internal re/+1twwgq h 8xnsistance 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 compound circuit showcnwaha3sd)ei67p 89 f, kggd6n to the right. The three bulbs 1, 2, and 3 - represented as reskgaigd wc36 d,8s7nf69 )hap eistors 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 rirncgkm*b 0p-:z 3j at6ght. If the current in all three resistors is equal, which of the following stnb:cgz r36tpmk -a0* jatements 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 represe0(ujpwujr*s (f.g)b o17r6 y g q)rzjjnts a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (ob zq.gr)r)o u*1ypw s 60jjr(7fu(jgjr 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 true conc:jk f3 e*w0 uy /mk/pc0,yc+qsu:bbci erning the simple circuit shown where resistors R1, R2 and R3 are have equal resistkek ,0juuc+ b yipyfsq /c/cw3 *0:m:bances?


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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 connecr2ny5q2 xoqglwl;,ssg 5v 8 4b+xkbj2ted in series to 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 followingbyx8xll g+5qj5;s onwv2422g,bkq sr 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 coulomb g 5xo8, ff 7js3gadi blw*h8oobhzd6 pc:7t4+s will pass through the identified resistor in 5 seconds once the circuit 6lzso5: fbxfd4i ahw3ot8p* og7,+7j 8cgdhbwas 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 follohd7 (ch 7i9qtlwing simple circuit have the same resistance, wh7lhht97c (id qich 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 -q;-y (azxw7d;.v 7+rf)xgy6 u2yck vzmuvqt circuit diagram, the current through the 6.0 Ω resistor is z v vkm tuy-v2u.x w(dax;g7y-qfz;q)ryc6+7 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,k mp9tqz1wmvxi9 eq.;q *g.v(a- fou3 R2, 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 dissipates 6.0 W of power.fo k*9ae.gxvmqv;i qwm zqt(3p9-1.u 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 arajrx krx6: +pvzr3c.x v1*sw,k(q o (ge connected in parallel to a battery. Suppose R1 has 2V across it, R2 = sqvx r,6xxkgj.(+ k : r* wov(arc3p1z4Ω, 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 volts. Wha3yje-vho8 w (it is the maximum iw38(vhej oy -value 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 resistancek .qe tl2kunew b6 w,d+szn67xi*9jn3 of a 60 watt lightbulb designed to operate at 120 voltsn .6jt6le *be9 7 ,3idnwkq+xwuzkn2s?

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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 f vtc e*h5f0-kllows through a 4 ohm resistor that is dissipating 36 watts of powkte0*f5 c l-vher?

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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.” I;htvg 9qh2g.qnh .ikz9m8qw4n normal use, the curre;iv9wzqg h. h8t2 4hgqq km9.nnt 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 resiszial : 77cwz(;yfrv /qtances could NOT be produced by a circuit containing only three identical 6Ω resistors?77 lfai;wrq/vy(:zc z

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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 foll 94se9 xn(meck70ebh oowing equivalent resistances CANNOT be produced using all three resistors?(enec7 km99boxse4h 0

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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 together in di zbp/+v* 5tpuyfferent configurations. If all three resistors are used in a cir/ by*zu5pt+vp cuit, how many different 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 i:bhl/n fsfid9ehi 2 g )s56e.gs 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 se)fsi :sfhn eeg ih965ld/2bg.ries 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 Ry1(b oy7mugb2(/5 :yoh (vfw j+p/ sdhdx( exh1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the followin+ xbj (b7(dg uh/ho/( seph: m1vy(yxy2fo5d wg 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 whej ;0m/mekn 5frr-0-m 4 mylg;qhph2 nyn operating at 120 volts. What4nhh/gqkmnjm 5-;rl;0-y e rmp0fy2m 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 a 4 ohm resistor d8k n1*2cvlmd that is dissipating 36 watvkn*ddm c1 82lts 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 amper/t- 7qz zeium/+ywe4kes of current when connected to 120 volts. If the price of electricit- m y7eqzz+ku/we/4ity 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 contin ti qgi;(02mcqpvoi-nlrda1(vb : a*8uously fo mq 28gvactq(-di0:*l1i ;in( p arvbor 1 year 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 through a lightbulb results in a power oov2: j lu/2cisq .-rqaf 24.0 W associated with the bulb. Which one of the following choices best represents ti/ 2o.rcaj -q:vlq us2he 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 fas 1* ii*60.fdpc, o thsbpwwg8mily 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 6 obc*ipp 8wif d,ss0g *1t.whthe 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 tw6,r-x2:zhokz 7* o ag brk4aeo form a simple circuit as shown to the r r *o-2 aah7z:rkzwxo,6kb4g eight.
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 simple circuie7r i:b(i q74fxer4vmt as shown7m(xrr i7ve4q4 ebf:i to the 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 ideal1uw-:hf2epw .2j rsuh ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the:pw hu .ue122jf-wsr h 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 three resistors y*w3pb s*qu9whh8g f6are connected as show g yhpfwh6q9*8b3sw *un. With the switch 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 ;k r/ 3w 5voa9b+nxdththree resistors are connected as shown. With the switch open as shown in btv+ra /9d;n3w x5ohk 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 t8qf/xb;re tb*.b7 tjto the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have id.*etjxf ;btb bq8t/r 7entical 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 t cv s1wv: fa.3xym9isg w/7dcla ,g01zo the right with resistance xf1:v 1i/ s,cy93v0macawdg w7lzgs. s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 u8yq nbg.g ed./xzf . * .0ilo7l(tfjyfive identical resistors connected in a combination series and parallel circuit to a voltage sou0l7 n8(ldx.yi/fyg gte ...fo*bq juzrce.
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 identicanw/v1s,(05ie l huhlil resistors connected in a combination series and parallel circuit to a vol(0we,l hi/ h1 usiv5nltage 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 d3wiu p)/f oh+qiagram, all of the bulbs are identical. Which bulb will be the brightest3f)h q+iuw /po?


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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 amm2xa/ru 63k h7xxc)pjv eter, a switch and three resistors are connected as shown. With the switch open as6 /xuxkp)vcxjh73r a 2 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 switcx q4y5bw ((48z.rata5sgj riah and three resistors are connected as swz 8.aa sy 4r5gj5xtqi4r((bahown. With the switch 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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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 switchya7onc+e w-b9a i-y /x and three resistors are connected as shown. With the switch open ayb9 aax-oy e 7c+iwn-/s 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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