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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 electr k7c2gka4q9 3gityy) ric current exists in the metal resistor connected to the battery. Which one of the following choices best descr7gy 4)y qat2 rkc39gkiibes 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 fourjhpqqt;-7+ki0g jks.; ntcr3:a oxp ; resistors are connected in parallel, the_________each resist:ih73a q; jtsr 0+n;txkqgp -cj k.o;por 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 thinb x( n 56w. l0itp1+yq:oanwga filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lwn5t +0ao(qg :lapy w1.nbix6ightbulb 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 household lights are being replaced wptdt0v q.pj4:bjorz v2 g)2e9:maq2t ith LEDs. LED is the acronym for which one of the following2 o4gtj dbvp.zvq29::0 qattrm )pej2 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 lengths8kpj3d d2p8d yz1l *, cin0-l7ptezn L and cross-sectional 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 resistivity to the old nd8sczl23k1l-pd iep0 7 8zy,t* pdnjresistivity 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 arf+ zg0j l,6 jof:7v+1dfgxftz e made of the same material. Wire II has twice the diameter and twice the length of I. If I l7g+fjjxf f6 ovdz0z1:+,f gt 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 bwatwh*-w jf:i uf 1,9ol1mw .rut has twice the diameter and half the length of wire X. If wire X has a resistance of fmw *rw wuf:- haj.,1 lwo91itR 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 lengthjw8x,3vf;-c 6vv atfzlc p3 b6 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 of this procel6a3x6v,fvz-w;38 bfvctp cjss?

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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 tzu9 y i ia+d;-qn+,gcoo modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prodq+ g anciyiz+u- od9;,uce 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 the1w49fv gy+x g0tbg 0 r0ktnohv:-8 hge same material. The length and radius of eachvt-efh10tn 9k8xhg 4gwgo0 0br+y:gv 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 resf*(h tmt1qn 3jistance 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 to a fourth resistor.” Whaf(mqh1 tjn *t3t 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 ac-dfalt3 8 e6wa3kxto7companying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25w3a7 xt o3-alfdtk6 e8.0 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 compoz8o qv0ywui /hr3t e t(.mqny e9+xu+1und circuit shown to the right. The three bulbs 1, 2, and e0yr++ ytm z1nhu9q (q ./o3tv8eiwxu3 - represented 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. *,fksoenpp i1g7t3 2b If the current in all three resistors is equal, which of the followin 3nkpo 7ib,2ef g1s*ptg 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 simplc1knw7 pvwa:mi80l9 . l fz5gpe electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) 8 5il:kfw.07 9nppwgzl acm1v
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 concerning the simple ci82 xs z/vb;2 g/tpmjpprcuit shown where resistors R1, R2 and R3 are have equal resistances?zp/ p/v8s ;mj2 tgx2pb


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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; yk6 +soeur0qt k3se43b iip60e)h ll)echm 6 andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements ares46ece)03yli66q3e +o 0i hhpt;eu sm)bl rkk 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 identi2a,pn6iz z;5v m:hll jfied resistor in 5 seconds once the circuit waj6 :5a2l ,pi;nzmvhzl s 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 hs mwc7n ,o y7 oy5.w9 u lv)p4lpp5bzh)a77fxmave the same res7 o,)w bv 5y7s9 u) lmx5fznpyc.pm774lhowa pistance, which 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 circuit diagram, the current through the 6kk c eayvbq+e7-a3(( uhc/j j,.0 Ω resistor is 1.0 A. What is the power supply ue qc3hb k/aa ,v-(j7j (y+cekvoltage 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 R3 are connvaxy28*bqr ar yno6*3ected 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 voltx2*6*rao8 ar ny bqy3vage 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 are 9vaxu-g 5erklhe714 fconnected in parallel to a battery. Suppose R1 has 2V across it, R2 =4- hre79u v fkgeaxl51 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 volts. What is the madbehi r6-wybs84m6;jr5d n 3wximum value of the current und w6bs;d -ydj45rmrne8bh 6wi 3er 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 lightblv44e2/pi( 3qrvu1hdycf vu3 ulb designed to operate at 120 v/3 ciu q4 pfrv3eh4du1vvl2 (yolts?

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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 dis+wb ) st4mo;tpg lhz(+sipating 36 wattstolzwh;(+p)4t mg s b+ 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 to press clothes is marked "120 volt, 600 watt.kl0fzui904a k)r:s.toz znu m6 fk +(r” In normal use, the current in it isif kot ua 6mzrufz:(9kl ).040nzr+ks

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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 /+tsb, gz/hpg produced by a circuit containing , s+/pt/hzgbgonly 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 resistorspe rax+v wld/g7-ujs5*md 84q. Which of the following equivalent resistances CANNOT be produced using all tl*4g85uqds/wx e+vjpd 7a rm- hree 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 val,(fr y un:+l-8qyf vstues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resn8t,lsyfvq(:r uf+ - yistance 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 bmd d61 m)kfy6nattery, 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 the internal resistandmdkm1y) n f66ce 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, are c8 l .6 r;k)pdp4whnraconnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is .8narw;6l4d h)ppkr c 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 x(w(6x+t y5xuz4zvgb of 12Ω when operating at 120 volts. What is the minimyxx+xt(( gbv zz65 4wuum 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 c5wdr) d v0/akug(;xza 4 ohm resistor that is dissipating 36 watts ofzvcgduw adx;5/r( 0)k 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 120 volt/25v *adiuuwjh2 ;infs. If the price of electri nai/ h*25uujf dviw;2city 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 :yyvb: e rys7rke2mul r ):i+4how much would it cost to keep a 100W lightbulb lit continuously for 1 ve)7:: y2srlbrk uy:+4yirm e 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;ux to * pg u74c;gq/znefyj-/ a lightbulb results in a power of 24.0 W associated with the bulb. Whic /og*t /qp7 nxg-e 4jfzc;uyu;h 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 a oup)7d+ad- uzt 500 watts in a 120 V circuit. If all computers are plugged in7- zpu) +aouddto 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 is connected to four resistors es;4q9nk et dqf 1j,*ito form a simple circuit as sh, if e;tsqdn 94ej1k*qown 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 i7s) hu 5; kw:yu)v+ klju5btzsimple circuit as shown to the riuukklu5 ;5viybw:h j s+7 ))tzght.
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 resist:jv ggt;ejx3l m4q(s* ors are connected as shown. With the switch open a4:ls (j3mq;g xt j*gevs 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, vn u e3p2h r6r*6q2( 6xsegckuan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amkvp(u2q r eusc 6 h*3e2xg6n6rmeter 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 th4z/ ;lfkfic+itp3yw3ree resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe zi4l+3/tk3i; fp wfcyres.
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 the3, sronxgl5(a equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, a onr5x gsla(,3nd 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 of the circuit shown to b 7 rsawx,53p:7gvk sdthe right with resistaprxawks sd3b:5v7 ,7gnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 k+n7ocve-(gaw)d fv 4shows five identical resistors connected in a combination series ak7ev vcd4 w+o(gfa-) nnd 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 resistors connected in a v of+3 p.a /4xs x 5a2knfpmzo0*xow,xcombination series and parallel circuit to a voltage sourws4n2 p zxf+50fom v a3,xaop/k.ox x*ce.
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 bulbs are identical738 o bpqwwlin29vk-x. Which bulb will be the brigvxiqnp3o b2l 897wwk-htest?


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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 batte0:sp.mhg ay719 pd19rjterd nry, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram t7je1yt m:g 0spah9r9 1dp .dnrhe 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 resisto;rhmt,0 c(;vb ih0h8eu w rw*ors are connected as shown. With the switch open as shown in the o wrht;ec80hhv *w b( i0,u;rmdiagram 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 switch and three resistors are cxkq.u() ckxhzl3) 6 h1-ez xua:sok( uonnected as shown. With the switch open as shown in -:k z1uo zh)6(saxe3) l.(xuxckk hq uthe diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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