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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 g(l,meo (th7 rm 6ihq0in the metal resistor connected to the qm(ml ht6(r egh,io70battery. 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_xw8i( u 4yag(l muil5kss7 73t________each resistota(lysi(3x 8wm 5guku 7l4s7ir 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 thin filament lzvpg +*ut8o)x:u yx: wire of a lightbulb causes the filament to become l:zg +uxp8uoty*):vx 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 household ligh.xvatd-+(dw(; z v4 un.rkglats are being replaced with LEDs. LED is the acronym for which one of the .; -art(. d(vdna4gu kxvwz+lfollowing 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 rfom 2 --dkekc2 d)5h4qrpgf2resistor has length 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 resistivity of the cylindrical rek rfp24 f2d-q rk2mh-)g5oed csistor?

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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. Wire Ik wc8toxguo k.po s)qw 4b.-,/ ta23fsI has twice the diametcwosk,)wsgft 4. oa82-k .xq/ 3pu obter and twice 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 x/spfc7v a4h;material but has twice the diameter and half the length of wire X. If wire X hasv;cp7h s4x a/f 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 of materic1 0dtv;0ot /iw;pps3cazvd 2al is then drawn so that it is a cylinder with new length 2L. What happens to the resistance ofowsd 2;tzdv;acv 0 i p30ptc/1 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 wanm)3v *s86e3qjq kpwu nts to make a brighter light bulb. He decides to modify the filament. How should the filament of u) vj*qe8w3n mkp63qsa lightbulb 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 cylindrical1 y lfklfc,(r1syu;1kj9cbk 0 resistors are made of the same material. The length and radius of 1;jyb1ukcsfrc0 9,(kyfl1 lkeach 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 resistance R, (7 jz:px.amekare 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.” What is the equivaj:x z aem(p.7klent 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 circik- 56 2oc g gksjwg8-uxedm90uit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltm 9ds0g5 ju 6ggmk-o28wxc-eik eter 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 th9z kg7dj6)hh0vk yp(ue right. The three bulbs 1, 2, and phg u076k (9jk yvhz)d3 - 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 circd cr tf)(thqo5 pm1mq( vm174cuit at the right. If the current in all three resistors is equal, which of the following statements must be trurvqp7(m )m1 ohfttd 41(cm cq5e?


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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 repre ehc0ue ubq:p*dqp5hqdf 6,67sents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bul56q dfh db6,0eeuqh* c7pq:upbs)
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 statempko+ x/c0 1i ncc.fz:dents is NOT true concerning the simple circuit shown where resistors R1, R0n/k:xfcd1i cco.p z+ 2 and R3 are 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 7yqu fm5 uyylto(.9b dh+-he-series to a battery. Bulb X is brighter than bulb Y. A+(9yf.lh7huym- -5e qtuyo bdssume 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 tz-5la eqpoctpo+,5 4 ihe identified resistor in 5 secondsa,pzec oiql -55p+4ot 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 tuh9iax58mni j+wh/)fi gb1mnq+( v 34tk;wao he same resistance, which woa59im+4 hqjifa oi/ wbm u18+3;vxtng(hk nw)uld 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, thnadw::egz .uan1 1 :ure current through the 6.0 Ω resistor is 1.0 : d1 r.:nuzwgua1na:eA. 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, R2, and R3 are connected in series to a bato a0swyl,o3+9,)e ctay6uri e tery. Suppose R1 carries a current of 2.0 A, R2 has a resistance oe9yorai 03,w c+use)t6ly, oaf 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, R2 andR3 are connected in parallngm6y5* q f3xuel to a battery. Suppose R1 has 2V across it,*ymg 6qxun53 f 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 wa urt5;uz3i) oftts and 120 volts. What is the maximum value of the current under these coni)f 3zt u;o5ruditions?

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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 wa8aw n(z vuhz 4n(4to5 bxqd(1ytt lightbulb designed to operate at 120 xt1((ahnbdzy44 (qz o 8wvn5u volts?

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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 ;cp4 x6 u)+w)slxmwk3cyas5 gis dissipating 36 watts of power?syc 5k+6lu3 sa4)pcwxx ;m)wg

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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 presji6 9a2(2dzqshp4hnnp qn4b/at k+j 0s clothes is marked "120 volt, 600 watt.” In normal use, thez0q2in4qph (shp da+ 64aknjn2bt9/j 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 jmywq1;m;nvg5+i) 3 b23 brsfuxevx,uj6 nd3 could NOT be produced by a circuit containing only thi; 2563d brg sv+n,un3uxfyjb1xjv ; 3w eq)mmree 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 resistors. Which of the following equivale gg,rwv7ugjrc.d m-cs/c+i00 zax99 mnt resistances C+irm z 9ma7 j0cgs -rgx.0cuwv cg/,9dANNOT be produced 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 connect q il380axs2a -o45xzfabqj9s ed together in different configurations. If all three 4 0a93z-qq bola8 2isax5f xjsresistors are used in a circuit, 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 resistorrliv dqbgq1. :f)(xq- is connected to a battery, a total power P is dissipated in the circuit. How much total (-i1 fqb)rldv x qg:q.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, hav oiz 1 cp*:q8gb6 /m2() :ibewysj*nxp-jofseing resistance R1 and R2, are connected in parallel, the equivalent regpw61qbs (-)8 yxj:biei /cnzsf: 2opjm* *oesistance of the combination 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 itei uf y:n0yp60 has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time thae:f0 i 6ypny0ut 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 tlhfo 3b.pb0-ry oe)2ihrough a 4 ohm resistor that is dissipating 36 watts of power?hi-3pb2l)yero . bo0f

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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 dra2 z s ex)f)/ z8r3g9oe8kf/rxohesqj.ws 13 amperes of current when connected to 120 voltsox s/xgke38so zrjf fh98zeq) r)e/2.. 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 100W lightbulb lbkuhh+ ,.vwg+ gg ;k92; gqadhit continuously for 1 year at a rak; w 9+ h2,.gvhda+kuhggg ;qbte 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 lightbulbgz,n;1hdbk8mlr4arh z 1 v, n9 results in a power of 24.0 W associated with the bulb. Which one of the following choices bes,1lzg;4b9hdnr 8vn z, 1arkhmt 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 c-/ o1k e,x;zk9gpji ma family 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 sa mz9g; 1,pieockk/j-x metime?

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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 c12 jj5mkl wag9ix 08eto four resistors to form a simple circuit as shown tl2gemjwx 105ji a9c8 ko 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 simp40rqwqw f(c( kle circuit as shown towkfc0w( 4q(q r 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 ideal ammeter, a switch and three resiqv2n -)zs3bo wstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.-vw o2)3s qbzn0 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 resistorml :pl *hg7t7pjxn95ws are connected as shown. With the switch openh9t:757 p wlj*gxplmn 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 three resistors are cs uxzy/ n q/g-lk-u6c)onnected as shown. With the switch open as shown in the diagram the ammeter rea /uqzl/-x y ungkcs-)6ds 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 u- as ,t(+p jtgm-3hfnright, what is the equivalent resistance? Ass-jsm-p +ftn(tu 3, gahume that all 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 of the circuit shown to the 0yh xixoizr( ri,425tright with resistance zii,4i02o(xrhy xt5 rs $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identict9r .qnn1-znz :a5ts l1a5jx xal resistors connected in a combination series and parallel circuit to a vo5 zn1j-1x9qxatals5 : nn .rztltage 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 belg ,kfd:zquav(p;9)9viz k9kj ow shows five identical resistors connected in a combination series and parallel circuit to a voltage souka;g9z9:i jpqz )k9,vfv( udk rce.
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 evdl5yw a;e+k*z wvo6 5qgo // of the bulbs are identical. Which bulb will be the briglv yzoow+ /*egeak5 5v6d q/w;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 battery, an ideal ammeterxk7i p q17uo5xh.0 ozp, a switch and three resistors are connected as shown. With the switch open as shown in thehxpqipz k5 7o0u1x .o7 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+-p ro34rltm ce connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.r ro4lm3-p ct+
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 cony qy 79v (b(da5bn8cuonected as shown. With the 8u((9 b y7vybq5danocswitch 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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