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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 elebylt. 4). (nsvm sh0fgctric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the nm0l tv)g. (bys f.s4hdirection 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_________eac7(2rjaq6/uuytg .) myj)ndo, t n9kxw h resistor i( 29jxd k )utw7y.t/gu) oma6rnyjqn,s 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 lii/hnd1tt x++a ghtbulb causes the filament to become white hot, while the largeh+tnat1/+id xr 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 lights are beinbf9am6bk qln w:.dw deujm.6z ,iv:zj:), n;vg replaced with LEDs. LED is the acronym for which one of the following choicesw.:6wmjbd d l;i:bz k6n vqnma,uj z)ve 9.f,:?

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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 e ktcwp**z3ir7bk6:rlength 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 thek b3cp*6zi:r *tkr7ew 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 materi;2 ims+t: qn )9b67uvkc)dy3bka hwnl al. Wire II has twice the diameter and twice the length of I. If I k s7 ;aw6q9bk)t)vnyc2udm:hil+b 3 nhas 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 theq,5p x40i *nqdivreny4 )2 *vv4lbkbj same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then 4djv*b qvrxkq, lv2 n0*bnei)pi44y5 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 -wj8sbx)- v(lre vit9radius r. This piece of material is then d-x)-iverw ( stbvj8l 9rawn so that it is a cylinder with new length 2L. What happens to the resistance 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 want zf)5ln xyv3deds -;ax.wc,d-s to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order t .y3dvd5caz)xd xn;, f-lse -wo 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 cylindricaxok 3rqq j27 vnb-+x)fl resistors are made of the same material. The length and radius of each resistor is:n-x rfqb2vj+ k 3qx)o7
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, eacnlk0 ptmk ,0f2h of resistance R, are connected to a battery in the following waykfp0l n,20kt m: “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 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 resp6/d*e vbm;h k:zts/zvye/ g+ istance 10.0 kW and the ammeter has internal resistance 25.0 ohm:/ +k zps*mved vztegh ;y//6b. 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. Th7- -i d -pdhzq8q)i-i te6v7m7fwuluae three bulbs 1, 2, and 3 - represented qp8m- uz7v-i - -uhtwidlfd)7i67qaeas 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 electr1ha kv*5q))mqtivk 2 qical circuit at the right. If the current in all three resistors is equal, which of thea q5k1v ti m2)kqqv)*h 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 represent./m i cl5 d ,grtvchbe(mn4t/-s a simple electric circuit composed of 5 identi 5m, mhe v-b/n./cldcgi(t4tr cal 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 following statements j3:u2i bsln -nl ny7l0is NOT true concerning the simple circuit shown where resiston:yijn0l 23 bulsn l7-rs R1, R2 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 connectezdq n/hq8 j(r--/ w1lc8yqvc- b4mtpw d 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 thenhpctw8z/-qv c1ylq-/wjdb m4( -r8q 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 identified resistor in c*19 o.g tp 4xeupw9xsq7 17nz ,sqisg*zp 9lr 5 seconds oncxg99 q7l cp.*1 s qzpt4x1o zuisr*s7, 9gewpne 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 resistor zr (e m+juzyoamd3a0k dvu(2/.-3vbi s in the following simple circuit have the same resistance, which would dissi+/2i3b(ueyav ( u dzzmkd3.o ajm rv-0pate 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 cidee/2pq n zm**si m6/xrcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the poweei*pmm/sxde nz q/6*2r 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 battery. Su t sdfrq::6k fg gm q+*1m,y3xc+sv)kgppose R1 carries+*c fgx1qkr,v3q6mf ::kd ms g+)sgt y 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 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 sn8xlp n0, na.connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 di, lp8n0xsn n.assipates 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 maximumg l0t2mw8 pq ts, fqf3tu-jm5wxgu:34 va4 wx-qjm 2u,ml gf8u3tps5t 0:3gq fwtlue 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 lightr /50s mbwaq m;ymp47 3ebg(xtiki:4tbulb designed to operate at 120 volte45art: ;xq/tsg4bkw0ii mp m (m7yb3s?

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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 waeh* cg)7cc.vatts of powecva*g. )7cech r?

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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 xar4dv -hmv9- volt, 600 watt.” In norxar 9mvvd-- 4hmal 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 folcch d0) nzy+g5lowing resistances could NOT be produced by a circuit con+dnc0zh )5cygtaining only 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 rbnkxtbxy3 -bchb) t*): t l+*.xgjq hf e2i78eesistors. Which of the following equivalent resistances CANNOT be produced using bb:bx7 ixq-+h. g2l) t3b8*y*etfh ck )xnjetall 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 ) ily5s( g*sx0(k * wjl :l3am6jrzclzbe connected together in different configurations. If all three resistors are used in)60w g5(j *zszl *ak x3yil (cmlsrl:j 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 resistor is connected to a battery, a total pv a j z ry:meke3id9i43xx;x).ower 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 resist4xiazd;j .9 x e:3ye3ix)vrk mance 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 rt( 2nw4 sllrn6: awls1 j(xvq;esistance R1 and R2, are connected in parallel, the equivalent resist (law2s:j(v 6n41;lnwr xslqtance 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 it has a:g/xq:mqu 2 rl;b+xu0.p ijkwt k48ya resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it wo2.x glmt;u:qw 4kir:x0+ a/kpb 8qyj uuld 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 fllzxla:t j0hd g: y43y,ows through a 4 ohm resistor that is dissipating 36 watts of :yl z:0l3jyd4hx ,atgpower?

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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 amperec h4 : c,-/nv:deifjnds of current when connected to 120 volts. If the pricec: n4 d cvdfnijhe-,:/ 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 100W1zxv 8lbc(2ho(k e.+rvb 8gko lightbulb lit continuousk8o.1b o 2(bgv+lkcze(8xrvh ly for 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 u q 33+hh ciroa+)xu7uof 24.0 W associated with the bulb. Which one of the following choices bes73u rx qc+uia+h)h3uo t 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 500 wadj4 +t;qimc gwtcg. bz/.w, q/tts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maxqib/q.;wct /4+.tzmdc ,j gwgimum 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 cbg qnw:4 .sj4ca s)-dronnected to four resistors to form a simple circuit asd.: )j4 was4r-bn gscq shown 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 simple circ f9pdqdi ,cah p56jsz5; d5ds1uit 5dpdaj6pd5 1ss9ifcdq;h ,z5as shown 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 ideal zf3m-rp01urx ammeter, a switch and three resistors are connected as shown. fxrzr -13u0mpWith 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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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 thym eklk4 nkw(7q8l3f) k)cup ;ree resistors are connected as shown. With the switch opec4k(k7)fnm wk ; 3qe)klyu8pl n 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 idealx j.41nnl.u lq ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagraux1nq . j.nl4lm 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 equivalent resistancecs2;qkhu 418ypz r b2s? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resista 4zcsku;b2 y8p2 1rshqnce 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 equivalenthss. uyjy4;sary)5q had d,-;uyau+. resistance of the circuit shown to the right with resistance. duhhyu; ,syd;ary- .qs5 u4 )yas+jas $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connected ocnyw *a-h*ve:: dl 4min a combination series and parallel circuit nwhm-d:* yo 4:l*avceto 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 belowj zv:t4i ke,cx2-.8 htadx4gfo,t ct/ shows five identical resistors connected in a combination series and parallel circui4ke,4x- o id2hf8gvttt za.tjx,:/c c t 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 the bulbs are identical. Wh922(qgs akmx cich bulb will be the brightest? gkm(9cq2 s 2xa


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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 swin.9* belpix 9uo: (nqwtch and three resistors are connected as shown. With the switch open as shown i9e l9qn*(uon. :b xipwn 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 vr65h da1j-xvresistors are connected as shown. With the switch open as shown in the diagram thexv j5 6-hrd1av 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 ar(dwl + dnck95te connected as shown. With the stlc59d wnk+(d witch 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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