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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 metal resist(a-5 qt u8yw-rvwqz( g :kb;gmor connected to the battery. Which one of the following choices best describes the direction of electron flow through the mqawwrz;5 y(uv b8 -:gg-tqk( 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, thzhm5,x9v17tny9qbd mo9 e5tg2umu8qe_________each resistor is t9 xu,qv98qzg 2ht 1me75 9bnu5tmdmyohe 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 tlh/ae bcjuss6f7+,8rhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happef786bse,cs r h+ula/jns 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 t4 b,obvmr cffp+ +l 9-(i r/:jtnycve/he acronym for which one of the following c-cyvl4jrf (te/9 +f, rb:io mpcn+/ vbhoices?

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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 resisu)dehpjr5 +qr +jf hvdz lg;;/f 1-h3ptor 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 tha- 5hpur++ h;pdhf d f3rvgl/;q)je jz1t 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 aren 0ev).rcqvr0 made of the same material. Wire II has twice the diav0r c0qv)ne. rmeter 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 material but has twice thd3vca/s:-dulsv4d 06 vsv* ire diameter and half the length of wire X. If wire X has a resistance of R thesar :i3u d6/lv0dv cs-4dvvs*n 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 rb7/2/ko thaneqeazb. 92 +kpnk 6(yrp esistor 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 mater(an p.qkby62/7 h/ezrtkbk2o9 epa+ nial 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 wantsce cr(6.fips* to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltagpic. f(ec r*6se?


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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 resistor9jpt :opu .1qas are made of the same material. The length and radius of et :u.ao9qp j1pach 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 resistan1gc49* c unon:ne7+xtyfhqq3nh aa9 7ce R, are connected to a battery in the following way: “Two resistors are connn 73nuh+o4nh:a*accgtxf97 q 1ey n9q ected 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 hasf lu dxg8w9t hfap6l 3+;lt8)e internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. h 9+8ea3l fwpd; 8ft 6ulltxg)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. The three bulbs i s5ex: p1j gxx-zu5g,1, 2, and 3 - represent pz 51jg g:5suxx,e-xied 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. If the currd vgks1gkekk8 9 opejcd(8 ))t;y:4 foent in all three resistors is equa)kfg8ddopy) jovgs 8t;k4 1 9eekkc:(l, 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 represents a simple electric circuit composed om(g yujf8 *vb-cq)8krf 5 identical light bulbs and 2 flashlight cells. Which bulb )jkm-*v b(c8qfygu 8 r(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 true concerning therh: :nj ts;ej2 simple circuit shown where resistors R1, R2 and R3 are haerj; jt s2:h:nve 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 seriesd 3ruc8:xjj;+ npv75um(w hni to a battery. Bulb X is brighter than bulb Y. Assumc7wxrd5u8;m3 + p h :vnjn(ujie 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 i;vd4x yct ay-m,o o;:through the identified resistor in 5 seconds once the circuit was close;o: ic;vx tdaym 4y-o,d?


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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 folttdn4- dwi p g)d-a/n;lowing simple circuit have the same resistance, which would dissipate the greatest powtigt-/)dd dn 4-p nw;aer?


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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 cx w(ik1wi)osx4mo 0l3i2h mv86zxi ;rircuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the powerovliw8r 0hm )w ;x sx(6zmxii1234kio 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, annd k4qw5om52n d 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. What is the voltao 5524mnqd wnkge 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, R2v 8q6.ggyrroj* n 2:np andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6y q*nrnp g:gr6jo2v .8 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 i7w/cjf5:ealrg4 -zfh(ldq dqf.:s 1rs rated 1200 watts and 120 volts. What is the maximum value of the currzrq1f5cdfl7sl(4q.h/wdger : j f: a-ent 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 resista8ugpgnt; 98o;n.c3 +1 rftt7jkunntjnce of a 60 watt lightbulb designed to operate at 120 volts?3n8o 8n;ptn1 juctt gg+t kr9u;fn7.j

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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 dissipai:kg rd*p mp4t4/m3 ll3g kyq*ting 36 watts of power* gqy/prt m4kp43k*l :3 dgmli?

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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 prew 9g5qdnt;v voxc ;1b;ss clothes is marked "120 volt, 600 watt.” In normal use, the current in itbgct x;vo dq;vnw5 ;91 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 could NOT be produced by a circuj w t3xu0tm/2yx)nvi5d ;tk*jit containing ox k*yvtd5tj w j3m2i0 ;x)u/ntnly 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 q0g4* u(hlq .8r i-kawfhx-ssthree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produce(q*kuxiqrshh. 4-0al8 gs w- fd 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 connected together.s+ k/kayim liv/ 3krew 0rs,4-hsl:hqof +l* in different configuraal /kk.rsmsi-q+ohehil:*v4+ yrk l/3f,w0 stions. If all three resistors 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 resistoq)bwfs8 ,w0q1 c5xodp r is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a cir1dwc0q8ob) xsf,5 pwqcuit 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, are connected i: pr 9v44 se2gqtcxxqv*5i2van parallel, the equivalent resistance of the combinati pax42 e:ivxs* 2vvcr4g tq9q5on 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 s opa9 yagnxyp;)4 h+7duch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water gy4pdy7on9aa;h) + xpfrom $15^{\circ}C$ 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 tr xdq;au3 mpa 7h9v/lyv x1d;6hrough a 4 ohm resistor that is dissipating 36 watts of powerdar 3 61pdm v/;avy9hqx; 7xul?

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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 3zxn3xt0l . uo1 yrl/13jtxckwhen connected to 120 volts. If the price of ej313kc0l zl/n.xx txyuro1t3lectricity 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 ko ; al+qphwn0f)+b -ezeep a 100W lightbulb lit continuously foh a;p0 +l+)onw-qefbz r 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 througt2l6 ex;jszd u::dg5ftj8r i/h a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistgfre lzjd/ t sx:;8j62 it:ud5ance 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 uu xko8c4.f2usj(gs 5 a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into af8 2ku45u .ucojs (sgx 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 to f bhjx 9 an0sb9lhs .:,ac/k0oform a simple circuit as s js b0o0klnaf 99hc,sx.b:/ah hown 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 circuit;b y;udf(o6bfg9 0uhz z wz5b9 as shown to the righoz 9(6bf0 ;;d hfzubbzuy5gw9t.
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 resistors are 2 wqh:b)k gooo -n0(xgjh 9)ygconnected as shown. With the swk ) 9-bo2(ggo0yohqwx g:h)nj itch 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 three resistor 7c:urg uz(4vss are connected as shown. With the switch ou47g vczus:(rpen 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 conn ,nuyot +t:cri :(d0ria-x c- ivb+-7 hy2pfwnected as shown. With the switch open as sho( ,x7 nvp+iia- : +utoh2ncy- -tdyfwrc0b:ri wn 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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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 x*x.0xcy/ kglis the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identi ky x./xxl0cg*cal 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 resistancemjqwvm ipm+ 2+hzr48: of the circuit shown to the right with resizvmh +mp 48r:wm qj2+istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fiverw,es4ioh ri 18+ge/ i identical resistors connected in a combination series and parall/e,ewor gis4+i1i8r hel 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 s)tht nh8fi1n;x n4i( s(rjl+ in a combinati( j)st81n lhnnrxhsf ;i t4i+(on series and parallel circuit 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. Whichj.2eq d;fze0b u3x lj3 bulb will be the 2ex;l3 f3ze d0 juj.qbbrightest?


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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 tx 3 b2qty4+wmswitch and three resistors are connected wtt+yxqm23 4bas shown. With 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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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 e,u,- xa/ysu8fdxuc5zhp20 w three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperec,d s-u8 f,5x2ax w/uzuhp0yes.
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 resiai uamvf/g iv1co8co(5q);1 dstors are connected as shown. With the switc1agvd;u of1q 5ic()v i8am/coh 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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    总分:50分 及格:30分 时间:不限时
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