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习题练习:.Resistor.

 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 cu0m5: goe5.lg kvj 2nonrrent exists in the metal resistor connected to the no el2ng:.vmoj55 kg0battery. 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 pv0c1h :z*tjw garallel, the_________each resisto*vjg: wtz 0h1cr 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 tgg5 iabb1d4g1 /f mv;yhin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happegvbadb1g51m/ ;f g4 yins 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 aref+lai9 zsc(t.l 1px8shtb 7p( being replaced with LEDs. LED is the acronym for which 1c(98+zslf txl. t(pi bas7hpone of the following 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 grap -q*pmkk6; dirhite resistor 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 resistivitk;kdpq6 i m-*ry 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 the same material. Wire II hasye cr6,o 7n5cfn;v3rzi6 g4f w twice the diameter and twice the lengthco nr3fcy6g45;,wivf 6n7ze r 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 the diameter w fqe5m8:g;wqyv vc74 and half the length of wire X. If wire X has a resistance of R then wire Y would have a ve;q4mvgfy c8q :75ww 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. :b;),0 ma8khct a7( fgcn 2 pw /dgrqo*f(xyuiThis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaus,n pihto7u)awc;b(*( ca2 : fqmkgf0xrg yd/8e 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 a brighter light bulb. He decides th67pv*q . swaqo modify the filament. How should the filament of a lightbulb be modified i.p6q7vw aq* shn 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 cylindrical resistors are made of the same materialjx. b;*luge81rjb okvmz3x p6b,7ki 7. The length and radius of each res1igo, ;786e7x kk*lx3v zj.bmup b rjbistor 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 bj54bmyvhubj .ac0p vmf; 9;.to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a thir v hf9cbpbvay.; 4mb ;5u0.mjjd 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 resista:p5y zs.oc/-t3rk x g7/ q ygekx0r7tunce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. T:tu7tky 0 35z/7ec xyr-gsg.qp / kxorhe 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 t:627b5v v hwe 6xoq bf:qrhrl4o the right. The three bulbs 1, 2, and 3 - represented as resistors in 2vv:r6qhl r47wf6hq b o xeb:5the 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 electrb(5w6f;ldub sical circuit at the right. If the current in all three resistors islu ;fbdbsw5 (6 equal, 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 el vx ysk3v*68ncectric circuit composed of 5 iden3ks* c6ny 8xvvtical 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 4vq1rk3 i.o d77kqyay statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resist k r3qyk774a1iy.qvod ances?


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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 ar1dyg:jxphv7lzy0 x; : 8 zxk0le connected 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 following choices best representsyll0zyx px k7g1vh0d;x:jz : 8 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 r.v5tjwl7,2s;iwll x) ( v aqjsesistor in 5 seconds once the casj2xwl) ( ; 5jil.t 7vsw,lqvircuit 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 t 2.np2dej8pj y0drj (ehe resistors in the following simple circuit have the same resistancep d0nepj8j jyer2 (.2d, 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 (2zf06 xdf09pdxpd5 o 9rc adc6.0 Ω resistor is 1.0 A. What is the power supply voltap 9zfx(0 xpdc2590dfc 6roda dge 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,u d95dspx j 44wa4w.pc and R3 are connected in series to a battery. Suppose R1 carries a current .c wddp 4su4wj4x9p 5aof 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 connected in parallel t;st9e s)*r7 r*fakfyzb2o2po o a battobes)9s 2ko7a**yr fpztfr; 2ery. Suppose R1 has 2V across it, 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 wagvmzwri :tl. +p3zf0 0tts and 120 volts. What is the maximum value of the current under these con0l:g+v i 3rt.zzpmw0 fditions?

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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 lightbulb designed to operatehm4 1 -v+ay qwnsedz71f8yj s7 at 120 volts?4 ew7a-j s+s81yd1yhz fn7mqv

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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 oygoaoc:3xjh;7+: bfdissipating 36 watts of power?:7+oh:o;3a jocfxgb y

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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 wakmqg1 r1c* n:je w, u,t6ja;tatt.” In normal use, the currk ,1 ;jtqama1wrc*:jg,uetn 6ent 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 couldq4 euuu5l2 7vc NOT be produced by a circuit containing on2v7qeu 5 luuc4ly 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 resistors.3mb(0r y r8ujr Which of the following equivalent resistances CANNOT be p8yr 0ubmr r(3jroduced 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 resisto+f/ payjk5a(g rs of different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be y/p(+gjafa k5 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 b az i*carwn:d,7l+a1). voju**axmpzattery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors ap. a*om*xlav+d wc :j7a*i z,zr)ua 1nre 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 con21fvo fuip,c op1 wy 3ix/+ln,nected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following sta,pu f/nxwpc21+i 1,fiyvolo3tements 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 resis:qvyt-;2dall2hbrdn5 , rj o/tance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would t:ja/ l2r t nyqdd obr5h;v2,l-ake 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 4j;cggqdq16yx u b i)7r,w9 7ed ohm resistor that is dissipating 36 watts of powdxbg)g,y;w crujq 776e diq91er?

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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 1 rcvu-g of2;p63 amperes of current when connected to 120 volts. If the price o; rf6uo g-pc2vf 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 hoq*s izvm;ydn41 da(e: w much would it cost to keep a 100W lightbulb lit continuously f4;zds* iqn md:v e(a1yor 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.*hqx jnvs ne;jl;;)m200 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance )j xq*mh;n;vj2n; elsof 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 compg( bdsx 93 5b6)*3mogo 5ctiryduas +9w9tjlzuter 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 computewbxygt9l9 9gi ddz s*c(r56s+jta3bm3u)oo5 rs 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 form a simg;sq;zx *-fv:n2+wb slu 7cyiple circuit as shown to the r xcn-g7f i;us+vz:ql *w2sby; ight.
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 batt8y- ikion2 r3oery is connected to four resistors to form a simple circuit as shown to the right.y2ik rno8- 3io
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 ammeter5cx;cn .o-zyng5 t;ur, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter r r5-z. g;tyc n;u5oncxeads 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 * jtchb 7zz+g7and three resistors are connected as shown. With the switch open as shown zh + tzjbg7c*7in 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 5axjg0dt9 w j4connected as shown. With the switch open as shown in the diagra daj9j4t5wxg0 m 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 resistanc /du;c4.kq 1w:p.d hbeaam.im e? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R. .iu;c4e am.: wdqa .dm/1bhk p


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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 show,ij5jhj*(cxii m+/ hm n to the right with resista5*ihj( +mx/jjci mh,inces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belo r45;q4f ;r .fewalg a0kh7xkiw shows five identical resistors connected in a combination series and parallel circuit to a voltage sk;4rr a. ;f4h0 kxlfgi7aq5ewource.
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 identicat+ kynfgoxt)2i.( c x2l resistors connected in a combination series and parallel circuit to a voltag 2ox .fy(n tg)2+tkcxie 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 n1:obgq9q51 zku w:il. Which bulzngqo1kq :b l9 :iu15wb will be the brightest?


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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 switc.ah+evz9 p1 o.3 hzqe nd1ukze 0hs6a(h and three resistors are connected as shown. With the switch open as shown in the diagram the ammetk(upa+9 z qd1z.nh.zoea s1v3e6h eh 0er 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 swdkwswx. ah2a(o+t 1 .v-a5cc pitch and three resistors are connected as shown. W hw5(+c.ad- coa1a .kv2xpwts ith 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,qycp0*4f ,aqs a switch and three resistors are connected as shown. With4 f,s*ycpaq0q the switch 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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