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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, q).(ys0sb agj an electric 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 direq( 0yb) jgss.action 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 resistorfbquyp 9 q1r5(.v+an zs are connected in parallel, the_________each resistor is the san +r9b.(upyf15 vaqz qme.

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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 lightbulb mmcm:r93 1 td;po;krx causes the filamend:;tr93 or;mm c1 xkmpt to become 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 lights are being replaced with L7 (qmnpg rq8qlc bm5;;EDs. LED is the acronym for whi8qp5 l rc7n;q q(b;mmgch one 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 graphite resistor has length Lvhce-d/ea / 6e 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 resistivityv/ec6-e/hde a 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 n iy1eux p d-3wmo,jc;(3.hzsare made of the same material. Wire II has twice the diameter and 3hcji1o.mdu ;pws x3n -ey( z,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 madz7qrx+ 1.nbr/g.dbk8f r4um nzax b9 :e of the same material but has twice the diameter and half thf:r rg bm.8axz/ bn4brnzxu1.9k +qd7e length of wire X. If wire X has 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. ,1 muh :/l0ca+vr p k.fdlfw+vjv0eo7This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mar:lwoe7pfl v mjcvk d./u0 1f,v +h+a0terial 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 wants to make a brighter light bulb. Hhc,,evz ;j+ -9 iaatuee decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbu-;,zthij +ae 9,eacvu lb 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 material. The lenkx f; aqg+8ly :(utf5rgth and radius of each res xr a+gu8f:5qf ty(lk;istor 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 resbuimko8i1rplkce07 xr/* 3k 1istance 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.” What is the equivalent resistance of this arrangement of four resistors?*ilrub 1i7mp/ e0kk1 cxk3 ro8

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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 circuitsdf7vpgl3 40y diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmg y0vfds 34pl7eter 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 compt11bnj9hshc ipt 6z(4 amy6x.d,l8v 8f: pogbound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors it:.bysp 6m xch81 9h bg416tpvf jond i8(a,lzn 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 cur2ce)n: c,m r/gvl6d ulrent in all three re/,vemc2ucn6)g:r ll dsistors is 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 sijqfpd;o3+yn ;mple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. d;3oy+p qn; jfWhich 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 is NOT true concerning the simple circuydpz/( :a vb3dit shown whe( 3pba/zy :dvdre resistors 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 connected in series to a batt4c1wf*8g cvat c8 qxw.ed6d f4ery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs Xd4t48w a1g*cdxfqwc 8f .v c6e 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 th* jo1*piwpz n-bdqm 4j.ndfh is/9fh)j(03 h vrough the identified resistor in 5 seconds once the circu o z- qdmn sj 4b*fv(0n9/p3p*wf. j)hhii1dhjit 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 ..myj f) d)nrc3i jyl84f.mucin the following simple circuit have the same resijf8)d.)cj y cfmumni3lr4y. .stance, 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 accompanyinid6 oxi49 c(g k 2;u)iapbzz3qg circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the 3qi iaz2o4udk( cbx)z;ip 96g 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 battery. Su buu-udbd0y(d) vk(-u1xo(mvppose R1 carries a current of 2.0 A, R2 has a resistanc(v(dyx b (0uddmok -ub1u-u)ve 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 resistujy*iyyju:* w9d1 qfya ,ej0f/t4wf (ors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thi fj u y,wjw0yt9j4fquy*d/:(* efa1ye 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 ratedk1bwqa5 t.gb9u7 h 84thef.c+on5knk 1200 watts and 120 volts. What is the maximum value of the current under thes1bbtwnk7 g 45a5 +9f.hoktqeh un8.ck e 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 beg kjn 0m67 ;odj7)dma 60 watt lightbulb designed to operate at 120 vkjmj076dngm )ob e;d7 olts?

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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 resisto .ssmoad)2 nf:zb 7vob:j ,gj,r that is dissipating 36 wajojb,:sdz vo. nfs,72:m a b)gtts 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 vo7s. yzjn0d3 tclt, 600 watt.” In normal use, th.nt z3syj c7d0e 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 followi( 49e n5wzmh tj4/qgorng resistances could NOT be produced by a circuit containing only three identical 6Ω regw4htz 5/ reo4m(9jn qsistors?

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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 resisto, vr zuaif22)ml.3f zcrs. Which of the following equivalent resistances CANNOT be produced using all threv rlcauff2z 2)zim3,. e 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 c t h/qtlf/+2 ntr(1x u-9hfdxkonnected together in different configurations. If all three resistors aret92ftu ndqk hlr+f/-xhxt1 /( 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 resistor is connected to a battery, a total power P is dis)jpr n.t,-g(5bsnrpbsipated in the circuit. How much totalbr-gbn5.p p)sr,n (tj 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, having resis14h zlz)os-jb tance R1 and R2, are connected in parallel, the equivalent resistance of the combination iss-1l 4 ob)zhzj 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 resistanc a0/-a;a8uh zyjbs b-ue of 12Ω when operating at 120 volts.by8 -s-abujzah;/ 0ua What is the minimum 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 a 4 nhrvp k7)v wr7) afk*tz/1nw+ ohm resistor that is dissipating 36 watts of/r+fw) tzv n1h*kw7p) vknr7a 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 8ofo+8he9jv fm:iof*when connected to 120 volts. If the price of electricity9io+jf:88fof me voh * 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 lit w354.w)na*ghwakz r scontinuously for 1 yeaa .n3srwhgk *)w w4z5ar 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 x8+urel,0shv(yog a- A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of thexoleh,u -sg var+0y8( 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 at 50rnqp.oxnl ;y0* s2 y-q0 watts in a 120 V circuit. If all computers are plugged io*q-.yn;p0rlxn2s q ynto 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 conna )f kte(9vyzt i,wf*b 7:h.qhqk:c2vected to four resistors to form a simple circuit as sh .zbfqi waekq yh)2k fh9v,*t7v( t::cown 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 resistorss :5xlk eiuf) ,+1f8bmm9zlp keo-i+bc a-8y a to form a simple circuit ak y5bi+sz xlkfe- u m c)piemo,88 1:l+b-9faas 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 bosghc 7/hb, q,ffk29 ju6yq8ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads s7 6 h2,j9 b/y8fkocqufb,gh q2.0 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 sc*c xs +.d/w ngyzhr82witch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads .8r2y gxh+wzsd*cc n/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 ammetp7 /3kjppsax8: ;xwoser, a switch and three resistors are connected as shown. With the switch open as shojpk;3awo7 s:8ppxx /swn 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 is the equivalent resistance? lcv8aypmy1 55/0 u smwxi1m,v Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistanci ,w/va 10x scm58yv1m5lypum e 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-fa fp4fa yz1, shown to the right with resista-ffa z, pyaf14nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ide+3 ,wnkm )dhgpntical resistors connected in a combination series anw gph,m)dk3 +nd 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.n/k7 +vt;ss7,3jb9 bmhzp4a pj5ncu*rh ghr connected in a combination series and parallel circuit to r*;k/nb9 ph4 psntgjz 7. c+mvh,b7ha r53usja 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 identtm b5 5:wo) +yasyuig30)9oueu3eyg nical. Which bulb will be the brightest?)5booy3twi3guyn)u :aee+s 9 5g m 0uy


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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 batte dmz0 ( ei3/hxc68envbry, an ideal ammeter, a switch and three resistors are connected as sho /c i(d0mznhev683eb xwn. 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 ammetela2-7lfbn rx i*g5drm ;i55ax 6gum0fr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am i5a mgaxbiu6d;n -0xf5 l7flrgr*25mmeter 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 ammetb45gmz) zb wks 8o6j0ker, a switch and three resistors are connected as swzgjb4m 680)kok z5bshown. With 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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