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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 e 0)j;i2v,9elelpt4 t(h pkopjxists in the metal resistor connep4o92je)eltkpvj ti; l(,hp0cted to the battery. 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 connectednmod ey.c,zno4nn. 9: in parallel, the_________each resisto9 ,e.o z:4n nomnnd.ycr 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 thind58rko0+ma6wvmc ,v n filament wire of a lightbulb causes the filament to become 68 d n5kvc0vomma,+ wrwhite 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 LEDs. LED is /+d670zp jf3 vg.pzf z f-npt(px 9oprthe acronym 3d.fz(gp 9jpv+ 7 ft pz6r-p px0nozf/for which 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 L and cross-sectional hayyqm 8l ; iooc6tk j;o(*-n;area A. It is to be placed into a circuit, but it first must be cut in half so that;yoikmca o;q(ohtjl-6*yn 8; 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 are made of the same material. Wire II h,evazn-tq * 4oas twice the diameter and twice the length of I. vzoeq-4,a t* n 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 thei(xqfx8 0kz9t d,*g5qi-zhri uf 1 e:j diameter and half the length of wire X. If wire X has a resistance of Ri*i5rg(hukiz q-qf1t f 0dxxej 9:,8z 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. Thuvocy.) f-tho:b ,z8uis piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this mater8hc,oo fvt-zuy bu ).:ial 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 b* lp-in1un7lg4 ptso nf-mh4, 1 goby6righter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mol ,4n7ig p-s1mub14l*t-pn ny hfo6g ore 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 maln5( wa7ua 7kbterial. The length and radius of each resistor isb7k (l5uaawn 7:
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 resistorszbbyfn4ci)p*bwt5 c9/ -: ;fhq xc i-p, each of resistance 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 th-nz4*/-cfqc5b ip9 ywfb;tcb ) hxpi :e 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 accompanyinh0 5qo ty m0:3)z30(k8kdpsf dqjpzctg circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.t qzof5q3 h80m z3t 0:pc)sp dyk0kdj(0 ohm. 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 tyfeq7 ;n7j f d9ihyt 5vowko7zi 6/zt;q-l;6bhree bulbs 1, 2, and 3 - represented as re y/ lv 6o zd-f;qy7ento;7i i6kwqhjz7t;59bfsistors 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 23vnqgb quy00at the right. If the current in all three resisvbq0n y 2ug3q0tors 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 simple electroj9fpwe+5/ jivtav5 .ic circuit composed of 5 identical light bulbs and 5 /jvao ep+ vit5w.f9j2 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 is Nai/6oui ap8ai9y av13OT true concerning the simple circuit shown where resispyi9 i/ 3oauiaa6av1 8tors 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 battery. Bulb ul -hnax b1;h.X is brighter than bulb Y. buahn1l h-x;. 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 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 idfia, p yr8lxu.;w44ohi 9jy.dentified resistor in 5 seconds once the circuit wayjh.f;d oiu.i89p4ly ,a4r xws 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 followinggeig g;cz rv3l1h33k o(uo+t9 simple circuit have the same resistancgk3;9+z g3ci lur1 otg3veho(e, 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 6.0 Ω res3ghqewo 7c(jd76hx/ iistor is 1.0 A. 6o(7gxq/ 3w 7hchdie jWhat 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, an1, wei qnx7k1gd 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 din, wg 71ieqk1xssipates 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 R.mm+n 5 : sy sz-ya;*vncw3ont1, R2 andR3 are connected in parallel to a battev5s;.n t zynn mo- c:+3s*awymry. 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 iso ;n(5 de ((0xcochpel rated 1200 watts and 120 volts. What is the maximum value of the current under thes xe(c((;c05lone hpode 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 lightbulb designed to operaq+at*fkl/c9 bte at 120 voqlatb/9f*ck+ lts?

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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 e g4 f;0rh(5p;q tw(m9if tagrdissipating 36 watts of powerpr9ga ie;w5m( (fth0 r;gqf4t?

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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 marj4(e h,ih ,(bra)yiaeked "120 volt, 600 watt.” In normal use, the curreniah,4),yrjh abeie ((t 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 could NOT ; kf t5cgymq5b.3x hg-/5ydi,t jtwc(be produced by a circuit containing only three i5jcchy.ty/5dt , 3it gf (xg- ;mkbqw5dentical 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.+ ,lss62jed,ndao h u6 Which of the following equivalent resistances CANNOT be produced using all throns6j+6 ,dls eua,hd2ee 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 vyw hxnz4nn x/6ou :+5n5lf1doalues can be connected together in different configurations. If all tnxd1x6n5w :ylohfuo4n5+ / znhree 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 resistor is coll3+ foeq(v8q -qkn7 mnnected to a battery, a total power 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 battekql- mf3en ( oq87q+lvry? 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, x-bc)-yea vkivu- ( /pdb*(ijhaving resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the rekj-*ibbp -a(cyvdx (u /evi)-sistances 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 resistance of 12Ω when operati s-*mb lg( i)wsx(kl.ong at 120 volts. What is the minimum amount of times)( o-gl wm lxk.(sib* 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 ohm resistor t7 j5i9rca:;j9u8 aop uija bw.hat is dissipating 36 wattscu5aju:9ij ji 9 wab.7;ro8ap of 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 dozcff/ 3dzf /ibdw il0j 8g 7w0p;p.)nraws 13 amperes of current when connected to 120 volts. If bz pj3pw0ci/ f).d;l08fzwog7idfn / 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 tg4d8m *f+3 cwsgmqf5 much would it cost to keep a 100W lightbulb lit continuously for 1 year at a ra5+m8gdfgw qfc3mt4*ste 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 lightbulb1xmro+bq 7sgw78p2 yi results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the rwsqg8b+m2 xrpy 7 7o1iesistance 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 rat)irk4c +q+ rpmed at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by i+ rprq km+)c4a 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*qg1iyzr-gb (skn8j/ x( r0nx to form a simple circuit as shown to/ xkgr8((* rjnib-szgqy x0n1 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 fo5 g,c jenc;/dw(i+fm drm a simple circuit as shown to the rigfcd(e;+c n,gjm i w5/dht.
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 ammeu*uqa du5m;9xo 6g+ew ter, a switch and three resistors are connectedod wau9 ;uu+gx*5qme6 as 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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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 resiswlbyhrr7k);(76* vopfrc cg; 5g:g kmtors are connected as shorg g)o(blkf7;6cc5g k;wy*rp7h rm :vwn. With 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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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 switphtzn ra3 m16dz0z/1 srp qu9i0+e* arluo)/cch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reupoa 6 1dt/ ieamzcrl/*0rzp9+r3nhzq0 )us 1ads 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 resistank f:.v: lsms(9ffvx:nce? Assume that all wires are ideal, the battery has no internal resistanc:x n9sv.:(:f fvmksf le, 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 ri35kt l- v5;vattbh*h4i7c hp qght with resistancetpbv ct5it4qhv- k7ah* lh3; 5s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a m-v 6llhpcqbh(c3jo1ll *,7c combination series and parallel circuit to ab1qlclcmll (h 7- op6vhj*,3c 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 s k) f0tj7tu;clcq b0*zhows five identical resistors connected in a combination series0qcfb0jl*c 7t) u; tkz 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.4lz+q +m:qp kg Which bulb will be the brighmgq k+:p 4z+lqtest?


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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 switch and threer2hfd7d a+r0 xjt0dt ) resistors are connected as shown. With the switch open as shown in the diagram the ammeter)7 0j+t2 fdrxad0tdhr 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 threeb*/xqhvtqbi6i-r 1fg, ub2 /j resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0tix/bibbqqv -* 1hu6j2/ grf, 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, ahy5(ys vz +1hk switch and three resistors are connected as shown. With the switch o5ksv z+1(hyy hpen 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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