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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 t3kyfjlvd-1911ca0hlx3g llnhe metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and t1 1alfnhy33 1g-kxlj vcdl 09lhe 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, the________iyp ;aj 48x0 x/rtkcdlk.9a )m_each resistor is t)c8j.xaikytal0m p/; 4kdx9rhe 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 lightbxj k4cjs6 iu(0f a+e7xulb causes the filament skf0a7x6(x+iejjuc 4to 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 b)x/ l esmq.c7c:xua )heing replaced with LEDs. LED is the acronymha.ux:/mq c))x7e lsc 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 length3e 5 cgmbxc.u+hm 5+tc L and cross-sectional area A. It is to be placed into a circuit, butm .+cc h ecm5gb+x5tu3 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 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 thq ,rbgon(ul )h2zllfk me; (x93kd+a 4e same material. Wire II has twice the diameter and twice the length o9hn(al( kd ruk +)be4fl2z , ;gmolxq3f 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 and half s ziw:/, cvr.tz:ae)xthe length of wire X. If wire X has a resistance of R then wire Y would have a ,.)z/ w a :etvzxcsir: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 radiu6pey8*8acrk q s 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 material bp8ac6y*r 8k qeecause 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 mlp+ c s59)p clar 327c5m nlirdi5f3glake 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 mc)m2 dingrp53l5a f9l7lslcc+r 3pi5 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 may* :cx1 udq;hsaxuu8+de of the same material. The length and radius of each resistor ixy;u cq*us 18u: axhd+s:
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, eo/7aydt; do /j9fd :joach 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 the eqoy/j: oa/; 9do ftd7jduivalent 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 diagrssbxf/ 9nqi32+8 g;ijd ,gwmi4h ivy5am has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 omx83 i;i+ fdgwi24jib ynsv,h5sqg 9/hm. 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 showna u)rpt,5o6nl(mk4v b to the right. The three bulbs 1, 2, and 3 -mr,n)k(5 u 4oplb6 avt represented 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 ele q ga,.:yvebx6r(k4f hctrical circuit at the right. If the current in all three resistors is equal, which of the following statements muk .vga4 r(qx b6,efy:hst 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 composedgyli um,l(d5i54fr d5txmp)-r /p9es of 5 identical light bulbs and 2 flashlight cel l( 9)l -s eif rrmy5mgxdp5ud4,5/tpils. 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 NO /t8qrrrse0dyq:.: s t2:zon uT true concerning the simple circuit ssqt8r:rq2:r0y sud.eznot /: hown where 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 connectehboo;(/fr f; vjn9 (ved 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 withj(rhovb/ n;(fvof;9e 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 identified reskyq kj +x/2ort4a(x 8cistor in 5 seconds once the/k x 2to(8rxayk +cj4q 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 resistors in the following simple circun/ y2 qz7gjp/rit have the same resist 7/p2qrgnyzj/ance, 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 Ωwumr3cf m820fgtis 97ndm61ngc os-. resistor is 1.0 A. What is the pow1-srncgco20n 7m mim8 9wfsgud tf36.er 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 cxmfs2g 3 go/n1n53azronnected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistaogs51mx3 a2n/ gfrzn3nce 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 paralle edjq*vty 2 ,b)nact85.uz(ahl to a battery. Suppose R1 has 2V across it, hqy52zj*(cnt.v t)8,abea udR2 = 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 watts and 120 volts. What is the. yhh7qbqv vq;h9 6 xf ut;zd6gjy2 jftt+//z4 maximum vadt hjh79f2b6jzuzf tq/ x+yqtq;v.gy6; 4/h vlue 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 resist,b qr2kdsy6o9ance of a 60 watt lightbulb designed to operate at 120 volts 2b r9dkqyo6,s?

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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+wz724adm*ub3 z pu0 nv14lpuwdcx:w dissipating 36 watts ova4cp4 z xm+u2dw ww*1b:pzd7 uln0u3f 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 volt, 60 : 4f+q6wzjpav0 watt.” In normal use, the curr:qw v6jazf4p+ ent 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 be prodij bqhq89y 17suced by a circuit containing only three sy 718bhji9q qidentical 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. Which of the following equivalen+m) : dkf-wz1d:a0f5b cuf qgat resistances CANNOT f:d md0 bqga)wa fu-zc+5:k1 fbe produced 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 bex *kiel:xz ./m connected together in different configurations. If all three resistors arxmke /:. izxl*e 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,0+qnmhc :p)i 1wr 7*d:w2t iri+h h.evwfmp0x 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 battew1h:h :+)mw7 xd 0vh i0qep wnicp+ir*2.trm fry? 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, havink 9 )il10avc ydvu)w1ag resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following st9 lci)v1 ukw)1d0ayav atements 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 resistance of 12Ω wvwwlpvri;.(fh , d45 ihen operating at 1id5pv .ww( ,h4r;ivfl20 volts. 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 b swn:lhv4*+d4 ohm resistor that is dissipating 36 watts of power?hb*d nw 4l:sv+

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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 hf; wj59wp044nl-aqrtl a 5x:ks lpr+ teater draws 13 amperes of current when connected to 120 volts.0 xtws:-5r a j9lrqaf4+l4k;p5pwl t n If 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 mu 58cvl sn5fg/6 ue5wjqch would it cost to keep a 100W lightbulb lit continuously for 1 y5wj5sufle6v5/n c 8g qear 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 currem9cv, *4pl+v b4g hgmdnt of 4.00 A through a lightbulb results in a power of 24.0 bgvm l *h+ cp4dm4v,g9W associated with the bulb. Which one of the 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 500 watts inf5 5vej7xv/awc efodq ,o(80o 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 e0ova8fvx oj5fe5( , woq7 c/dthe 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/d4kor4w c4o vh6k ma3 is connected to four resistors to form a simple circuit as sh6443/k 4hadk w vcroomown 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 simple5j(1b7ovra5 -q,j4e. tjhcvsw jia3o circuit as s,a jb.- er1owoj(5tv i3s5jv j7hcq4 ahown 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 ammeter, a switch and three resistokxd su :)/r/elrs are connected as shown. With the switch open as shuk/rd/) e:x slown 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 ammete5y-hukc j .eb f7uyel.,y3 7ter, a switch and three resistors are connected as shown. With the switch open as shown he 5k-lj7 yy7ue b3.cfu,e.ytin 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 resistorfi2p6 z jdqzj 7cy8;2zs are connected as shown. With thi8 7pj ;dj62fzyqc zz2e 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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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 r6ywvww; 2k6jcj 1z3br ight, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resist 3vk6rwwb1 6cy;zjw2jance, 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 circuif z41z ubw 5j:7yw*oost shown to the right with resistances y 5s wowoz1fzj*: u4b7$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identtbasr1 0uf7 cc,fw (u/ical resistors connected in a combination series and parallel circucu1 fac(0tbu,rs/ 7wfit 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 in ag nycq+bdm ,-cpnf2(. combination n.c,ym+b f-2 (gdqnpcseries 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 bp;1c67tkxl)ayrck n -ulbs are identical. Which bulb will be the brightest? k6yncl1p -txr7ac;)k


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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 a,)qox ir ,7wiifpn0p l9w-tkvk:5n1 mnd three resistors are connected as shown. With the switch open as shown in the di7, k9i:5w 0m1tvx)nplo qfnikw -r,piagram 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 resistors are conntfv061 w dachd(d( w 8u6ex-iyected as shown. Wit f 0uxia 6dc1dh6-w(y(ewdv8 th 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 ammetrqeqh, )na, +ry6a;hder, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rean h,;h,reqy aq d6r)a+ds 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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