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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 n )j;yo sv.,ugl b-u5ometal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resisugv 5nj ,l-.uob)sy;otor 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,a(4b *yxqapl5ng,:o -ys5nqs the_________each resistor is the sg:x* s5ba no4, l-pyyn5(qsqaame.

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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 th dpp d3;03r-yokkz -qsin filament wire of a lightbulb causes the filament to become white zy-kdp0 s 3ko -p;dq3rhot, 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 l jc)6t )hc:pzq hiy6w4ights are being replaced with LEDs. LED is the acronym for which one of the followq): 6jpychzi 46c )htwing 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 gra2hzittu84n04: luvu wphite 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 nen 80u :tzvl4uit2u4 hww 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 ar 6rueyqhxk. (lawl)1*e made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistaw eq1.rk h*l )luy6a(xnce 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 5:nks 1 )juhq7rvmyg0 diameter and half the length of wire u:vkjrs y) 51qm70gn hX. 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 ha4 t*n)*ccl1 sb5,z(crch od bns length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Wha5o,tb l* )z1nr csdcn(b4c *cht happens to the resistance of this material 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. H64t/ omn5ch gze decides to modify the filament. How should the filament of a lighthc zn6ogt45m/bulb be modified in 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 thek,7 / lpen:gsa same material. The length and radie:lap n7k/s, gus of each 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 resistance R, are connecb7 csg)pq *-iited 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 fourt*pi )- cqs7ibgh 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 inbmeeeipu92*mn zty,w s : 90;a the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resep s*a:zutibew 0 m,;yn2em99 istance 25.0 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 dp y,uhhm4:bv93g5ry shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diag53dm4gbh,:r puyy9v hram
- 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 eleo m o:(9k-qd4guy /mc1n0c0fikt9 f dpctrical circuit at the right. If the current in all three resist/pnfo9c0u9d tg4-1fk0iqkocd ym : (m ors 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 represent+t.7wbrl.lrzo7x;5u -m uf7za x0h 4 fnpbl ,is a simple electric circuit composed of 5 identical light,o u7zpi 7. l z u5 4rr-wxf0xbm7hantl;lf+.b 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 statements is NOT true concerning the sih(h0x hj/0*yesnqzr0mple circuit shown where resistors R1, R/qhn0j xz r(s00hh*ey 2 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 and:ag.7 b)k c6sts qu6mxY are 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, w skxg6mts7q).6b c:auhich 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 )vczcm:gbl)).ymy/ m will pass through the identified resistor in 5 seconds once the circuitc m)) mlzc /gybyv.m): 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 followingtiy bg,up:u8xqey,, ju)i6d 4 simple circuit have the same resistance, whic6 jb, gqut:,ui8)eyyxu d ip,4h 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 circun4t-0p0ft 7pm xono6o it diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltagexpo tofp4tm 07o n06-n 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 conneotje nzq k/-ata*49 :pcted in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissatet qjp-n:9 4zo*ka/ipates 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 resis/k6til l-bi3htors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, -/hi3ll kt 6biR2 = 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 1200ajyq:r;i 6e*h watts and 120 volts. What is the maximum value of the current under these c*arq;:6 ey jihonditions?

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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 toin y9ohj++ hb8 operate at 120 vo by9+n8 hhoji+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 dissipf6ymck,zmp.i1b iipj;51 lj*ating 36 watts of powe.jz1*6bif1py im5m;j ,kci lp r?

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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, 60uxml-c7irfia (: y .a:0 watt.” In normal usaf(yur: l.cm ia-i :7xe, the 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 following ruy.nntzzjki tl* +o0-m f)9 )ube0u-y esistances could NOT be produced by a circuit containing only three ident.k+9 jy be z-)0y*uo n )uf0lnmutzi-tical 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 equival-o1 qyrl0ms* t7deb- bu pzw:)q8c a6fent resistances CANNOT be producem 1d l)0uq-876-w:szfbaeyptrcq o*b d 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 connecteycpk)-+8rm3o j 6xp,- aozo tw*ah7bud together in different configurations. If all three resistors arem,8 7a3z*t yxr -a-kuc+ w)b6pjhoopo 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 b740l3igzllf 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 battery? Assume the internal resistance of tfi 7l3bzg04llhe 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 connectedfs:1d+wgqo14 ic) a ij in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemq wa)4g+f: id ci1sjo1ents 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 w4* ceep6 jpq/such that it has a resistance of 12Ω when operatinqc e*pw pej/64g at 120 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 tp 8q)4:iojh47n v:7-v widloae rx7p.dpnr3zhrough a 4 ohm resistor that is dissipating 36 watts of 47jirqd anlop7h.z op4:r d 7-v:wi xp)3evn8power?

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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 when connectedcsn+(jfq (xl1pzjrx; 4v2 * ep to 120 volts. If the price of electricity zcpnesx2 1 jx *l;(+fjv (q4rpis $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 cow3 disp02xjn1st to keep a 100W lightbulb lit continuously 0 2dnx1 ip3swjfor 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 through a lighxkbq:l 1p4e2i tbulb results in a power of 24.0 W associated with the bulb. Which one of the fole:ix4pq2bk1 l lowing 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 siq v/zj85 y7iryx owns a computer rated at 500 watts in a 120 V circuit. If all computerq yyv 5/7j8rizs are plugged into 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 bxt4cb pfts)n zf*9,;iyw:r9 is connected to four resistors to form a simple circuit as shown to the ri9r zypf 9 ibsw,bf:*t4)xt;ncght.
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 tmtwwnun: 9y1:/iw( n ac4t w2yo four resistors to form a simple circuit as sho91yitwn /a utcw:2 (:mwn4nywwn 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 resistorzs :46zm ljfr4d).mjk 8 ih*vos are connected as shown. With the switch is*mfh6 )o8z rm:l 4kz.j vdj4open 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 battere0p- wys: xul2y, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampew-u :l sxyp0e2res.
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,qs7ahaa,ws5 drk9 -ebs 47bbnb0 g ,w( an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thebgwb-,bwa0(e 7ar,bn9 4d7s kqas hs5 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 thea;yuuhs ;4 yt 3 7vknx5/x0qye right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance Rvt5a; n7k xy30x ysy;eh u/u4q.


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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 a;( knd -/uipmcircuit shown to the right with resistances m(n /-dkup;ai $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connect4mc-t:,gdng) c 2eqpo ed in a combination series and parallel circuit to a pc ):qgm2ec, ngd-4otvoltage 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 res1t ma*5h.ygpw5h ysm:istors connected in a combination series and parallel circuit to a 5:*ma5h1 .mgh wtysyp 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 qa;lnk6p h a;y-hlo1 qe+4g/dare identical. Which bulb will be the brign 1y-+h ak;a 6p/qdqghlo4 ;lehtest?


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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 three resistpyyz p j5u) *-(k8uyhfors are connected as shown 8p ykhy)yu5-(p*fj uz. 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 idof+efi7 ehxt6y 5qigqe)z0x.g 0uko 8469c aaeal ammeter, a switch and three resistors are connected as shown. With f00yecoeo 9xif5qk8t.6ghe)aq ix+a z7u46gthe 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, njt(p4k+, fdy6mut o 7an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a+f6djku mp4 ny7 tt,o(mmeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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