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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 k s:/h t;j4jdfcurrent 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 direction of tjf; th/kdj s4:he 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 connecolxu f3 j.0lx 7uz.2fbted in parallel, the_________each resistor is the sa 0 2. jlol3x.zfxuu7bfme.

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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 ct-vr*w :zf pg4 7yjn-3kedo;tauses the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This 7ezv:*jto3;nyw -t 4rg fpk-dhappens 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 rep4h9qq20oi c xdxtap 26laced with LEDs. LED is the acronym for which oneaqc402t6pqo d 2ix9xh 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 crossbm+)ot/b d p7t8iv c q;k.+zqe-sectional area A. It is to be placed into a circuit,q;+ c/i+ot tbm. v kqz78)epbd 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 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 o y )),/)vqap xajla)mif the same material. Wire II has twice the diameter and twice the length of I. If I has res)ma, p)/la))jqy vx aiistance 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 buty yv2 jyobmt2r8i,0r 8 has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would h8t,i mvro2y82y rj0ybave 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 xjva6 yiy1,r)7bnrn /length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance ofynb x 6/nr1j)i7,arvy 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 l: 4 1fln dh6k7qjlm6bdight bulb. He decides to modify the filament. How should the filament of a lightbulb be modifiedd:7 jfdhkl 6 4lqnm61b 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 mad sce.5p6fdl 2bwqq25 pe of the same material. The length and radius of each resistor is: qppfle 2dc.2bsw55q6
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 cihd8v2dg51h l dqf;,yibd9; lonnected 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 hil,;d 2qyddg d5i b l;f918hvresistor. 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 has35c b+3bvsv cc internal resistance 10.0 kW and the ammeter has internal resib v53svccbc3 +stance 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 showup3 49;fd szv1ztdqz)w lmxc3tk15 1 on to the right. The three bulbs 1, 2, and 3 - representedx 1z d 9;)zup3tmkq3t1sfwzv1o4 ldc5 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 electrical circuit at the right. If thj:b lah2uc//se current in all three resistors is equal, which of the following statements must 2/alsbc uhj/: 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 els 6brd+a 3r:5kvs2- nwju7aezectric circuit composed of 5 ide3wj5z use-r ndk7+2:vsara b 6ntical 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 sta5*6nmxnf u4wvtements is NOT true concerning the simple circuit shown where resistors R1, R2 m4n vfwxn56 *uand 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 seriessc2 f4oznt0h:3/fxlu to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are i0hftflo3/un 4x2 cz :sdeal. 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 identified uy1u7au p1b4wlvv 5(,aqdkb ;h :.gytresistor in 5 seconds once the yyuklp :h (vtudb4;w.gaa 7bq,1v1u 5 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 re8u4yi3gghrx+l9 yh y )w0lir8m0gvc(sistors in the following simple circuit have the same resistance, which would dissipate the gre vhl4y0 cg3g+iwx l9mgu0()8 yr ir8yhatest 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 didvz6 7m 8e0g(0; kjvwvlnq5s o(vhi1 jagram, the current through the 6.0 Ω resistor is 1.0 A. What is the pojhoj08iz;dql 1g en(s0kvwv v(75v6mwer 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 sg+tin::x9jb8-r r5nbf ,rm aseries to a battery. Suppose R1 carries a current of 2.0 A, R2 has ajm:t8rr:a-b, ngrfi 5+bnx s9 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 to a batpahd99p l g-2yhuilodj 8, x-8tery. Suppose R1 has 2V across it, R2iopgx hj-l -hy2p898 ,9dladu = 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 maximuu mymd;pls6(5)q g:runic4 5r m value of the current under these c(g:4nim)r 5 l d;ycumspq6r5uonditions?

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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 c9c (mn 1*tkczwatt lightbulb designed to operate at 120 volnm(kz*t91 cccts?

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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 t pz6/4+l6lioi c7-jak2; e hyyy/q xyxhrough a 4 ohm resistor that is dissipating 36 watts of pzcxi- el4+hp/ kxyjo6qya;72 y/l 6yiower?

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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 t*6mq.xbfd6g (uj m0 ta/x:bqwa;kl*to press clothes is marked "120 volt, 600 watt.” In normal use, the curreab*xmb d( /.g6 tqqax fj;lwk u0m:6t*nt 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 ctc5 2e xdf-nf*ould NOT be produced by a circuit containing only thtn cd ffxe*52-ree 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 t ,0y-ggnur(jw auwe )4hree 1.0 Ω resistors. Which of the following equivalent resistances CANNO4)uw,(rg- g ua0wnjey T be 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 be connected together in eo6,/.n26/j xcd0wpox iyet w different configurations. If all three resistors are used in a circuit, how many differen6,2yc nx.6o twe//eojwid0x pt 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 tota k a 5,hykp.opey416all power P is dissipated in the circuit. How much total power is dissipated in a ciry ,o4yah l pe6ap.k1k5cuit 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 resistance R1 and R2, are c 1yzp)a z9gn/z,m-gw-t hi a4bonnected in parallel, the equivalent resistance of the combination is 5Ω . Whizw-/ ibn) -4tghaz1 aygzm9p,ch 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 suchptdm2i/ e3:tr 0rvmu; that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.ti3:ted r0p;/m2 r uvm45 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 thxx;.a brz oigcti5u5f ; ;zh2)at is dissipating 36 watts of powerr iau5;5cz;ozt;xfxbg.i2 h)?

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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 drnq ol vl9hywh g-b3vkb 9x+*6)aws 13 amperes of current when connected to 120 volts. If the price of e6ylxb hwo v) g-9 qkhbl9+n*3vlectricity 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 contin: ae0qf k; xutzt *.x6jh:hw/duously for 1 y :0* xtdxz/jta;h h: .wqe6fkuear 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 oi9/kvk03i pw r ytol8gnb/jg w)sq577 qdl1(pf 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following ciw/l)g3qids507 tokv /kl r(79ybp8jn1 wgq phoices 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 computie ff4ri.vn x0d+ 48gter 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 computers can be operating at t8gif4 n vi.trd4+f0exhe 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 simple cij,n q/wkgkg6urje0 9/ n5k bu8rcuit as shown to the righ0q,w rng8k5u6nkk9b ej// jugt.
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 thtdh-hz;*zic suvh6 tyav p0 ccq,.) 27s tg93o four resistors to form a simple circuit as shown ;t. gh)h-d6p 029suqczicv schhyzt7t*a3v, 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 resistors ar zgv 9pz)lcx0k is74s-e connected as shown. With the switch open as z- p0ksvzc9ilgs )x47shown 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,t- .hby6s f8uf an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th f-86 f.htbuyse 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, .f ,w+ 5okuwztan ideal ammeter, a switch and three resistors are conne +5fz,wouwt. kcted as shown. 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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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 equiva0a1nx:l dotes/xo 43 rlent resistance? Assume that all wires are ideal, the battery has no internal resistante:no x/xo4 3sald0r 1ce, 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 :a.s x reikxz4s7j.)hg p-ho7shown to the right with resist i7k)hpz 7gos 4hejas.x-.r:xances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idw/xk 1nn h qqe/p*wq,r.2xf9p entical resistors connected in a combination series and parallel circuit to a voltage source./q/qx.2w* kqn 9pernh fw,p1x
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 identicaliot o3 yt0u/ol-h i23a resistors connected in a combination seya3i ol20h3 it/-uootries 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 bulbsst3 ;t5 zikwnmwc-8m3 are identical. Which bulb will be the5 3w winmzt-mk83 s;tc 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, a bi;+5wcycbj 8n ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagi5bjcc y+w8 ;bram 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 a i9minpec4 o;fqr,j 23re connected as shown. With the switch open as shown in the diagram thmji4 o,9pi2qf 3erc n;e 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, a switch and three res/ko, ajc v7,ftistors are connected as shown. With the switch open as shot,7fok ac/,j vwn 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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