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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 el1*zwtz c9cbp4ectric current exists in the metal resistor connected to the battery. Which one of the following choices best de*zp 94wt1zbcc scribes 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 connectedwnbp*b)ambr ;.5zq)m in parallel, the_________each resistor is the bm bw;m)*b) 5 panqz.rsame.

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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 causes the 5 q5y07czzudd 7hjoc 7filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens because c5yq7ohz5d d0c7 jzu7

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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 LE ab.6ermk 7x76dvfac bk0 k-.gDs. LED is the acronym for which one of the f7kbx- k6rm6. gb7cka0av. fedollowing 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 any1 e3rr hl0d(ufet5 n2d 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 n(re 3yfdr h tu5e02l1the 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. Wirexv i5m; vms-x-0 5rmsob 8yyv)8nj c7i II has twice the diameter and twice the length of ovxy r si5x ivy)b5n08m;m8m -s-7c vjI. 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 hqq s:rzf g,fj7 ofue7mki4:;) as twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have:e,s iofz)uqqfkjg7 frm;4: 7 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. This piece of material4h5d3 kdm: f-x vlrq5g is then drawn so that it is a cylinder with new length 2L. Wh5r3 lx-4 :h5dqf mdvgkat 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 l(mqc*zpk f(y 3u9u6k35 cnz9yxbt 9 jyight bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voykuqnp xy c 5fcz(*u6m y(399btj93zkltage?


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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 odo:da5akb +umy 6,sie98 dk: wf the same material. The length andikm: wu6: dbdos5+9a8adyk e, radius 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 connected to aot)8 pc,m9f xw 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 fcmp t)w,9ofx8 ourth 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 thfim7ed3g 8. o 4e6,yrb 8coyjhe accompanying circuit diagram has internal resistance 10.0 kW and the ammeter h. ejr,8 f67ioo c8bmgd4yeh3yas internal resistance 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 shown to the ri wp . kxo8p+cw:x4wxn/ght. The three bulbs 1, 2, and 3 - reprew p k+w.o4c8/xwnpx :xsented 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 electric4maol o 8.) oat;e4djhal circuit at the right. If the current in all three resistors is equal, which of the following statements must be traahome dto)o4l8; 4. jue?


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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 rioz6o5.y szhuv*a8i w ;ght represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or by856zoowvu . s*hiaz; ulbs)
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 ,t5,f1 w dbfilconcerning the simple circuit shown where resistors R1, R2 1i5 ,twfbfd,l 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 bs t5) 1p:g:m6y. tbl2hwiokb ce7;wa qattery. 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, which one of the following choices best representsphwoel5t.kiq ;sc yg 1mwb)26: 7t:ba 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 coulomg2 x ,w+izx d lwetj:2 polk:0s(yen:2bs will pass through the identified resistor in 5 sl0e +ozplswtgxkyi2xwe2, :(:2d j n:econds once the 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 ci0r:2ffsn x:o orcuit have the saonffx s: :0or2me resistance, 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, theo .z q+gn xdjc/rg2 .9p: l8 wo-byvm,fzn4ps; current through the 6.0 Ω resistor is 1.0 4.c;x9/yvo nwj +f8p 2qbg:-mlp, sz .dgzrnoA. What 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, Rkc4g*dgs,a1bk 9u 7 mi2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.079du,1 mkcsiga4k*g bΩ, 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 paral /h1tis qt/1e+x1,auzo6uesylel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the curz1s,xuuhq+y1 a/o6ie/1tst e rent 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 120v9m ta.gd4 n)o,kr d+w volts. What is the maximum value of the current under these ntro.dw+ vga 9 m)k4d,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 watqn wbgsirtr;m *w8ez ,:+*2p it lightbulb designed to operate at 120 vown2 rim *t:,+p8 eg;zw*bqsrilts?

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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 dissipatingadq7+s 9 sdc9fm5l ;pjq6kg 2w 36 watts of powep qk6g 9amcs9 d;7+d2 jfqlws5r?

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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 usb,+bxg *bt .cw1 fys4n(-ddoped to press clothes is marked "120 volt, 600 watt.” In no bb-1dscgxnd (4* +,wop.bty frmal use, 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 resistances could NOT be produced by a circuit ch7:+wr w6xs6kz,m+rdjcm4n sxk3v :a ontaining only three identi4 6swnxjhdk: :k3 srmrcm7,6+wax+vz cal 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 i i1ko5ebj48lhree 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three ree45oiibj8lk 1 sistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistoprgtq223/tt 6 ncmm e+rs of different values can be connected together in different configurations. If all three resistors are used in a circuit, how manyrt2te n+g3 2/p qt6mmc 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 tot;ncmya2 o rqs n+;) 7k)dgg xsarg1j)5al power P is dissipsgn 2grdna ;koamyqc) 51;gs)j )7xr+ated 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 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 resistanced 0t2l:aj mg,pip 1,ky nh,g2os50 dki R1 and R2, are connected in parallel,g, p0g dntl2:1i, hipjmk2,5 yosak0d the equivalent resistance of the combination is 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 resistance of 1e8,fjujn k64l2Ω when operating at 120 volts. What is the minimum amount 86,lj u4 njfkeof 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 ohmo- wmno0b05st resistor that is dissipating 36 watts of pow0no-sb o 0mtw5er?

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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 connected tom o8:w .;inkzslcx0kf8v l5ta oo4b 6* 120 volts. If the0c m.o 8sioa4n 8f6*x:k ko wbv;zl5tl 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 much would it cost to keep a 100W4.a7 rbn+ fb2wwzdhcxn ,p*s 8 lightbulb lit continuously +xdn7*z4h ,apwrf. wn2bs8 bc for 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 lightbulb resultsen4lh4 es;yx zt (d+8wcd)p b9n2gm6q in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of thex6wgepq( 4;s2l+)d mbyt hcd 8ze nn94 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 fass fwv 0nfh)7 ch90hbtt*(g2 smily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged ibt c*9h s(t2wghssfvh70f) 0nnto 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 connected to four resistors to form a simple circubfte 3q1c+l4e it as shown to the right. 4cble t1+qf e3
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 simple cqg5b wfwu 75 ngfimgc/6 r16s,fdrd(+ircuit as shownr6gs nr6cdd5mwu/1fgbfqi 7,gw f+( 5 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 ide3 a22rzkz+zcw0,w bxkjo;g4n al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram thegc,xa2ozk+w2b;zkn 04j r z3w 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 resistors are coopc8h nthbth70+g m y//me;c 1nnected as shown. With the switch open as shown in the diagram the ammeter ream ;b1e/0 t/ mnhgho 7y8c+ctphds 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 switcsq :-g:gkr kj9h and three resistors are connected as shown. With the switch gkq k- s:j:r9gopen 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 s7ma xzl,to1f/ pb-1p-nkt 5(p:oc bcxhown to the right, what is the equivalent resistance? Assume that all wires are ideal, the7tlk :( xax/ b1ft -- pc5,ocopz1pnbm battery has no internal resistance, 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 rightlf n m/ty -;uvm(edx*li.m xgs: 09+wq with resistwem.*9m ;g t0xmivnsd(ly :+x/f- qulances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 inwb6/ -zec ghsvn,6c0u a combination series and b/ hc6v,cu 6w 0zgens-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 condptb-q 6zpe 4owe c( t:ng5xc,2x6,uonected in a combination series and parallel circuoq 6c,nxe tb6xt: u2 4-o(dp5 cwgzep,it 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 /b2m hhmvg -14x c;z6tkp:mpd bulbs are identical. Which bulb will be the gc6mpmtz /1; :hpb dvk-h2 x4mbrightest?


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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 ands fq(aidlr- mj k 2)hc,-mc.g2 three resistors are connected as shown. With the switch open asi,) hk2 q(2m-lsg.-crdcj amf 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 ammeter, a switch and three resistors are b90;o7l c o jz/do/1wooudhm,connected as shown. With the bmo9uo oo7do; 1l/h,j0/w dczswitch 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 ammeter, a switch and three resistors are conn3*tay2itapd ,ected asp2a3 ayi *dt,t 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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