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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 metaliro12ijv e; 1p resistor connected to the battery. ;2ev 11ripiojWhich 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 connected in parallel, the_______jw/ roxf my2 en8- sz15w.zu6*ocm,b u__each resistor nzs6cxe,/85uyw w1 ozf2bjr .*mm uo- 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 thin filament wire of a ddm+a: wlx*1.x sgkq2lightbulb causes the filament to become white hot, while the larger wires connected to th +1x.*q2gs: mdx dawlke 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 u;4i ucfzo, bbw7l4/5mvtdb5 with LEDs. LED is the acronym for which /v5td,uuc7f4l m5bo i bbzw4;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-sec;p n:x:eb hp;rtional area A. It is to be placed into a circuit, but it first pn rp:eb:;x; hmust 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 the same material. Wire II has twice o d4+)gi:+whgfkn*v h 1ls0bfb5iaf 0the diameter and twice the length of I. If I has resistance R, II hashlwi*hg+ 0a :+dfbfn vi 4o)f0 ks5g1b 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 same3i0sf o 9dbz,t material but has twice the diameter and half ti03bo9ds t ,fzhe length of wire X. 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 has length L aok92:y,cy1 spw.bh.xd,/qhkr k 9jgynd radius r. This piece of material is then drawn hqg.pkx/9hs,: ,r. wykkd2j c1 yyob9so that it is a cylinder with new length 2L. What 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 mak t 7hgf,8ul9vd9hju f:e a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make thh:,f h9dvfj7g8u9 u lte 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 cylindricaed mjl8o+3-fv l resistors are made of the same material. The length and radius of each resistor is:mol8jd3- e+fv
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 resistanceb3 xq g+k)8sy 31nb+n f1heyfs R, are connected to a battery in the following wbs1 y3 n8xygn 1)+qhsf+k3fb eay: “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 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 has internal resi+obg/q 2 0ba)8yye ykgstance 10.0 kW and the yqo agg/kb820 ybe)y+ammeter has 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 right. The three bulbs 1, au dhb1)z, n; *fvreh02, and 3 - represented as resistors iha,e)z;uvbf n*1d h0rn 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 7jg ;lj a 43msjelap8 3t+:yakright. If the current in all three resistors is equal, which of8g+laa a :y 3sk7j3pjemlj ;4t 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 (t8 au6xglfq lw0 ue80electric circuit composed of 5 identical light blflt(8x086ua e ugq0wulbs 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 jlyhlz1l 6+(ntrue concerning the simple circuit shown where resistors R1, R2 and R3 are have e +1zhl6y( ljlnqual 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 serie p3q.wew5xt/badd ec/3yn 5f2-6ju qys 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, whichw2deafp 53wqqd5 y /3-jy6ncxb/e. ut 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 throub+6tn uxl/mzi k7 0dn7gh the identified resistor in 5 xmbn7tlz0+ udk i6/n7seconds 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 circuit ha kq,0pw*h:glqz ,d/p zve the same0,h: pkg,*w qlzzdq /p 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 diq 4 m7j g:k+2wlkf(pxmagram, the current through the 6.0 Ω resistor is 1.0 k( w2k x7f:qmj4mgl p+A. 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, R2, and R3 are connected in series tb*dm0id. 9bpy 4m; aubo a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistanbm;09ad*4b. yd mp iubce 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 pww1okt tml itnx 2w 9/uor*7g1x- h;z;arallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω,zt otuwl1wwt9; xni1/mr x*k7-oh2 ;g 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 12xq7s9j h;w2y 19poi )jb:m mme00 watts and 120 volts. What is the maximum value of the ;)o wi m7 hs2pmj9x9q:j1ymbe 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 resistance of a 60 watt lightbulb designed to operate at 3 i-s bxv+s9of120 vo+ 9sof3is-vx blts?

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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 dissipat 6zfljbyx2xk4rah 89 )ing 36 watts of p zyj)h24 fb69lrx 8akxower?

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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, 600 wattn2veyyy *sy850x omi).” In nor)25yo8n *0 iemvsyyxy mal 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 folloj7 q ye.b(cmd/ i0/qbcwing resistances could NOT be produced by a circuit containing only three identical 6Ω/qcq/(d 70cy bmi.e jb 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 fo*,p1gg.:x ( xxdwyz7u3kvqflazrh ,/ llowing equivalent resistances CANNOT be pr ,gv1z 7,yl.hrk adxz3 qpx/fxw:u*g (oduced 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 connej hxs p/d5h u0p6i)oe5cted together in different configurations. If all three resistors are used in a circuitjop5h 5 6is) 0x/pheud, 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, a tota.1q7k(cgq gu )o:.oe4jaha ocl power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in scajkq.o:uc o4. h(e)ag1 g7oq eries 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 connectekltv +fw:d(- id in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is corrl+kwv-(:id ft ect?

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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 h4 2baqqryb 15has a resistance of 12Ω when operating at 120 volts. What is the minimum amouqa 1ybrq45b h2nt 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 th0n b b57st*l,bzalp:oyc3 aw .rough a 4 ohm resistor that is dissipating 36 watty wzo cls3b :5p0bl.*t ,bna7as 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 heatep3xgqjyg0y p/krmusg - tz+n8n5/3+ jr draws 13 amperes of current when connected to 120 volts. If the pr+pt+z3k j-gq5mxnn 38 gp/j 0yg s/uyrice 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 .+ ddu/oj3ca ato keep a 100W lightbulb lit continuously for +.ca3d /joa du1 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 o all4-v tkj5uy/ g65q4.00 A through a lightbulb results in a power of 24.kltq/lj v6y5-5a ogu40 W 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 *c8 a jt:1kzyizz+w9xsix owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere x yztk1*8 j+w:i9azcz 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 fr;:op2kx fp l:e m.dr6orm a simple circuit as shown to th ror:el.:f mpdx ;6k2pe 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 i);tw -uo eqk2vs connected to four resistors to form a simple circuit as shown to the rig2-)ek;vouw q tht.
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 ammeter1gs9dydp ryutdi1d5vg 0 *2.d, a switch and three resistors are connys 9v02d1 d.5i*t1yd pddugg rected 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, vfbna8 tm0i3 mw i():kan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram themvaf t308)inbwi(:m k 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 resistcogjh zbk; :-+lb9pllx9g 6uya-em9 / ors are connected as shown. cb b/-:xmg h6;l l9lypg+ j9k-u e9azoWith 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, wha f qm, vj1*auyo .3ghqpo:q2+nt is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical 1mp:+hvfqogau jo q,3* yn q.2resistance 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 cir1xc81g0aqwj 4orl-:ij1 , uyjj6c likcuit shown to the right with resistan1q cyj4j k-c,jjga:xw1860 i1lrol iuces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica;s7f5 iaths4jl resistors connected in a combination series and pt4hjsa 7 ;sfi5arallel 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 connected in a combinat4/q 4 w /aritwqu;/uasion series and parallel circuit to a voltw 4a/r;w/ua/4qi tqus age 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 aretuoy z0zup g; zx9a2s64opo4aok-3 s3 identical. Which bulb wi4a43auo tuo 36 2zozkygxp s-soz;9p0ll be the 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, an ideal ammeter, a switch and three rel.g 7iz lg bwz/95)oh0 h1jmjesistors are connected as sbhz l/1zglmij )og9ejh70 .w5hown. 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 ideal ammeter, a switch and three oiv( okvb 57r/6ng2mw resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads / rvk25wminvb6 (o7g o2.0 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,v sh0 oqa8k)pp,jaz, istors are connecz,k ,hpa0q s)vpjo8, ated 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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