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习题练习:.Resistor.

 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 ex9 mbneu (g;w: i.iaat2ists 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 b:wnai;(e9iug t2m. a 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 resiston k6ov.3qwl z9rs are connected in parallel, the_________each resistor is the sam6z3 9kvoql.wn e.

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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 filu m-lsca9w g7bpw*dxe5j2c5 )ament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb rem lds cwb xcg7pej9-aw2)5um5*ain 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 with LEDs.jfi e6dg4p,7q LED is the acronymgjidp6,e47 f q 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 jyo3i.jwy4tui 4 8r:pq6 s4uyhas 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 ne 4rs wp 8:6q4iyitju j3ou4yy.w 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 th gs2le 32qa:zyhf 8n kdi9yo*0e same material. Wire II has twice the diameter and twice t0ohaf2y2 esy 3*d8kl9:n qg zihe length of 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 o cw3ks( 7z.fvwf the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistan wk fzc3w.(7svce 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. Thisk4)bf*ocdnmh1, lrf h:1ns myhq54 / j piece of material is then drawn so that it is a cylinder with new length 2L. What happens to tdb) qfson4 5* nk chf: l1mh/hm4,yrj1he 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 axg woht,36c yufgb).dq*zewtf7, m 7 . brighter light bulb. He decides to modbftw t u,my *e6,c .z f)ox.7dwh7gg3qify the filament. How should the filament of a lightbulb 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 the same material. The length an:gthwiw5 j3i175clff8p n,hf d7w:p8 15h jt wifif5clgfh,n3 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 mqj v1.,vutszmb7 27bv,cc gtv, pi.3 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 resi.,7ztvbv jtcmq vm3 u,g2p1b,sv7c.i stor.” 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 7q.pb p y)xu+hdiagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly:qx7 +u b)y.php


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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 rig mnmu((am-iv(p2i w0 j2k.yc fs65ezoht. The three bulbs 1, 2, and 3 - represm25v(s(fz o.-u6i iym02 ( mwnjcepakented 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 circuoh7 z/q0lcl lgjw g:g*6mc;o2it at the right. If the current in all three resistors is equal, which of the follc 7o */h ;g cqolzlw2jgl:g60mowing 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 ze .-,neq 7ezzright represents a simple electric circuit composed of 5 identienq- ez.7,zezcal 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 statements is NOT true concerning the simple ciftvs9xyt9n v b(6:e s.rcuit shown where resistors R1, R2 and R3 are have equa6stxs.9b9 (ve tfnvy: l 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 t 2on3d kemfh8tv 7m7(3gqr, mqo a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY areqv2,8m( 7tg n3kmeh7mdr3f qo 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 identifmn/t mtba4c1 2q43sgvc e5b;mied resistor in 5 secoaq4 c s45;g/3nm mbctb1e mvt2nds 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 -;ipi5*s -wx t bwbixk( ey()din the following simple circuit have the same i-5d ybk;* pb(s txiex)iw (-wresistance, 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 cidrbt 0paz y56 w/mf2g)rcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What z2fgy)t5 0 /r6pbamdw 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 to a battery5 y*miw/e9bna . Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage across Rna9mb/*5iy e w3?

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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 am1k; xd 2bmp)i battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?k1b;im d x2m)p

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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 ra (t5bz sth)//qzbw ,vlq* h: a.6ognfited 1200 watts and 120 volts. What is the maximum value of the current underfnz qvhbio6 z/, b.wqat5tl*(hs g/): 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 tds-(+n74b aeoq ;dayto operate at 120 vol 7s-t+ dqyb;ao (ade4nts?

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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 curr n1s1o5t/-e e +uff xjigke,l5ent flows through a 4 ohm resistor that is dissipating 36 watts of powe/1ex5kl i -o,t fefnuse5 j1g+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 clowrc.0a.t+/ljcvr x n :thes is marked "120 volt, 600 watt.” In norma.wjrx.+la nc0cv:r /tl 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 resist.sx d/o c ql5-mmyn6 g *(4ke-a,tsphdances could NOT be produced by a circuit containing only three identical 6Ω resistorss6yxdgsd o.pt /-ankem 4(*hqml- c,5?

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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 2 dnm 3e5 lhwk.c9piuh790pp* cm-swmthe following equivalent resiilchc- .k m9*d 7ppnm2p5 9mw0shwue3stances CANNOT 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 o4b(r-x;cwh .vc lyv)ef different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be prow;v(y.cer- 4)l hcvxbduced?

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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, ft.zh/aasi3u mp6u- 7 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 batterm76pha3i-s. ut/ zuf ay? 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 connected i; b-dhtlub2(ot e 7mb,n parallel, the equivalent resistaob, 7b-lb; ue2 t(dmhtnce 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 12Ω when opers kvh5h68 kb6cating at 120 volts. Wha66hb s58kv chkt 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 4 ohm resistor that h.rb: z oeag e1t:w/;uis dissipating 36 watts of powe;:eh :garzo b./1t euwr?

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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 to 120 voltz+ n;xqjshc mnm /l8gll+8*5es. If the price of+ *8lz;8lhxnm+glcq sjnem /5 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 ari/kc- pb1ga lv (ba.18x y3t2q 4cqru 100W lightbulb lit continuously f1i 3atuq c48v(qk xyl/.rb 2r1 b-cgpaor 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 results in a poweruz bm/47sob 5f of 24.0 W associated with the bulb. Which one of the follo/ 7zbu5fmos4bwing 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 mr4d8r up+2. s ib6bssfjlhk4 (a3.kwwatts 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 comput u3kkw8 sdlbrh+2fb6i. m .sj(ps4 a4rers 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 contr6qhi5x5ht pj .r- 8tzp. zi313nhyrnected to four resistors to form a simple circuit as shown to th 85 .tzn3jiph1yritx r t.356q-rzhphe 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*l k9(pqxhdm. to form a simple circuit as shown to the right. ( *qxm.lh k9pd
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 thbgv zwuw-m6;h1/ qs3yree resistors are connected as shown. With the switch open as yq -mzb;s6whg 31/uwvshown 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 ammeter,p6.xcvvospy; 5 t ;nmqywls,0;y e.7 5g)ebfi a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter relvexyi of6 q b,7e; ps0cnyv;gys 5;.5t.)m pwads 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,tjahms7ji , mva(.9-i an ideal ammeter, a switch and three resistors are connected as shown. With th 9j(i.m avtmi-,a7hsje 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, why91x fwu55ewf;rk :wv at is the equivalent resistance? Assume that a9y5fefv:wur 5w k ;xw1ll wires are ideal, the 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 rigge r.o 7sq g86.cpb 6.scpvfn4ht with resi64 6q.nr.g7 g8f osvbc.cesppstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a3m h:.yu u,r3 -mqqv(( aqq:zj*yftnt/jq0wn combination series and parallel circuit t mq(t3 ar(:*ut q.zqq-m n:jj/fh yw,vy3qn0uo 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 identi95lz yw4zfjvk lbs: :9cal resistors connected in a combination series and parallel circuiwk::j l9ybl5 4zv sfz9t 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+nj ,ic watt6,6 pz5ai diagram, all of the bulbs are identical. Which bulb will bwt 5+pin tai6, c,6zaje 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 idealu34+d;d g p1w 3sw,hi)ejr)jbze,w.xwwx(ny ammeter, a switch and three resistors are connb1g ds+ ji 4wrw,,n(); 3wx)ew3pxehj ywu.dzected 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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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 bqy/)aia*q0,- bi6aoy lhg) q resistors are connected as shown. With the switch open as shown in)6*g bal/ yqoyqi ia ),h0ab-q 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 swihh0f 0y 5/n m6 ;juj-j)gcivdatch and three resistors are connected as show 05n jhhj/)ac igdfv 0uy;j-6mn. 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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