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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 circuituzj4hbp 0lb*6o+ m(6 afa. il7jv8 jtt shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow th0a fmuj*i 8b4.lztlb(j 6v ja7op6+ 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 paralld;6 h7m qoay3zo0(y ulgm6d2 sel, the_________each resistor iszm7y;3 0q(2hla 6o6dsdg y umo 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 wireg(tiz2j4c 6su of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coolec2 6i4zugt(sj r. 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 house8xf6u9s g;k v.qmno/vloib) c l(b(v3hold lights are being replaced with LEDs. LED is the acronym forco)i3 mukobn9vllxg(; vfvq6s 8(b . / 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 graphit(2nm*g 1vpw1;.isx eli;vs xte resistor has length L and cross-sectional area A. Iv(n s12*ex wmvp1; gx.i;itslt 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 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 .(ym 2vh6d8xgc5b, mrhwj 2qvII are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistaj5.chdqrwg, 2mhvmv6 2y b(x8nce

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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 diameter and halfqzm1u9dayoh7-c 2ed 5 the length of wire X. If wire X has a resista1dec o27mqzyhd -5u9 ance 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 and radius r. This piece of 9 2hg9x;b kn0 kb(avwomaterial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of2x hk b an9;obvkw(90g 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 m+7mffr 7yh d)fake a brighter light bulb. He decides to modify the filament. How should the f fy7m +dh)r7ffilament 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 len8gak*0lh0 mcx gth and radius of each resistol8cgx00*mk ahr 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 a batter 788ttywpm 74tme b5nry in the following way: “Two resistors are connected in series. This combination of two resistors is conne eptt8rym74 t57bmw8 ncted 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 resistance86 ls x7l9oxsp;8gsuf 10.0 kW and the ammeter has internal resis86gup; 8 sl 9sxlfox7stance 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 b; y3 blrfcu7o:iu)u,mulbs 1, 2, and 3 - fi;3o m uryulb,c7):urepresented 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 electrickm 91lqg:;6 jdq0wr4oug 3li0bf-cr u al circuit at the right. If the current in all three resistors is equal, which obf0u9 3lgo6rldjm: iwq -k1ru;0 cg4qf 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 repressn l6g+jff q81sz *sv+ents a simple electric circuit composed of 5 identical light bv 8zsgnss1fq6j+ lf*+ulbs 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 NOTbawdjixf 7m2e) 3sr9 ) true concerning the simple circuit7) brij d92 x)f3smeaw shown where resistors R1, R2 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 ba6m ;3gig 5u frnf;biq)ttery. Bulb X is brightffi r ;;mi )qg365gnuber 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 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 resmlz,h mx5rm2(lxx 8a0istor in 5 seconds once the circuit was closedaxr hx(m,ml0m5 8lz2 x?


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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 resiso/-x8 o5b uyqm,lbbb2 )sg xr;jyw-0ftors in the following simple circuit have the same resistance, whi/5b2 xr,u ysmxbyqobwgl- ) -8 j;obf0ch 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, the current through the vu// eg3 79*fq8lg8e lrmnaaw i-;dyd6.0 Ω resistor ga* nae7f8yd3rluv9- /i8/mwelg;qdis 1.0 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 to a battrxndnc9-6nn m ;- fdgzsq2b56ery. 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 ix9qb5m -d- nnzd6g2f r snc;n6s 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 resistorsxbzfq v/c4q26k q1lz6 R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, Rf66 1k bl/zcqqq4zv2x2 = 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 v:a.zwhd-iq ntnz35) 66k m staolts. What is the maximum value of the current under these conditionskt3-q h:i.zn 5m ns 6)6aazdwt?

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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 lightbdw00w5 v bcf l6uw7k cqy..fh(ulb designed to operate at 120 vol0u(kbh 5 0vlf67.cwd fcqw. wyts?

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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 throughug )yq;zszm; a3t;zlf. /m.mt a 4 ohm resistor that is dissipating 36 watts o l)m amztzqgf. /zm;uy;.;t3sf power?

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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 wvt;o oaza5901vd3f hclothes is marked "120 volt, 600 watt.” In normal use, the current in it iha05 odatfvo9;z31wv s

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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 produceis;7c qp.3u pwxv,5bud by a circuit containing only three ide.5,xp su 3uicpb;wvq7 ntical 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 resisto:xnx-q:sp:v:m39sh c2) m d.bhkqhsc rs. Which of the following equivalent resistances CANNOT be probskdxnpm h:qc 3h :):v2 m.hxss:-9q cduced 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 resistorsz;0 4vgg.dd qy of different values can be connected together in different configurations. If all v q 0d4y.;gzgdthree resistors are 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 resist5le+; +xnm whxor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical re+nlwhxem;5 + xsistors 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 .k /t9j;:dk x y-hpdt xh*n-hwead3:sresistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Whih-n dk.t:dht-39jy; xpx/hsak* :d wech 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 resiq j-x rcs-0;h25vesxs stance of 12Ω when operating at 120 volts. What is the minimum amount of tim 0v x-xce- qsshj2r;5se 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 t iwfpq6gc c3x gt+m0c4,owy-+hrough a 4 ohm resistor that is dissipating 36 watts of p3gcf0ogp6-+ywc iwqtc+4,m x ower?

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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 amperguic0a-w, t n2g ): h,y,tkbnoes of current when connected to 120 volts. If thegn ay, ,kg2 ,totu: n0)icbwh- 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 100W lightbulb litel70 i t52mnp7xo lfa, continuously n,7ief25 7xpl0almo tfor 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 lightb vy.ka ekxzub yc(v7: t5j+x:2ulb results in a power of 24.0 W associated with the bulb. Which one of.ukv j2+y vb(za7xx:y k c:et5 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 six owns a computer rated at 500 i*zm y zu*bgogs2k55.watts in a 120 V circuit. If all computers are plugged into a single circuyksz2 g 5z**m o5gub.iit 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 3efpmg-+ut,y d wc4q 4j3o6h6j1/n qal9p ylufour resistors to form a simple circuit as shown to the1-jt4 l9g6anuqe lcuh6jd3f3 ,w+ /moypp4qy 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 kp ycyz/+:; d4g2ftazresistors to form a simple circuit as shown kpz gyzc2 4/y;td: fa+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 batteryvfq)r+ mtl(bl6:m6uck 9 3rwf, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown i9): m(rmlcl6w tf3v+6qfurk bn 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, a switch and three re9v40qs7dmr4 v lvw z* o3e)oqqgb;z9csistors are connected as shown. With the switch open as shownrg vqs3w7do4qe4vzl9 mzcb ;9* )q0o v 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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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal(2/,x k py .ey2ywjh9ltad*cv ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram taj2ex.yh/*9d pk c2w(tl,v y yhe 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 equivalent resistance? ogl,r)+k7 vyk Assume that all wires are ideal, the battery has no internal resistance, and alkgrlyv,k7 +) ol 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 right-7n9 8jgp.t3buu5odh a wau 8d with resistanhddp5bna t 978j-8u3ga. uwu oces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 be q9,tu:pawl66r)n /t nib zds/low shows five identical resistors connected in a combination series azpa9si/,bq6ud r/ :l6n) tw tnnd 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 bel xx.c i ba)dh4sa+f8ci)(sabp5 hnk18ow shows five identical resistors connected in a combination sa 4bhai.8+s(ch f8idbk5pc1n) )xs xaeries 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, aujz .er4(s,x g kns(ap7e 1ch:ll of the bulbs are identical. Which bulb wilae(1x n7sg(hkpes.:4c uj,zr l 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 c;04 */oxxwq*arccn m ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetqcc oranx/*m4x*c;w0 er 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 hqm-e78: giqf are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. qfhi:-qm7eg8
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 20u,:7/j 7z6exx6zz j; qvshcfh fuo3bepm6 c connected as shown. With the scx c,zb67qj ves2o6 :uz u;/x3jz0 7h mf6pfehwitch 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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    总分:50分 及格:30分 时间:不限时
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