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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 metal resisuzft:3o;y*7z-q ceq qtor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direq-7 zc 3tfue*;qq y:ozction 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 resistorsmowyp./t q1 qw/+pw9c are connected in parallel, the_________each resistor is the swp9cw m1ty./opw /+qqame.

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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 cauqwl3,ui c 92bkses the filament to become white hot, while the ,w2i3lcb9quk larger wires connected to the 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 arejk0a.mwsvc8 (yk:uf ( being replaced with LEDs. LED is the acronym for whifucm( ky(0ka v 8wjs.:ch 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 s7vgk3lu a 80wd4depa4z x5d3 graphite resistor has 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 new length is 1/2 L. What is the ratio of the new resistiviv7xl 3sa 4zgdup8 ad054w dk3ety 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 ok1c tw5kjsf4+n+;sl2t nl : jkf the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has rjkll251+:; c+fskt wsk4jntnesistance

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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 ofclt8g:8kar h4 the same material but has twice the diameter and half the length of wire X. If wire X has a resistance c4l8:ta rh8gk 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 iqe3mwt/p-d y8dzm.8wjv( l , L and radius r. This piece of material is then drawn so that 8 y/.v, i3ejqwd(t-dmlmzwp8 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 Edit vlyr4/3yt193 cv beoson wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a ligh 3c/39 y4r1yttlvovbe tbulb 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 s-vop9 t-0ovo)cc.h4 zlx s8alength and radius of each--o )9s0 c.zvxv4ht8s oca olp 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 connecauud9c/ir4 -xlsqd5 / ted to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is conne4udrcl udiqa-95/s /xcted 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 resistma-mgm(.up03m sh7ox ance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. Thes hg(mxmp7m-0o3 .mua 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 c7b-:1loy5rucoz pr+ dompound circuit shown to the right. The three bulbs 1, 2, and 3plr-zo7yr5: 1bc d+ou - represented 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 circuiviv78yu (k** osepnc/t at the right. If the current in all three resistors is eqsco pev un7*8(*/ky viual, which of 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 ewup4u c0-d/lt z7 s,h*ee qow,lectric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs)qhlposue/wce dw4 z0 ,tu*- ,7
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 statement+y6rqcd.*t2in bt/h4i7 np n ks is NOT true concerning the simple circuit sh.dbnyi6 t*h+7/ki4cprnn q2 town 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 lightbulbj 0zkomb9b/5muta 8aud(wz: )zy n )9xs X andY are connected in series 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, whichbn0b (xa d 9zmzu)ka:z)/owu 9ytmj5 8 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 ik8pr 2bj5y. so+*gzsu dentified resistor in 5 seconds * u o2kzps5s8r .yb+gj 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 s mk0 vb44qgu(following simple circuit have the same resistance, which would dissmg ks4q4bv0(uipate 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 d+3y91agzg e sv.zhn v3 mr+:bfiagram, the current through the 6.0 Ω resistor is 1.0 A. What is9 b1fh+z3: ysa mzrg3v.ng+ev 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, Rotwvzmv1q z 0028g*-:um ujcta y*5ip2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of poweruo:8tvq my g0 atw mjzc1*i*-u50z vp2. 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 blzykhruz.sr. 9ls72 +attery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 disslzl zrhuyr2k9+s s7 ..ipates 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 12*7zxixs(c(mc 5 bza5n00 watts and 120 volts. What is the maximum (sxna5(xzm* ic b7c5 zvalue of the 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 desiw ftn1fzxqsk2y/k/q32 o.lt8gned to operate at 120 vwzfnl2y2/x tk k8o/1 .qsq3tfolts?

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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 ojo/x15-. uyhi0a xpulh bm9j4hm resistor that is dissipating 36 wah05a-4ij/xp . u hmjl9o bxyu1tts of 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 clothes is marked "120 volt, 600 watcw g8db4mqpexevxr-9 thj 639lt.;.w67zyw rt.” In normal u9mjwx h ;-386yz9q4r g. b .vw c7wt6rexedtlpse, 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 rm56 ;tpesepz 36x,nk wesistances could NOT be produced by a circuit containing only three identical 6Ω resistors3pz5 t ;nekpw x6,6mes?

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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 cff)joh30a6j7i4c f0gb d b(j 7z:hdd1.0 Ω resistors. Which of the following equivalent resistances C ic3(bhz jah:4)f7gd6f bdd0j7 0cfojANNOT 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 e 9prm7yzc m3uo lo.038ma: ufdifferent configurations. If all three resistors are used in a circuit, how many different values of total resistance3 3o c9eu0muryf.:7azo m plm8 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 wdze*7aw.w hf.)y q3yis 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 resistors are connected in series using the same battery? Assume the internal rew 37eaq.fdh* zy)w.w ysistance 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, havi ao+9ezv wiq h0*jthk; ec7i,0ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of w+hh0ij i* ck70v e,ztaq9e ;othe 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 desig5t9 apy7a3bjbned such that it has a resistance of 12Ω when operating at 120 volts. What is the mipj 3t9by7baa5 nimum 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 flxodq-2.a bj dwhoo5vk 3hbc/19cj2 j9ows through a 4 ohm resistor that is dissipating 36 watts of power?1/j9hokvx .wbdo bdh 3qjc5co29 2ja-

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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 whendp(hdad.6-;knkur- )whtvk 4 connected to 120 volts. If the price of electricity ink -46v( h-k.kutwa)rdddhp;s $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 muc 35ou3 qz3z:xiqg pm*ch would it cost to keep a 100W lightbulb lit continuously for 1 year 33m5 o z3pq*g c:uqxizat 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 th wr9eij q2b6vle -9vp0rough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the followviel 9rbj2vp -9eq 06wing 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 watts in a 12;eb l2 :1pujzk0 V circuit. If2el j;:1bp kuz 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 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 8q5y 6/kwnjsid,bv e8- bxm1iresistors to form a simple circuit as shown to the right/q5-bx61bisk 8,w eiy8j dnmv.
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/ z cqimhui //pv)w 1qr0*zr6w resistors to form a simple circuit as s1vh pzz* /mi0u w)i//cq w6rrqhown 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 resistormcymq64ld67 te pqr:2;:tx j zs are connected as shown. With the switch open as shown in the diagram rym e 76j:tx4; lzpcq62qdt:mthe 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 thret. ;q5cls7x 8 v1j x:q9adxysde resistors are connected as shown. With the switch open as sh 9q.d:8sxxas1;q ty5 d 7xjclvown 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 batterp y+kk/d*5qi:;2z p zjv5foxyy, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammex *dy2kkojpf p :; /z5vy+zi5qter 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 equivalx /fqm35ndc): bpno* gent resistance? Assume that all wires are ideal, the battery has no internadn* g35xn)p :c qmo/fbl 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 l0tm *lhnuyg(a:(u:w,v1jfl right with resistancvh1yt(g lm(:*ljn fu wu a:,0les $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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;2k: 7p7eliimjfm6o08tiv6 tsj a1dy,y ;p pe in a combination series and parallel 0jp ;e817oefkt sl6m;ai yi vmpty,7j:id 2p6circuit 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 beloa 8 ny x.cjf/s8yx xp7,tir(n5w shows five identical resistors connected in a combination series and pt xji/cy r 5n8afp8nxx y,7s.(arallel 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, :8bwwk 1zem bz v5r+)kb:o a*hz m5p+v all of the bulbs are identical. Which bulb will be the b*zkwzp5mh : vorbbz+b8m5 1wea) vk: +rightest?


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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, adp: (a licls0 s-k2d-rn ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amm:-(krp0cd- al2sild seter 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, fdr +*s-v)dwng 9z vq97.oinva switch and three resistors are connected as shown. With the switch open azv g9 i nvnq.f9dr s-)w*dv+o7s 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 am/.. dkcxs4 svmmeter, a switch and three resistors are connected c .ds4mvk/s. xas 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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