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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 circuik7z6dfe ba;f* sj)husl-u,q1t shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices bef-6u7js sah*z)l1fbu; dk,eq st 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 res0, z, rd:mn7)pian fxristors are connected in parallel, the_________each resisp,r:rfxi znn)m7 a 0d,tor 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 filamen3bee5xoa7+) ,za b) oxn+mesxt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the liob +xb7oxe xm)s+a3)e a5nz,eghtbulb 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 with LE,5z52y5zofxn 9yn ouh (mj+lkDs. LED is the acx59o+ zj zyo,nnlh 525um(ykfronym 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:ol :n )w ftn/gt;v,v:i.zg0)nw r hbtsl0fh7 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 resistivi;:. h0 0lf :rv fw/7tn :gn)ti) gwltns,bhvozty 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 twicpdb j+k a(,7kue the diameter and twice the length of I. If I has kjuak+ p,b7(dresistance 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 has v)5x8mo 7p yorfks/5utwice the diameter and half the length of wir5 7o /y8pv5srxo)mf kue 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 and radius r. This piece of materia2 m-.-5s7umr cxzkipzkb f*8)dukz m (l is then drawn so thati(z7-mp2 -dz rumxu5 kk*c)zbsfk.8m 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 Edisgcqnjww1 ;a/es6k3ra3 x,a1jj ob- *s on wants to make a brighter light bulb. He decides to modify the filament. How should the filament of -ka3 j*j3 ;qjwnc1waose /gxar6s,1 ba 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. Th 2stqeho(y ++te length and radius of each restq (oyh+t2es +istor 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 , u, kh1 i0pprvg4;iwuof resistance 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 set1gi wpp,u0, kur ihv;4 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/v/zmnl0) ux0vt h9d2a5 wke istance 10.0 kW and the ammeter has internal resistance 25.0 x9m0i /2)dt0nv5eku vh wlz/ aohm. 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 bpx 7+ w2ujg8qkvluwlugygtgd).(:; . ulbs 1, 2, and 3 - represented(gw gqkly) gwupj:u.u2.7gd tl8 xv+ ; 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 circuit at the rightgq he0w,4yq *o. If the current in all three resistors is equal, whe 0hyo*wq4gq ,ich 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 electric circuit cg h27bmg .(*fj9iilvtomposed of 5 identical light .(lmtibg ig*v27h 9fjbulbs 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 ;t2 mj yn (iaaan5; n8qurslqq7g)0m4circuit shown whey i 8g0sla7qt;4 (m;nna5mqq2)aju nrre 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 battery. hq)mtxji0fq -d -.vp7hju5v 2Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY areq.h it-)5pjvhqm ud-j7 2v0fx 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 throuzh m/lbo*m1p8d) io+g+i chv.gh the identified resistor in 5 bv1zh +oi* gd.h+ pc)omm/8l iseconds 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 simp nhb+oww ;znb 2p)/pq:le circuit have the same resistance, which w )bqph o+ww:pzn/n2b; ould 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 diagra.) c / 0kmji-hxr(ph2fjpjk/l m, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage jkfp/i.-jpjk(xc2mhh /)0rl 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 v/b/px4 5nmxga battery. 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 gbx//mvpx5 n4is 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 pbcbsab/7 -io6:,lyq 1oxid* d4 vjg* narallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is g,4d7aoc-ixvqis* *nd jyb 1bl /b6:o 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 coim al0vlq i.jhv+8 -v(bl is rated 1200 watts and 120 volts. What is the maximum value of the +hbi-.0vmjql8vl v a( 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 re jz2+yyqbjz*q eh6q,/sistance of a 60 watt lightbulb designed to operate at 120 volts?q,zyez+ b6 jyh2jq/*q

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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 t 6,5q rmpuf5quhat is dissipating 36 wau,rp5m6qu 5 qftts 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 tl(x/g 27 :t)t0a xwqmdafw1dmarked "120 volt, 600 watt.” In normal use, the curred d)wq0tta/:(2xm1 wlfaxtg 7nt 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 6ipi;: vhxs2jn/:x kk-msbw+p 3m3ot NOT be produced by a circuit contah-mpsskmk: pw3x;bv 63 j2/xitn+:io ining only three identical 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 resistors. Which of thl.a f(vr j)l3ge following equivalent resistances CANNOT be produced using all three resistoljf r) (.lgva3rs?

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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 conn8tzd9+gtvcww7 p v:e 1ected together in different z1wv: 8pvtd9cgte +w7configurations. If all three 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 resei0lt lq /)j2zistor is connected to a battery, a total power P is dissipal)q2 i/0tezlj ted 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 resistance R1 and R2, are connected i/r 5zy 2alkni cho92cq l3nor)4k6 ye v/+je6pn parallel, the ljoly5e )krz4n 6r 3knv /ae y+cc6p 9iq22ho/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 resis 273k,4dh3s+jo1u ocj9 us4 f jetwu ;1axxasqtance of 12Ω when operating at 120 qc djw +9jxx3kh472 u,s4ofuj ;a1oea 1s3 stuvolts. What 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 throug)391 nrloga ekh a 4 ohm resistor that is dissipating 36 watt g1)e9n kl3oras 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 heater draws 13 amperes of current when connected to 6(k2 q.fbzx+ (vvf ktg120 volts. If the price of elxq+b gk(z ft2k(6vf.vectricity 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 lit co3)sc h2b k o:asm+b7kq oynz;-ntinuously for 1 yebk3+ ssam zko2;nyc7)q b-ho: ar 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 u.chwyo/ 9n9z A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of t ou9/ynwcz. h9he 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 fami;r9 (2kw+lazmubm5 ztly of six 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 fuse, what is the mb2tw9ukm+zz ;5l ma( raximum 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 sie*jcqh 19+vgpe-i z7kryes5fh 0 z+ zn*/y6pymple circuit as shown t7vy* yhsegjiy5+*fr+-hznzc 6peep k0 /z 9q1o the 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 to form a simple cir b2t-i1ufj((7vbfahhcuit as shown to the (ahujf1 vbb -hit27 (fright.
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 a/guzjry/ t(cr0nc)4s mmeter, a switch and three resistors are connected as 4g t)c rzun yrsc//j(0shown. 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, an ideal ammeter, a switch and three resistors*hid 4sksc+ q( are connected as show 4( *d+siqhkcsn. With the switch 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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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 th iqce2 1tufyjby7o.7: ree resistors are connected as shown. With 7:tjfoqcyy 27 eibu1.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 show ewfg o;b3 az/+q(qbc4n to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistb(oz e;g/aq + b4cw3qfance, 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 rf*o *vpaan fmpv:k;8dl6.s n 3esistance of the circuit shown to the right with resista na ofam;skv .8lpfpdn6**v:3 nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 i 0- p)z)wnelkp-ckic k-:o.ofdentical resistors connected in a combination ).oc:kow-)kkz 0f-le cpni -pseries and 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 conykg h7f-jqr 1((-mbs unected in a combinatioqm 7g(fb( kuj-rsh -y1n series 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, all of the buragw4j( . icerf(+fn* 9xdm0z lbs are identical. Which bulb will be thec9jrmenz(a x .r wg0fi*+fd( 4 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 switcnh*)nh ,zm6cq u 6cwg5h and three resistors are connected as shown. With the swiq5 nugnchh z6,6mw )c*tch 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 j)xvy ,kkl 3bvf ;1-ejand three resistors are connected as shown. With the switch open asxyf31b vk)evj k;l-,j 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 ns bn y;iz8es512 o3yrswitch and three resistors are connected as shown. With the switch open as show3ys bnno 2;zei51ysr 8n 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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