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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 showo tsp.oxs*mkn- 7a,x8 wi03c nf9.fhbn, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of eleaob-s09c3n*wfom. k shp 78xtx n,.f ictron 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______5bc9zig k3c5s ___each resistor is5b9s5 ic3 kzgc 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 thir;40b, ifkqd ln filament wire of a lightbulb causes the filament to become white hot, while the larger wires co,flb 0dr4q k;innected 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 are being replacf3r,uogg 4n l9ed with LEDs. LED is the acronym for which o49ng 3guo l,frne 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 lengt low)51 s8bpcqjh5;yt h L and cross-sectional area A. Itjsyc; 85b1 l5)pw ohtq 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 II are made ofn2 3y0(*avzyp vy6abl the same material. Wire II has twice the diameter and twice the length of I. If I has resisya0bzy2p l yv6*3nv(atance 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 twichjt/,93ndgh 7iun(yl90zsgd e the diameter and half the length of wire X. If wire X has a resistance of z jni9/t7,gn dygu9dshh0(3 l 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 mat4kwoaf:j 7c- la egkjwt9-d8 -erial is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this:kaetc-8lj-4w-fkd9 w g 7o aj 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 9fp jkpjk m.7sh* yh/: 8,liqfmake a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prod 7p8f:/,ykmhjki jq*s l.p f9huce 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 matet tm--( 3zz6m 4y*eougl8 oizsrial. The length and radius (zuto-y-ml 4*6z3e8 mtoizsg 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 R, ard1kvcb srl yxry4)2/ :e 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 resistb 4dryxcv:12 k/ y)slror. 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 p l)l:7-iwbn ,qau/ qi8e p0yqaccompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. T0iqlenpq7ql-,y/wi a: u b 8)phe 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 rightoq.fmhi1u5, yd 1yybl-8wn (i. The three bulbs 1, 2, and 3 - represented as resistors in l5iiuw -fyyd1nyh o.m(q b1 ,8the 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 r dq( h 64zpmsi*5l gi(1wze o,-sb7lhsight. If the current in all three resistors is equal, which of the following statements must be (*ilwl p ,szghqemi4-so65b1z 7shd( 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 com/*9e gqob)zk j0dsj6 hposed of 5 identical light bul /6zjj*0 )gksd ehb9qobs 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 simpyej8,ts ashbr1(jlm8(cb9,x 2:ksmrle circuit shown where resistors R1, R2 and R3 ares8y(lk s 2xbmreb:1 ,, tjmh9ac8rs(j 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 areao-e* s7oq ;65hj5 k8(ser6nazfof fl 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;(r-sae ejaq5n5*so6o8olfkf f6 7 hz 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 pt,017d1pfah0sw h oowill pass through the identified resistor in 5 seconsfd 0o1th 7o1p, wha0pds 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 cin 40 +ob88 d2:kpcmwgp,zuopydb6d :b rcuit have the same resistado: 6bd,b:bg d 4my 82z+onpupcwpk8 0nce, 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 diagram, tvh:*mjc w4,,f amtw 0whe current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage ,ww 4m:mwh, vcj*t0faV?


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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 sertt,+0n51got)g yd5gxp20 bsbs gd cy-ies to a battery. Suppose R1 carries a current of 2.0 A, R2 has 0dd0g-)5+bggo 1tgxsttc pb ,25yn ys a resistance 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 ar- zcp:51+j(r pbzaeqndR3 are connected in parallel to a battery. e a q1:+prrjcb-(p5zzSuppose R1 has 2V across it, R2 = 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 volts. What is the maxiy9* s(n,j /tuzlyuh5kk3 tn4 bmum value of,594k h/t*(nybzkun s3tuj ly 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 ligh37kq6w p0h-6bhzw :yh- zstl rzh 3ca/tbulb designed to operate at 120 voshbh:y/lc 3za0--67kh tq6wzw r3p hzlts?

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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 dissipati2kdx ze6 :wc4rng 36 watts of powe :cr46 dxkewz2r?

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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 fozy1igx+fg0 0*e60 zyyzk ,b"120 volt, 600 watt.” In normal use, the cg 1gyofyx*y06 +0,bzz0ife zkurrent 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 followieb2j h4p ynnp( a*nif, h.0b/fze )j.ing resistances could NOT be produced by a circuit containing only three bj efi njn*yp/(iz.eb 2,4h0)hfna. pidentical 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. Whtl*o *w )vfluo,n6ce 5ich of the following equivalent resistances CANNOT be wt*6) eonf5lucv ,ol* 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 togetheqo2.e),s;u,y qmcz ri8w+keub(-ut a r in different con(,,meiu;wtq uk boqe. cz+rsa82)-uyfigurations. 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 resistor is connected to a ba n 14j 4tskahkzsm,)z;7.fn jpttery, a total power P is dissipated in the circuit. How much total power is dissipatezsnsa1nmz4h, .kt j kfj7p4;)d 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 connectedau(5cfii30g c in parallel, the equivalent resistance of the combina gic( 3f0ui5action 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 i.az 0ps2keo4l:vz:tupp r *;5sqkl:2 d4o deut has a resistance of 12Ω when operating at 120 volts. What is the mino 44ekz dtalou;2 z:: dsv2p. p50slu:er*q pkimum 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 amn tqou) d3-h 6(rwf5x 4 ohm resistor that is dissipating 36 watts uw(n m3od)5r6x ft-qhof 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 drcihb6k33/kc/cyy uwdh2pi( 9j o9 w3faws 13 amperes of current when connected to 120 volts. If the price of electricity iskbc9woj6 p d/33fcyiuiwk2( 3yh ch9/ $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 co0 91tpm ui99buf kr9xast to keep a 100W lightbulb lit continuously for 1 year at a ratet i9famk9 90b9p uurx1 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 cur;njv9025v 9topem:;uks u lpt rent of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents u u v5ml9eknp9s0vjot;;2tp: 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 siecjai n:c8y7 j-ng5n0x 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 maximum number of the computers can be operating at then cin 05g:ey8-ajj7cn 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 c am 3q gik1dbzrc48/9konnected to four resistors to form a simple circuit as shown to th8kibqdmr 4/3 cgk1z9ae 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 con.g57p kq*g/agk6;su c7cbr ixx*aoo6nected to four resistors to form a simple circuit arskp *6*ca7a xucb6 kiq xg75;.g/goos shown 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)k ysd7 r6ujq 8wqpb04,*r adt4befj2 ammeter, a switch and three resistors are connected as shown. With tha7 r26 ywsd u8qejp4d*, r)4jb0qtb kfe 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 ammeterrk qw +t.d7j5yexhgpu1j*71 r, a switch and three resistors are connected as shown. With the switch open as shown in the diagram tje1rw.*d1k7 qhxpjy7ut+ r5g he 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 id; d,lu+bxk5 fieal ammeter, a switch and three resistors are connected aub+,f;di 5 kxls 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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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 resistancb nf b g vt5;ky4f fd2t/rnqj.3,iw5p;e? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical r fvtb wkptgy,nf3d./f;5 j rbq 5;i24nesistance 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 ci;) ca f)h.acujrcuit shown to the right with resistanc.faa; ju)c)h ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resiu wp -v9.patl)stors connected in a combination series and parallel c9).p pvua-t lwircuit 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 connect68wad4c x8bpned in a combination series andw b8p a6d8xc4n 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 thzwuqc - rt52*fe bulbs are identical. Which bulb will be the br2-ctrf *z wu5qightest?


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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 resistors are cony g,vsf*f2:m(exm0 ow8c av 9unected as shown. With the switch open as sxmvffus0*w8 9 ev c2ayg:(,mohown 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 resistors areu(0fv yr-cbknbl/yjmy1 x 9 *4 connected as shown. With the switch open as shown ixv 0my4/ynbu*-kb cjfl 9(1y rn 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, ac hi,lfhowby. (z7hr/ s35tn3g h;t1kn ideal ammeter, a switch and three resistors are connected as shown. With the switch open ks tzhrfb /3g;n3 h(h1.t h c7i5woly,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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