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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 re5*kmu qic0sm3n9e z. rlc,- -wtqyp 1esistor connected to the battery. ekew, m3nsctqi ymz.cl091q 5u- *-rpWhich one of the following choices best 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 resistors are connected in parallel, th rtwfs8mhkl)lg2d;ef27 tt :4e_________each resistor is the get2t w)tsl2dm k hf4rl; 7f:8same.

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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 fila qc-c;y/,fwwbjxfj.cl fexe8ey0:9 5ment wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain fby0e:9;j ,8clc/c q5fje.fxyx ew -w 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. LED is emo r8nvzp8r, ; .z)utthe acronym for which one of them nrvo),zp8;zur.t 8 e 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 g3 fq-1ia; *bnly*gw 8gcw4 : skxivu3hraphite resistor has length L and cross-sectional area A. It is to be placed iiq hig8uw-n 4gs:1v;kcybx f *3alw*3nto 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 of the same material. Wire II has twice t2bq ck27vq0ip( l aj2khe diameter and twice the length of I. If I has resistance R, Iq 20ik2a qjb2pkv7lc( I 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 buyyt8bk ) n n2r4wj5+-2da4 hj zmmox/qo5v*h ot has twice the diameter and half the length of wire X. o+ nov/j5*48h22-yjxbo5wmkt r mnz qy4)d h aIf 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. Th tl2z6l4* nxzplwzcq98i(n gk 2c t1k8is piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance olk89cpi2 4(tt1k n*2zw8 x nlgz zql6cf 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 mak-q8mycse* i z2e a brighter light bulb. He decides to modify the filament. How should the filament of a lm *8s- 2yqieczightbulb 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 kihss;+5m ; yh1fwt8c,4p ghuare made of the same material. The length and radius of each resis;k45f1myhit;+p wsu, g hc8 hstor 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, ea/ur+l: utxj as;yl* )fch of 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 tx ulruy/ts) :la ;+*fjo 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 resistancm,gm0v .0ht sce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0h,m sg 00vmtc.0 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 26ibxi 8+s2f 2j awz67x/iapkne 2som three bulbs 1, 2, and 3 - represenkxx 72sj an i oea/p622+ 2i6fmi8bwzsted 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 elei95v7a,jy peceecr 3 e r*a3;hjgj5l4ctrical circuit at the right. If the current in all three resistors is equal, which of the following statements ,pa 3a y53eij5rv*e7leec9j;r 4jhcg 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 circb t6(mtu garb)fbb8(lc+pmqds,) ,d1hln3i/uit composed of 5 identical light bulb qm+s,dcr8 6)bp a,nt/ b)b(3bmt1dilu(h flgs 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 9g1e*jyx8fg oNOT true concerning the simple circuit shown where res81 xoj*fe9g gyistors 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. Bulb 1al+udr*u +as X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel *aduus+a+rl 1with 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 id vb;9n7 hi1 p0;sy *whtm,csjgk6xb1oentified resistor in 5 se wcht7vgb6 ojsxs ;n 1m,0 9hpy*i;kb1conds 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 circx.*47zeg tzf.nbx97 fmwz: tiuit have the same resistance, which would dissipate the greatest p:xtegn zi7b 4xwzff*79.t.zm ower?


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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 th9wh w*i+0 -mk1nsvn.7cgi1bqipdzt/ rough the 6.0 Ω resistor is 1.0 A. wi h7n1i .z0 /ws gvbmn-pk*qc91+dti 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 serhd( y)0xn24ubyjg ut.ies 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 power. What is th 0uxn2)gy4 dybth.(jue 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 ll)8r gx4 wvi8andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wxl)v 4 iglrw88hat 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 7fkg m9dq 7z45a8 hilnj3 *rvbrated 1200 watts and 120 volts. What is the maximum value of the current under these co 7vqn jd l5h7rabz g9f3im8*k4nditions?

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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 rgn v k6 7jp0zh2yoq7msj5t /6lightbulb designed to operate at 120 volts?tkp yos /6n7gm 2jqj rz6705hv

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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 flowsb ;:gjoscoq((f rx0s);w9j iw through a 4 ohm resistor that is dissipating 36 watts of powwjqw9sfi:j bgc(0;o(xs;r ) oer?

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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, 9wu8ww0;vktiqz7wr.5qe c g3 600 watt.” In normal use, the cur w qgwci5kwu.0qv37 8wre9;ztrent 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 NOT be produced -r.ggxpc.wm .r.s-xd by a circuit containing only three ident ..-dg.xprmrcgs-.w xical 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 the followdwf7 k ,hwfb01ing equivalent resistances CANNOT be7bfw kf1 0dw,h 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 diffe3wofjvdix u,n qo/m3u 9x/819ojp /ohrent configurations. If all three resistors are used in a circuit, how many different values of totw 38 9vj,3m 1/pquxn/hdoo9/uxf j ooial 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 congh8j)nmwz01 t b hsx5lmm(hn*.*i9l v nected to a battery, a total power P is dissipated in1t*nlj lmxvmz 9(5bs0. 8*nghm iwhh) 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 resista0oae9 o+aqmlt-khg 4(p wf 6/nnce R1 and R2, are connected in parallel, the equivalent resistance of the cokg em/0 aq9- lf(ahotpo4n6+wmbination 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 designejv-sw: c4hp v*y*x7x/jkoh d )d such that it has a resistance of 12Ω when operating at 120 v -oxwc:* y*hs)h v4v x7jdpjk/olts. 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 througsas2 s,yi50 n;2,ciffoi h5 yzh a 4 ohm resistor that is dissipating 36 wat5h 5s 22f cosfi0syzay,,iin; ts 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 120 vo l3mb,)to / dmucf8/0rdfi*rq-;mauklts. If the price of electmurad q;mk3 ufcmr)/ti - o/fb,*d0l8ricity 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 con7z-; dowjt (.+sp ecpo(im3pntinuously for 1 year at a rate o7t .3pcpinoe mow d+(-(psj;z f $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 inj9auvl))j4 cf 4dir c0 f:ors0 a power of 24.0 W associated with the bulb. Which one 4s 0fcjr))d ivuj0l9ra4oc:fof 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 .fmqgfho i/qzl.;a8d3 ,n p,e 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 ,;/peno dhi,fam3 fqg8.z .lqcan 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 t.kr4nj2.;yzws)b8sir bq m *f6v1hu bo four resistors to form a simple circuit as sr 2s1wj 4b;s..6r )bkn z b*u8imhvfyqhown to 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 connect3/.6yuv-tb0t ,4: a b aobqkv-k2ms ngd fpfr/ed to four resistors to form a simple circuit as sv fv4-:/db2ytksptru ./g ,akmbb3aonq6f0 -hown 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 l17)kltzp p wso) *l*iammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter readsw t)ol l1pkp) i7s*lz* 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 threeycp1 jr,/uy ci*7fod4a )p z5k resistors are connected rci)/p d fj5* a1 k7yycz4o,upas shown. 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 ams( pm1/,qz:f cyhjb1dmeter, a switch and three resistors are connected as shown. With the switch op sy:qmbz(1cj 1/hfd,pen 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 e;;kbftiq*g xpn2vfm6d+3sua -8)y qc nby6z6 quivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all thra+fp;fin cs26y k y*;)bvq86 duqn6xtm - 3bzgee 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/w bsiigh q(p 78i7/xfx4c/xa resistance of the circuit shown to the right with resistancf /cxax4(b7 pihxisig/8w/ q7es $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicalkca 4j.q -os-g2z1l )egm wpl+ resistors connected in a combination series and parallel ci) -2-wc mk+lp4 js gel1qogz.arcuit 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 resistdm5s4j vzm *:0ihl 2jeev3-lr ors connected in a combination series and parallel circuit to a voltajlmi-35j2vz *hedv:40m elsr ge 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 bulbs are identica5 omqkiyd o a1xg68r)3l. Which bulb will be the brigr iyq goxd8a3m 651)okhtest?


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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 co (duiv1fx:m1lnnected as shown. With the switch open(fu1mv1xdi : l 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, auvn*p/: ;cxo+c f8 uean ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter re ;:/*cxnuap8f u+ocve ads 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, aild5/+d 5vfg ; pj5qws switch and three resistors are connecidl p;/gjq5s 5v+w5d fted as 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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