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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 l)xr-,r 9ksm r vaq/px/mh5t1 shown, an electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes t9 k -vrapx/,/r1st5 qhm lx)rmhe 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, the______7k,w5 8f)k .hwvsap/wmfx d0 p___each resist k0fmw,)a7fpxk /.5vd hwp s8wor 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 filament7r*ba93bas-1 ps mpipbgj 1e8 wire of a lightbulb causes the filament to become white hot, while the largej p1 a p9sibp gbr8a1es7bm3-*r 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 arep duru3.:qq5o being replaced with LEDs. LED is the acronym for which one of the following choi u5qp d:o3ur.qces?

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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 graphite3 i4(xkjods(7gd/f qum v 3t5u resistor has length L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in hald3ud gk4tf q7vu 5(i /x(3smjof 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 /rr w n vgr:whcrr*4,*+fnt)lmade of the same material. Wire II has twice the diameter and twice the length*)n h n+ fvrlw:rt 4rgrr*/cw, of I. If I has resistance 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 twice the diameter an+ m8kmug;6esw1g8p 0zifs2ba d half the length of wire X. If wire X has a resistance of R then wire Y wou8segmp6b+g8kfs a m12 ;ziwu0ld 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 le6zlriq;a-r y s k*u(oe/oa r+*yrg*p4ngth L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this processyg4 r(oqy-our6z+k * /e;iarpal **rs ?

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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 b/ uczz4 m+4y/fw m,*4 jwbm3d)lvfsymake 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 produce more light at a give3c mw)*j ,zbmvyys mw 44+//lffduzb 4n 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 m*d w,hwx:(nii ade of the same material. The length and radius of each rw,h(id* ixwn:esistor 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 conruiimu0lr is((8xhm.wd:+s04o q k+ unected 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 set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of folrs mx:rmw0duiqks ( .+8iu4uh(+0 iour 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 diagq ooy1nxnmamwb3 rbz700h,2)rd k33 dram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The y1aq3mk2hdoxz3w)robrn n7 db0m,30 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 cirk whmanjp6)1yeq*jx6lyh / -c9-b 1 hvcuit shown to the right. The three bulbs 1, 2, and 3 - represent1pnby6kv ) he h-lhaw j-x1y9/j*c6qmed 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 thsj.kcdh*ez.bm* k e0)e right. If the current in all three resistors is e)e.km**kde . s0h zjbcqual, 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 electric circuit composed of 5 g)oh -c-zob. ,x kakz5identical light bulbs and 2 flashlight cells. Wh. acg okzz)b-h, 5-oxkich 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 crpbvlm 8h: y61oncerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistan1vp y8:rh lmb6ces?


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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 p4 gkqa31;syln-*c yn0cq su 9series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andqnqg4 9*syayc -pklus1 3c n0;Y 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 res xxc+ w*n0c3hmg yy1v(istor in 5 seconds oc 3xv+ xy*y1n(wgcm0 hnce 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 circui9 i1 0n27yuztmdbij 2nt have the same resistance, which would dissipate the greatest pom j1ny 920zud7tiinb2wer?


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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 accompa+7140h*vdt 1kw ldfk1lzdy pw nying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is th1dwvh7 4 d lkfp1lt+*wyd10zke 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 serik: w2j4r +g, iuhx,.eebttny)es to a battery. Suppose R1 carries a current.wi jt, )yn+k r:4gxe2,hu teb of 2.0 A, R2 has 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 ramlt2nh 3 6xr;esistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is t;r a36xnhtlm 2he 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 raj zh;v5o)-.kyrafr u9ted 1200 watts and 120 volts. What is the maximum val5 9;-.z rkfyoj)ah ruvue 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 designed to operqr2p9ne4mi(5xmh xm:6g g ei/l3 u0iw ate at 120 vwm iqe0r mx43l n9xh625iui:gpg/e(molts?

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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 flo+t3r51 -lzpb2wsqmewp2b8x*q *q yvk ws through a 4 ohm resistor that is dissipating 36 watts of pvykp*qpq semx8wz*rb 5qlw3+bt 2-1 2 ower?

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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, 6015ly)hk 0 h;mhfy1e h,vzj0jq0 watt.” In normal use, 0flyk)j1z myj5qh 0;hv he,h1 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 resistances could NOT be produced by a circ ja,qa9m:s-oiwqsf0t w*+pt3uit containing only o+p,wq3i- wa: 9tsa *t s0qjmfthree 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 ni+z ta1y/mo(three 1.0 Ω resistors. Which of the following equivalent resistances CANNOtn1a ozim/+( yT 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 /uuzcbn)p u i+0x8w* ibe connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can be producei*ubun u/ 0ix) wpzc+8d?

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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 singleip8bdl wd ;7* ibg7)lr resistor 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 rw 8d)bb7 ;ld rgi7*lpiesistors 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 connectfl,tustbc q zk.hypn:5 -27j/ ed in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is coru:pnf,tlyhb j5qt.k7zc-s /2rect?

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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 suc+cmxj)(necqa az pm+ b o6:91ch that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg bn9 px+cz c6: mqm+o()a1ecajof 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 a 4 n/qig 90*.kdeevbd4w tn 3 c6oohm resistor that is dissipating 36 watts of poweq.t n0d 9d4envbo6w*ckg/3ier?

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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 zlvf xj pbd-/:d;o(-g j3rcm k)li:1l 120 volts. If the price of electricity id kdc 1/m i3z-b ( -v:)jll;plxrj:fogs $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 pvjt74s9bd :o1eydnuc i 23r-to keep a 100W lightbulb lit continuously for 1 year3 d dn :-eb4ry1j u2ti7po9svc 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 t23m3vt rq(ig *iroa+m hrough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulb?3q i(3+ g t*mmrravoi2

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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)bgt z:2a,ch x65 03fjkxqdjb of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected qf ) jkdxjt,g3x:52hb60bcaz 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 battemmy1x(qt f q1-ry is connected to four resistors to form a simple circuit as shown to the right.mx1f1 t(-yqqm
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 cvfhe+ksh: 1v1 z*ds alp,v:* aonnected to four resistors to form a simple circuit as shown to the righ,dvha 1k* 1f:: p v*sezsvhl+at.
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 tx.vpj-7;w;s zcqt3mxhree resistors are connected as shown. xjv w .-;;73q xtcmspzWith 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 an sk99u5 k5lle z22f-5ub mar8swg nv-gd three resistors are connected as shown. With the switch open as shown in the diaul5lm --8zak2s kgb srw vgu9fen925 5gram 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 +/hllol 1hu)ej+/myo ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diyo)/jmu o1+h hell/l+ agram 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 /f.uc : 4gf, 8qqkx(kyqn3ws).fwiuv right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have wfukwuq8 f, k/q)3fc:yxvs4n . .g (qiidentical 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 with rex m3;wsuy: weua(lo 9:siswos3: ;u9xuaw(y le m:tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s;bwkez,a0c3/ejr m )resistors connected in a combination series and parallel circuit to a vomrz)a;bee/,c 03ks w jltage 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 *(i ic f 9uzni6ij;mr-htcy4 :identical resistors connected in a combination series and parallel 4m(injz ii f6ut:9hi y-;rc*ccircuit 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, alh2 - xa.gaa8 w7frbn3sl of the bulbs are identical. Which bulb willfx3aa- s27hab.gr8nw 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 9;wfu 9t:epnj mwmi0n n5-l5fideal ammeter, a switch and three resistors are connected 50p jfnw: w-utlmm;i 9fnen59as shown. 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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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 are0hra j)1 qg*jt connected as shotjqhrj1a g )*0wn. 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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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammew: 7vy e(lyz*wter, a switch and three resistors are connected as shown. Wit7y: zl(wy*vwe h 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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