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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 ro*kovr)j+0;m sv7sw mesistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor andss7 w;rk +)o0omvjv*m 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 connec)pn8hy08 lvin ted in parallel, the_________each resistoiy0n pln8vh)8r 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 thr dz;-tc1a/ fydough the thin filament wire of a lightbulb causes the filament to become white hot, whdf1ct -/a z;dyile the 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 are being replaced withj v5chb;zm*52fvdf,a LEDs. LED is the acronym for which one of the follo5;z,jvb*ac m2hf f v5dwing 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 gsc7/1yh p ht:craphite 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 resistivity to the old resistivity of the cylindricatccpsh y71/h:l 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 materiali*,wv4w idho2 . Wire II has twice the diameter and twiid4o,v2i w *whce the length 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 eas7 xe9bt- n( 3u7lzjthe diameter and half the length of wire X. If wire X has a resibu7l-j e3t axz n(7e9sstance 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 ep g42bvkq1 z)olp*723 lktbgand radius r. This piece of material is then t*kbogvlb)qpg 2l24 371p ekz drawn so that 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 Edison want 8fo)v m*u98qxw sc9zw i h(uzv:5jil.he j;l:s to make a brighter light bulb. He decides to modify the filament. How sh( :. ij 5jz vmh8:w*szqfvw98 lxeo;u9lci)hu ould the filament of a 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 mad17ag8 sfit2v2lu dp4r e of the same material. The length and radius of each 7vt8sur124a f2igdpl 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 connected to a batteryggv h203gmcg) 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 og2g0mg h)cv3gf 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 rese51f;(tyeja yistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1 yjey 5fe1;ta(.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 chcia,v;l6 *vc ircuit shown to the right. The three bulbs 1, 2, and 3 - representalvh c;* 6vi,ced 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 right. If the cur9wil/5;vudg-zp dex/l ;1ib v rent in all three resistors is equal, whz xl/pi-91uw bd/gleiv;;d 5 vich 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 r syl)0b01fbjaight represents a simple electric circuit composed of 5 identical babjy0sf1 l 0)light bulbs 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 sb u)6 5f1ij-pi9gnsj0 r uku+rtatements is NOT true concerning the simple circuit shown where resistors R1, gf0supiuirk9+ur5 j)16n -jbR2 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 5m,lk v txng22+u+9qx /yrcsr X is brighter than bulb Y. Assume all circuit elements are ideal. If n lq5m9 xr skg+2,vr/+cy2txubulbs X andY 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 pas owpg9pefkj16.zv 4x)s through the identified resistor in 5 seconds once the circuiop4e9)fk 6x j.vg 1zwpt 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 circui. -k)8yc g,tj9pzn lrmt have the same resist-g l,m)tp9j 8.cyzkn rance, 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, the current th*jrsqjzq2h w,a ),9qbrough the 6.0 Ω resistor is 1.0 A. What is t )qb2*wjjr hq,sqz9a, he 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 R1mb0,cig; +zeg, R2, 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 power. What im0,g +;gibcezs 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 whehbvx86tz .4 t+ f0s48cbcsR1, R2 andR3 are connected in parallel to a battery. Su6zx.8tvb 0c +4thwsce4 s 8hfbppose 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 12 ,n:dp arm5idh/h 08i bnr;;f hbi+a 1wt/jx5r00 watts and 120 volts. What is the maximum value of /ab0jd: 5ptnd1;/h+n,r;h8wi ahix rmbrfi 5the 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 operate at1hm4n;ws nbsp 8ss2 p9 120 voltsh9s;wn8 bs4spmn 12s p?

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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 currentw y g:pp2w6tg-)hbau4 flows through a 4 ohm resistor that is dissipating 36 watts of pog2g4 hpay :ptbuw 6w-)wer?

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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 marke p;:8w-s;y2 9mto(jjf krjgj od "120 volt, 600 watt.” In normal use, the curmpj:o rkgsyj9- jot;2fw(8j ;rent 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 p:vha3 m/3gra4g9g lh a circuit containing only three identical 6Ω p/4ahvrhg933g malg: 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 followin)l x(v 11oio9qut-hw nzy*r(cg equivalent resistances CANN1 )ytq(hourxcn 1wv* (i9- olzOT 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 t g,wav 1cf7bl (j.a(lr3h fve3ogether in different configurations. If all three resistors are 3c (fah 1lfrjwe (,al 3v.7vbgused 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 battery, a totalb0 i ksvy,96js power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connecte y,k6b09is jsvd 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 resist e 7p k9vojq9:-f9pqtaors, having resistance R1 and R2, are connected in parallel, the equivalent resistan t9 7qqepvj:o9f-a p9kce 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 th;q- 7wf42 lgr.ftyso b9agi 3iat it has a resistance of 12Ω when operating at 120 vo9sy4.fr3;tqigwb oi27glf-a lts. 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 through a 4 ohm resistor that *;fdv/ .xivnrg5.w )c1hiv a6+tixaris dissipating 36 wath;an v/gcdrv r.wtv +*iii 6f1a xx5.)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 ampen4 h r24nk6noh-chmh (res of current when connected to 120 volts. If the price of elh4hoch(nn2-4nk6 hrmectricity 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 5ct9y8mpz bf.lit continuously for 1 yeayb.m p 9f8ct5zr 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 through a lightbulb results in a pow zqe gp txy0v1o:/,ub6er of 24.0 W associated with the bulb. Which one of the following choices best represe,yg o6z0txv qp:eb/ 1unts 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 co.y+k04e2 adbwqo0 wx 2ll 4fbrmputer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 am 02rx+dolw4f4ea b2wq.bk 0 lypere 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 fourmh6 ebao 4;z8a resistors to form a simple circuit as shown to the right. oe bh68;z4aam
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 :zoeptn g tav;*ti.b+.(op0a connected to four resistors to form a simple circuit as shown i *oe +z.0(np;avotatg .pbt: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 threqvnbf +w8m - 2zjiy9ka9 7sgg:e resistors are connected as shown. With the switch open as shoyk9 -zgs28mnf7v qw+b: iag9j wn 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 arhd5;fzl74x xpz ,t1z dvu0 py.e connected as shown. With the switch open as shown in the diagram the ammeterv ;. dtxxzu0 pzzh71 ,4lp5ydf 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 l9l gwak(n)1tu, m4agc6l m3z ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the am9cu l, 3gtm4lk 6 g(aln1mw)zameter 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+qud:uw0igag nv s a)s5 7p55i equivalent resistance? Assume that all wires are ideal, the battery has no internal resistancea):wgvsa570d s+ipqn ugi5u 5 , 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 right 9x9g0.lw s+q (oqunfpjen8inho /. 0qwith resistances n/0n8qqjq .pi9 l9( wh.gsof0x +n eou$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s4y;z* / j.evt-wlicuo5lu mkb,(*c8 t7cfcd phows five identical resistors connected in a combination series and parallel circuit to j 8,uu.z4c*pt/ic b5w;yltkc -cm* dov7lf(ea 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 belowt9v lafr0 6td/ shows five identical resistors connected in a combination series and parallel circuit to a voltage source.tv t d/9r06alf
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 ide89wk5 k 5erqocntical. Which bulb wie55 wrqkk9c8o ll 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 ideal ammeter, a switch and three resis-64hrf ;pv-dvvyy s i6tors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amiv4hr v6pd--y f6s;yv peres.
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 are j7d3jo eq,5q atvi:2nconnected as shown. Withdaqj7q53i o:jn, tv 2e 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 ammeter, a switch and three resistors are j/ ps bmz;qv0i,b7g 73twmtc +connected as shown. With the switch open as shown in the diagram the amm7jzbvp/b,sgit qw3;m+t 0 7mc eter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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