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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 existsuitk /34rsy.juy si25 in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field through they/ i3 i4 tssj5r.2ykuu 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_________each r4m (qg(jm +nofo0oe9iesistor is theif(mg 4no9(o j 0moq+e 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 filament wire of a lightbulb causes the .4/ y(lbfc*yn-p wgpe filament to become white hot, while the larfgebp4yl/y.w n c(*- pger 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 with LEDs. LED jk5cy 30a8+uo8jih)1 (z3wcdsigp e ais the acronym for which one of the following choic (3zc j1ehc i)pus80ow5y8+gajadi 3kes?

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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 length L and cross-sectional area Aei lhoaps-en)b- . *8iz f*si 3(ltze/. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 (b* -sp- io l ti)efas3lz/ 8*iehnz.eL. 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 twic(3 kwft0fe 0tte the diametef(k 03 f0ettwtr and twice 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 190xgjkpv6bot :an 4tsame material but has twice the diameter and half the length of wire X. If wire Xk16a: xj0p9vottbg4 n 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 resi/w 5qqwf, oi+i3ny: t z5;6ojs udw.mjstor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happeo6 isy5d n3+ q :m/; 5ifj,jozuwtwqw.ns 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 Edisong7qzbc s9 ,3wb7/( 1g fd8lrpmkxgsj 1 wants to make 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 givenx8c 7 ,bbp91ls(qj dk/s1 rg3fgmwz7g 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. Thl 4m ws* qq f63ephkfgi3h+.-wd ry s.ze5av*)e length and radius of each resistor is: 5h.shkfm6pqy*wea*sz3 d w)i-+l. q3fgv e4 r
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 batterdq) lnukf14og6( 3cbelb9m +k 9 nun5ay in the following way: “Two resistors are connected in series. Th 3a9bk) dnmb4o l+ug91 e6fqulnck5n(is 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 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 resiwhvixm bie6 ))a thka.4c)72xstance 10.0 kW and the amme amvhci)wt2a)e bh7xi)4x 6.kter has internal resistance 25.0 ohm. 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 thr0t d zk:dbug*1 a:mb jy8fy:s6ee bulbs 1, 2, ad0f 6:yasu k*b1 :gybzd8mtj:nd 3 - represented 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 t.l;wq llf 14 66ndsdmrhe right. If the current in all three resistors is eq; sd.l6qf r6dm1wnl4 lual, 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 elec.58q xi zzwh,s)eauw/tric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whqu i/z 8e xaw,szh5)w.ich 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 oxfk9*yxz-i. NOT true concerning the simple circuit shown where resist 9xfx.oy *ikz-ors 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 battervqu1p l(6ib* xhq nfz 8-tq*9zy. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected i *lui*fp q 1qb-(zthxzn6qv89n 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 resistor ipe( +by38ytvmn 5 sec8 yyp+3evb mt(onds 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 follow*.-- lw97xqa lg: xrxpcriq bh)9 -a4 dy)yhkoing simple circuit have the same resistance, which would d7ya-h 4 rq-:a ql)cdxg -b.w*xhpxrk9y)9oliissipate 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 cirpa whumduvh0tsc3jdr:efx ):3:8-2r cuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply 0: rw28hdap3tvxjdmfu- h:c 3)eur:s 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 sk kpmk hwn;3e 2gi 40q499 b)hyxml.sueries 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 the voltage across R3?;.i 0hu4keykwl 39pq)g2h9mbns4 xm k

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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, R27ss;*)+s-tpg:tb rfryi5gt h andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, a 7-sr t)thr;5 sisfybgg*:pt+nd 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 x8j :p b1lyvfgk:t dl c- 4qey4,.8kuwand 120 volts. What is the maximum value of the currenttqyu-blp c.4 x8gvy1 k,d:4wf: j8e lk 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 designer+dz5 b44s sm5m i5twrd to operate at 120 voltss4z m+55 dr rt4smi5wb?

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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 dissipating gq5n4o3 e ppd76d3n kx36 watts of powerxknq 35d6d3 pg 4e7pno?

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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 ise- f k0p2z djsqf8ur;) marked "120 volt, 600 watt.” In nofq k8 z0j)s;2per d-ufrmal use, 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 prooxefu8276mp+ b: hpleduced by a circuit containing only three identical 6Ω resistoreloxme+f2b :h pu8p6 7s?

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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 folld a+j/ qv93nc*j :pmysowing equivalent resistances CANNOT be produced using all th9 :vjqmdp+cja/y *s3nree 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 of:5g 9ul y,wjfhqe(c3f *q,y different values can be connected together in different configurations. If all three resistors are used in a circuit, hoy5w q9*q ffj: ,h ,3cyeglof(uw 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 z;nuo/hk+ hxs g e0h9fd.e9 7sa battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same banhz.ehuod9gkxh + 0/fe 7s9; sttery? 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 Rfc6r: r ma3cjlh 3 zm*juo/h-t.h 5p9f1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cor3hp jmuha /5jr mc zh.:*r3-lt96ocffrect?

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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 itfk:u721 jhg*exh(k teg l- co* 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 of wat ufcx(*h*h 2g-gj:le 7okek 1ter 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 currenw4nufln +8u-:bujs;) vd se 2bt flows through a 4 ohm resistor that is dissipating 36 watts of power -s ejb4unl8)u :d;wn ubsfv+2?

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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 125+u *2 s rm+dwykg.pvo0 volts. If the price of eodv pu*m5.+yg2w+s rklectricity 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 coslr,nt-u o6q:4 o0xmg rlli8cb,1*o.sjuyn7 c t to keep a 100W lightbulb lit continuously for 1 yen, bonlqg*ll-6sj or0ut 14m uc. ,:8ixyc7 roar 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 rery4 9dknvsk(ai9 4sah4c j m-4sults in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resiajs-nm4 hra 449csikvkd9 4y(stance 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 5abn; znmd9r o(t70k; /fpn donho3;w a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit p7dkfmbw;h3;r( a; t9oo 5nnnoz/dn0protected 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 battery is connected to four resistors trwbk tde49c)ti+7 4jinv4i r 8o form a simple circuit as nt4rvrw 9idte i7j48+ck 4b)ishown 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 coh ykf: n93 lrcxs08vk-zzkx)53s-7khdp o4f unnected to four resistors to form a simple circuit as shown8: zk y9hn-5k r 4zpl7303dvfxsfkko ushx-)c 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 three resistors+ -uluaosln *. are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am.s+nlau-l u*operes.
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+,y ,seyw3max z7k rc+d three resistors are connected as shown. With the switch open a,yr c3a,+e yx7s+ wkzms 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, acbc((x7 z0 ynushvbrl9*1a a6cog)5 ;th f;hz switch and three resistors are connected as shown. With the switch open as shown in the diagram the7cnt);1*s(5vb ar9(chcuzgh 6xfbl y0ah; zo 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 resistanc;qlcb(2q 386 pbvjo-sgi7al we? Assume that all wires are ideal, the battery has no internal res 7oq-v3alpc6g(bs wjq ;2 ib8listance, 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 , p:6z1uabro h right with resistance1oh,rza b:p6 us $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 id i. (e(l5wznvpentical resistors connected in a combination series and parallel circuit to a voltagelpzwnv5(i( . e 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 resi: on6zz7jm1ms e l4qj*stors connected in a combination series qzo nz1sj m4:l6me*7jand 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 h+wyv sp3qg7+y *s9hfyerxl+w *x-z5 bulbs are identical. Which bulb will be the briw-rxhy*gx9+7ph* sw5+y+ 3 vlz feyqsghtest?


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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 ke69vhzn *n d25psma6connected as shown. With the switch open as shown in 6s2amnznh pk*ed69v5 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 ad h s.jltb( fcph3,:h5re connected as shown. With the switch opfc3j( t:hl s,dhh5b p.en 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, andlqb7ax4i.f 56 2 9jaiy-mr. yrvuai* ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagry 5i*rjy..9-lirfvad2ia mub7x4a6 q am 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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