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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 curren 3z;e/jjmb*3x1j urb xt exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow r3bj mzu;j / e*x31bxjthrough 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_________each r.uxyu zz h )i c*6rslx/09a4deesistor is the su4a0y6*zcsr zdl /x. iehx)u9ame.

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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 filame .+r9xw;1brvvy:w m rdnt wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the ;vby+w r9dwrm.x r:1v 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 h;k z.b-w ;k yriw,.tpgousehold lights are being replaced with LEDs. LED is the acronym for wkwg;zbw -tpy. .rik;,hich one 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 length L and cross-sectional p;eq q;fz.7qv z,zhe +8mm t)aarea 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 cylpm+)vqhez;.qf,mq 7ze 8 az;t indrical 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 m4-i eii5aemzi,4u 8z sr-mhf 3ade of the same material. Wire II has twice the diameter a5 -i4i8zzhe ,rasefum-3 iim4nd 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 madeb,cd ,r *d;jfe of the same material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would hrdb,fd j*;,ceave 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 resis+7 qkq*6m5l f m.tyahltor has length 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 thi mlymk*q5q h+t6 f.la7s 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 make a brighter light bulb. He decides/a-js;xwzn8 (jd 9 yh4bh6b ii to modify the filament. How should the filament of a l6b(jx;ijh 8dnyha i4 s 9z/-wbightbulb 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 made of thec0p/ pek xdf+x,/s8 s*r15hvze *n inx same material. The length and radius of xd/rx8x e n*+n cp,ih s*01pfs5kz/ veeach 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 *7 )txbazen xn61bu.0 f;asqw 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 to a third resistor. This set s* wz a;fenqu0.bbxn x6) t71aof 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 circud rz+bwcins5k( *bp+ 6it diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readind wb+5bck pz6i*sr(+ng 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 cirjf4v8-z9 hxpr cuit shown to the right. The three bulbs 1, 2, and 3 - represented as resrz9 jp-8x vf4histors 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 current in alee3/pfils8 *ll three resistors is equal, which of the following statements mi83f/ep*e lslust 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 g b(x c-uoik/icw90 n:u :0pvla simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (v :0ipnu(k:o - x 0bcilg/wc9uor 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 conce na*cge4sw.1o--f aswrning the simple circuit shown where resistors R1, R2 and R3 are have equal resi on-* esw 1g-cw4af.asstances?


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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,lkj whbv -wty1w5p(( are 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 in parallel with each other to the same battery, which one of the following choices best represents wha(5vt k1,pyjblw (wwh- t 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 :4vf1,pof)sf;fjgp s the identified resistor in 5 seconds once the circui ,;f: fjoffs4)sv 1pgpt 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 circuit have the szrq9a(*m.dq0b scjf c- f(r f/p 0j,esame resistance, whichdmfbc 9(z*j0 0 q.j,s (sfcre/a p-rfq 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 cir,fps fwmxy3. c. x7vs5cuit diagram, the current through the 6.0 Ω resix .y 3fxvs.5s,mfp7wcstor is 1.0 A. 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 un. u(g2yzzh hd5a 94mconnected 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 is the volt94 mhz(u5z2dauy .n hgage 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 andR3 are connectlh);mt(nj gda7z 6 y8ued in parallel to a battery. Suppose R1 has ;m67jhdz(8g nayt l) u2V 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 r u, 2fj7ptrryoq(0 7hzated 1200 watts and 120 volts. What is the maximum vj,f(r yo072 rtzpq u7halue 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 wat rouz;gpol mickr/z 3*73h0j9t lightbulb designed to operate at 120 volko0 p9r u3hz3o;miz 7rc *gj/lts?

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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 7l2v i4zlwq4 a;am(pk -a b/hta 4 ohm resistor that is dissipating 36 watts of power4alk7 qa2 hlmw(-b;v4ztipa/ ?

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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, 600 watt +kz h53liiz89 yp*-gdu :tarr.” In normal k5 ru 9 t-ydi8+iazg3r p:hz*luse, 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 followo he(.qm +te8cing resistances could NOT be produced by a circuit containing only three ide8c(. eome+ thqntical 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 reb wb:))f9mq:obf9x+ol2j b vcsistors. Which of the following equivalent resistances Cf)2wb:+9c)9o:q bvxbbj mo flANNOT 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 togee6cuv6+)o ry wther in different configurations. If all three resistors are used in a circuit, how many different values of total resi)c6ywev u+ o6rstance 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 co5ucj( f- oqvq8nnected to a 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 battery? Assume the interfjq (- oq8cvu5nal 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 connected goko-72fhgzf 0x stynpcwo ,ki +8 ksn:)6:j 4in parallel, the equivalent resistance of the combination is 5Ω . Which of the follow hk 4)gjy ,gnp0nco27:+f :z8ix-w ot kfsok6sing 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 design6e:tcxv y lwh6w+ bq.6ed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would lecq xb 6wyvt:66w+.htake 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 resist dcy69l vkeozuq6;*y 2or that is dissipating 36 watts of power? d2y6ve;q9c ozu*l6ky

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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 heasa:ql1 4otqd 21yd1g9 d/g vypter draws 13 amperes of current when connected to 120 volts. If the price of e q:sg4v1/gyad2o yld p11d9tqlectricity 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 litydfm v0 a:0/vdie l(o, continuously foro 0i e0vm/ da:yfvd,(l 1 year 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 power o:dui l. ntp/n6f 24.0 W associated with the bulb. Which one of the following choices ni u.:n /dt6lpbest 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 o+ikx(2jof 8j5wy ei e)4c go-mf 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 protected by a 20 ampere fuse, what is the maximum number of the computers can be operating at t (iefox5gw-jy4ecoim )+k j28he 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 resisblv6 gkx(40h in0jzn6 tors to form a simple circuit as shown to t kl6v(znbihj6g4xn 00he 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 connected to four resistors t 02qv8oht i9i. svi4+fli:qvdo form a simple circuit as shown 0v ii8.iqi9 vv:4hlt+qdo 2 fsto 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 bp3 tz p za.;j-h1yia(ideal ammeter, a switch and three resistors are connected as shownby3-1(;ajhi. tzz pap. 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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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/ fqp-kv74k akyu+.l yd three resistors are connected as shown. With the switch open as shyklpqa +f .k/y7k-uv4 own 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, a swi1igh 6e x s o9t0xwjphmx,:,5ftch and three resistors are connected ag wmh,x,ej s:f1pix95ht 60oxs 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 resistanc( 4boj0 l*p*tks0a)talowt a,e? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors hav l0 tt)aj ,as04pkwo* l*ato(be 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 witut -h ge(,zb:uh resistan :(z,uutgehb- 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 resistors connected qz8,d6,mqrn yin a combination series and parrzd,86,qmn qy allel circuit 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 connbn.m sud0e-kwpy w*b990 .h doi;ql,jected in a combinatii.ewudoj- b 0 ns ybqk9.0hmd*,pw;9l on series and 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 xfhy;.u45 x()cu smle of the bulbs are identical. Which bulb will bxx;)(5f4lhescu.yu me 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 thn5. sjj7 7gegjkysb e(v 7x.j/ree resistors are conneys7gjxv.e jejk57s/ n(bjg .7cted as 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 a1k7 lz5lf wpa h-2uqz6k day(9)tko4 yre connected as shown. With the switch openzzh-f1wqdy7p6kka)4 lkut9ay 5 o(2 l 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 b4yhhv g-a 0(jresistors are connected as shown. With the switch opey4 v(0bga hjh-n 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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