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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 1s ks gk ;+ c0jg084wyd/0x3czremtxyvz5av 4the 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 thrg 0rczv3m0cjy vxtsx/1y440d+kg ;5w8s ze kaough 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_________eachlqdp3b(b*y wd 38pua- resistor i3wp-bupbd * ay8(3lqd s 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 filament wire of a lightbulb causes the f oh a)5gf8xfo4ilamen a5xh8ogff4o )t to become white hot, while 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 witn 2ln0yq5zoxa k j(y/3wg1k:dh LEDs. LED is the acronym for which on2y ygq kw 3dojkl:0zn(1x an5/e 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 4sl 5yu+p2 rpzarea 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 resistl2 y 4uszr5+ppivity 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 twaqx- 2e bqd m0(u mo/y,rhzdcn/m(; 1iice the diameter and twice the length of I. If I h,2iz0(rdm mycu; -nm/obdexqqa(1 / 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 sama- f .jbru(g/uzn,5 yyuwh, t-e 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 have a resi-au-h(btr.yu5g ju ,yn/z f,wstance 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 resistorrz )4 v wi// 5wrqcxx+vx8io1i 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 reswio1 qx+r r/ / iv48cxziv)wx5istance 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 wants to make a brighter light bulfa3kikz/ n t(l+*sfny j,8nr :b. 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 given zsk 3,ft y+nl8i n*k(rfjn /a: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 5 ,rd,ldllok+qy f:e1material. The length and radius of each resistor ,,d+ :lefllk5or1dyq 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 2:uvdl,e g(hosy2/a,hd4t6lh: w eya of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. ah(we 4,vhdyl:e2o:hya/ udgs, 6lt2 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 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 inte4m;t x1o3p.zk h wld3ornal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly ol zp1dw3k;3.4h xmto:


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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. Th6qb pz*- ql6vm:tw bg:mt:kw 1e three bulbs 1, 2, and 3 - represented as r6v t:mpwt- 6bbqmlw1:gz*: kqesistors 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 righ k/t,j)nq;r6 bsae 6xdt. If the current in all three resistors is equal, which of the following statement b/r qtxd;)ajen, 66sks 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 of8v p9u/ry8ueh 5 identical light bulbs and 2 flashlight cee v9/h yp8r8uulls. 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 ,*hpegl2;we9 : m zz8dtp lq4jstatements is NOT true concerning the simple circuit shown where resistors R1, R2 and z2 lh;:, d9gq w4jp8ep*tlmez 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 ijkg .7aagg/tgyb( gz)ef;(v/ n 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 /(zf avgkb)/gj;ag7eg.ty g(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 resist 4vbequngbdttw6)f v5 )rr)1 8or in 5 seconds once )f6)n4qgtt58w1) edvr bvubr 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 te(e:2o5b ; thdgr.zbsimple circuit have the same resistance, which would dizhg. bo(er:;25b ttd essipate 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 through the 6.0 Ω res4t2eqf/f to fr ob1m z/:br94n7vxl3d istor is 1.0 A. What is the power /3n7mvl fd2r9zorbe:f tb q4fox/4t1 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 series :.wsc/ hc4ur/h c8e (i:qtevz to a battery. Suppose R1 carries a current of 2.0 A, R2 has a it8:cu(h/ez r/ce4wcqs: . vhresistance 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 resistors R1, R2 andR3 are connected *nft* (ovzci+ in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?fi *z n*o(vct+

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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 wattsbte/5v 0 yhafq:z+cd 6 and 120 volts. What is the maximum v za6vtf cd/0+b:hy5eqalue 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 resistji1igcd:if (9h 3kg.p ance of a 60 watt lightbulb designed to operate at 120 volgjp f3.kicg9d(i:ih1 ts?

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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 36 waq-: ct2czv dy*tts of czy-t2 dv*:qc power?

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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 prelo**6; e /. ertxksajtss clothes is marked "120 volt, 600 watt.” In normal use, the cueo.*tr *6 ;xa tjekl/srrent 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 ce 6dgejp/ *(bbil v6u5ould NOT be produced by a circuit containing only thr*gdeb6ujb/ e pi6( vl5ee 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 givenk pos5x/y(ax* 3ht:qz three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced usik3/zq*ts(xy 5a:phxo ng 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 vo(8 gjb)*.+k tvqpe3y v1fmbdifferent configurations. If all thref+ v jqbg38*t(b e.k)yvvmo1pe resistors are used 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 tup0m gnr4l q75otal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors0qprgm7n l 4u5 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 connected6f8j x elq:jc/(db l-r in parallel, the equivalent resistance of-/ 6jj8q lxe f:(lbcdr 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 that it ha mli+s7 gwdv8*s a resistance of 12Ω when operati 8sldi* 7+mwgvng at 120 volts. 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 thatq(k:bty 9qj0 j is dissipating 36 watbq 0jqk9:t (jyts 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 12f++eg ag +)l57 2f :wba s/lze3xzshaa0 volts. If the pric++gh3effs +7a z alla z ):be/2gxsa5we of electricity 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 lightbulblq; 48swfhmm5v1 ed +l lit continuously for 1 yeas8fw 1eldmqh5; vm4l+r 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 0b suk8qz6miz7 ur(;:- qsgchA through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistanc 7:bzhuc;6q-0ms iur(q8 k zgse 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 at 500 watts in a 12gs*9 n 9fjz vy(dqklbj(: bh8ck-o*3q0 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum n: z*f lov((c9qj-k3njsg8qy*b b hdk9umber 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 ilo kvar -+zk(6s connected to four resistors to form a simple circuit as shown to -6kr(zk a+lvothe 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 c/kt5pao : jl alkvz0u+y78 b8s:j 1eryonnected to four resistors to form a simple circuit a/70e5 8+ v ol kz1tsya8a:ujlr:kj pybs shown 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 resis y27vcnr i r;-: 4s4fsytyjht5lh ,n7j4um4iftors are conny4- vnu j77mfy4r; t54jh s:fi4l2,cstirn y hected 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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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 r6+4 , +vhygm(pbioxch esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. mhix (6ov+h 4+byp ,gc
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 switch and three r 10g ,rpl3:fysmzx q*9in.oyj esistors are connected as shown. With the switch open as shown in the diagram the ammeter reads xni. p jm1y3*9zoq0y:fls ,rg2.0 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 b*.et d5cig)0moq* vnequivalent resistance? Assume that all eo bg0m* dc.)nvqit* 5wires are ideal, the battery has no internal resistance, 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 with h,y9w ,uqca 4qresisth9,c,yuaw qq4 ances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identica j(f2+mvvlp 3 frnl)on2bj9m+ l resistors connected in a combination series and parallel circuit to a voltage l+ j p2bn+f32l)vo mnmv9r(jf 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 connayn2v(hg:j2 mected in a combination series and parallel cirvj( n:22mhagycuit 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 circuity o6j*jv j3rk; diagram, all of the bulbs are identical. Which bulb will be the b j3yojv k*jr6;rightest?


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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 resis83 uotf hgi;j7tors are connected as shown. With the switch open as shown in the diag7 j8otf;3gih uram 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 amb )afxajyqak6h b0va*2t hi88d66 3mgmeter, a switch and three resistors are connectedqma a038gb hibdatyx6k6* 68va2)jh f as 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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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 switchco p9 qqsepb- -te694*:wxzyz and three resistors are connected as shown. With the switch openz--qtp ps:eo4ze y69wqbc9x* 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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    总分:50分 及格:30分 时间:不限时
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