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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 resisctc- o llw*)rmu5v6whg*k6): :y ;mh8uwboi dtor connected to the battery. Which one of the following choices best describes the direction of electron flow thr 6:8)o ucdvb*y-5c; umrmkg)hw whlowt:l 6*iough 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_________ebpuy06 /cj5bt ach resistor bc5 jt6uy/b p0is 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 filam4q 3 liw5-xznoent to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens b-ozq l3w 4xni5ecause

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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 lic )x zsso6iu8 ;liq;)pbi; n5mghts are being replaced with LEDs. LED is the abmlqss;n5;uc) 8) i6i;z poxicronym for which 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 area Awq3ebl 1kmw4 mv95l3w . 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. W41ll5me3vk wb9w 3q mwhat 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 IIyzf .pe xs7ia:4of .+f has twice the diameter and twice the length of I. If I has resis zx4ffoi :a.7eyp+.fs tance 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 materiaoxv+g(yarg5/ll :s u(ai20va rt1 : hy*x5jtal but has twice the diameter and half the len0laua o (xh2*:aa5vi5+t(jy/r1rgxylgtv: s gth of wire X. If wire X 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 resistor has len (mu x8h(etg+ngth L and radius r. This piece of material is the((m nut +hegx8n 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 wants to make a brighter light bulb. He decidesdle di 1bg-7 noxl4q*: to modify the filament. How sh1ix4:dl nb-eogqd* l7ould 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 made of /zb u:dw,rqn a 8cf4s8the same material. The length and 8za fn : bw4cur,8/sdqradius of each 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,j2-i5i 1+tj,ou)tiopxyqp .n 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 of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangem,ii5)1+pyp-njqu i ox2tojt .ent 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 voltmeterv14gkc1uf m2kmgf 4 uvs 9v3u7 in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1mu k29vgvc1743gmku u14ff vs.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 three bulbs 1, 29lxy*j 8zrp;j , and y89rx;p *l jjz3 - 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 the right. If tuk-o u ayvmt8 9)amkr( 9sb zh58yl:er 9*j;tphe current in all three resistors is equal, which of tk98psk9-r* j:he(;m bulvrtmt85zy)uoy a9 a he 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 a0qbtb74 cx pix0-: sujt right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whicx 0pic0-7js x q4b:tbuh 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 followioz-.+bzs+su k ng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have eqs b.sk+zoz -u+ual 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 wvsb*+3j5tm h battery. Bulb X is brighter than bulb Y. Assume *tbw jvm35hs+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 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 2: cb(,o dmcoxidentified resistor in 5 seconds once the circuit was closed2bxo(dc ,moc:?


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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 th1w;rkkh e *drk5yu :2*fd8)lo.lz uvhe same resistance, which would dissipate the greatest :y1 rl)wl*h*ze8 u d5dk ufro.;k2kvhpower?


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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 thet ,;a:4x2ldvfa jtwb5:q) eor 6.0 Ω resistor is 1.0 A. What is the power supply voltage V? t:j:4t 2)lqda,xav ewb; or5f


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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 to a battero9()ixr :uq jyjk zf lszex1jv4*z+3)y. Suppose R1 carries a current of 2.0 A, R2 has a re9(*rj k+l) ozv1sxeq)43xi zjuyj:z fsistance 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 4yac(vmzb2tz 07/lry resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Wb mtz az 27yl(cyvr/40hat 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 waz xsxltk c:9o.nfg7ck,7n -ot87va 0ctts and 120 volts. What is the maximum value of the current un7slzt77 c9xnkc,gvkont.ac: o 80f-x der 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 aj6u0c5:aw h jat 120 vo5w ca6 :j0hjualts?

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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 dis-uag-ii8 (lgksipating 36 watts of po -guia( -kg8liwer?

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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 voltdtuz8- 7s ctbzw)69he, 600 watt.” In normal use, t7cde 6 zsuwh9b8t) zt-he 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 circuit co4dd (kmiic 9)ontainiodi9 )cd4k(m ing only three 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 three 1.0 Ω rp;y 6(gb -z7efnpzftdi c )6;ntoc:1resistors. Which of the following equivalent resistances CAtcf-p76brtz ) n1d:gc;; zn(e o6pfyi NNOT 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 s pvhvvf 7-v*nd,/x t6be connected together in different configurations. If all three resistors are used /v v-7ntv,6xhsdf p*v 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 bat1nur ns x8hh16tery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identican6s8 1nx 1uhhrl resistors 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 connecte3q 1ven6lg ga,d in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemen1lqv ne 6a,3ggts 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 iu 3*2eba w+ltedjid2s i*8+x nt 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 kg8auisw+etddx *ilb*+3e nj 22 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 ;wggp ,70.q xu clr3wx)ryiyfy -m91a resistor that is dissipating 36 wayuyqr9,3r 0c;y1x.g-p w gwlxm ifa )7tts 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 120 vol c4eivcf* mp9i6fc; rwt3c(st155 fe mts tm(1fitp ccim*e5 5;f9s3v f wr6ec4c. If the price 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 lightbulb lit continu-t /dfhgi+r:s)a vazp5.d :sprp54rj ously fr )v:siraa5 rz-t.d+5gpp/s pjd4h :for 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 )ksh mebma: /.in a power of 24.0 W associated with the bulb. Which/m em): as.khb one of the following choices best 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 of a family of six owns a computer rated at 500 wat0upvwh 6bn gc2856ji m7r1cktts 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 tk6 1rp6nc7 ih2 cb umwv5g08jat 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; rvfu)en93c r )m mjv7fh:ty4 resistors to form a simple circuit asnc))4mj ufh;te7r vrym3f :9 v shown 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 connefms9opm a1l 0c hduye,8) m+1ucted to four resistors to form a simple circuit as +elmp9 dm f1ucu0 8s1aoh y),mshown 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 battu .7iuc u6 -g(nr6noyuery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shou-uunci(76 .on u6rg ywn 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*nhim ;ujq 9c* ammeter, a switch and three resistors are connected as shown. With thnu9*m c i*qj;he 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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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 resistoiab x kjykd43qus35l2xa n7v2dr,y g ix-92(prs are connected as shown. With the switj2ys d ,bn-73 3 x2qglpd9x2kryi 5avkiu(4xa ch 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 resistancei r,y0 gn fg(c-*-jujl? Assume that all wires are ideal, the battery has no internal resistance, and all thn0 jrgy(l*g -,c jui-free 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 w9u9x 5ctu)hrd 1hol 1 right with resistances1 oh 9txhucdu9r1w )l5 $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 in a combinattn;o2vmyxdj/pj 7y3 -ion series and parallel v-y omj;d7xpj 2 n3/ytcircuit 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 55z5qugokpkfq +k *(tshows five identical resistors connected in a combination series and parallel circuit to a voltageut55 g*po+k(f zkqkq5 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 circ qje xlehl (cww1*0k2k*1j: iyuit diagram, all of the bulbs are identical. Which bulb will be tieh(1j0 e x1*jlqwkc lyw:k*2he 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 th x8 d*4eelid-aree resistors are connected as shox 4 8led-aedi*wn. 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 are c)y 3tf/e cfrq+onnected as shown. With the switch open as shown +ryqet/3)f fc 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 resistorsbh.5 yeo.8vf9q ( /4 ehemr5m0eo4rqm.s fn xk are connected as shown. With the switch open as sh4kx b qfoe4(. mne 0he.5o89fsq mvr yrhem./5own 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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