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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 inwmx/ 0(+p) nd sbl8l jf4dqcjb-7 ogq:m2+el n the metal resistor connected to the battery. Which one of the following choices best describ(f8c7dn /j0 2+gn -lml4 xql dpm+wojb)qe:sbes the direction of electron flow through 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 par l; gbv/p:h(bxallel, the_________each resistor is t(b:v gbh p/l;xhe 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 thewgm z(ny f9 mmi)* 3to1zcqa 2i11v7xf filament to become white hot, while the la 3 mf7zi 1 2wt1(cymzoiaxm)fv9q* n1grger 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 99w yhfwgmv:8 LEDs. LED is the acronym for which one of the following chv y9m: 8wgf9whoices?

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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 c4e g teo+lcm8.7xc1tiw)z/sgross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so th c4ot.e 7+ g8tzgi wcmes1x/)lat the new length is 1/2 L. 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 rjsd/l1xjpjd1r 21/ b same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II h/b1jp1 dr1j/xrd s2jlas 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 th(kx-ncp j u(.oe diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have nkxo-j(. c(upa 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 and radius r6le48qp u5 yyylc1-ek. This piece of material is then drawn so that it is a cylinder with new length 2L. What hapy5 kly6-u yep8e1 4lqcpens 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 E0m ,z 7qkr1iigdison 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 given voltageizm,q 0rk7 g1i?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindro-f trkkl)1q 1ical resistors are made of the same material. The length and radius oft of1kq1- rk)l 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, eacf w5wc -h+hb 5o+gxyxuy o(q- rk/jb48h of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combin+ qbwu+hk45 cfgj-5br8(who y x -yox/ation 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 resistancgz/ f8 ug2suw;e 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thugg f2;s8zuw/ e 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 okrwte2 6/,;d hk lyf.circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resisto 6d.tlh 2ek,;krfwy /ors 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 tagtd 7+nhh,t(q8wh9 +cyi /xdhe current in all three resistors is equal, wh/+xg q,ani cd8h+wydth( 7t9hich 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 electric circuit composed of 5rm 6ys 0jjjp7z+5dmgy:qy,) d;do 4l .dp-oip identical light bulbs and 2 flashlight cells. Which bulb (or bulbipr y+-.zls7j 560dq y;gojdypm d ,m4pj:o d)s)
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 follo/nj*+z4 xr b lajba6pa.ji52ewing statements is NOT true concerning the simple circuit shown 2 be 4zij 5prb/+xla.a n6j*jawhere resistors 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 seriesmp sjvd. *d+3j 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 f*vs m+j3jd. pdollowing 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 qov6 .e.(bbge 4fl68zga)so gthrough the identified resistor in 5os4)lvazbgeg(68.b6gq .oe f seconds 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 tkob5;ig b po0z4lw kqlka s-+es.x9 785h4spfhe following simple circuit have the same resistance, which woulppkgb9w485l.ikbf- q zhl s a5e s47;0oos x+kd 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 through the 6.0 Ωgsnnjadw)ab.) d 5.:t a8z j)y resistor is 1.0 A. What is the power supply voltag w).dt) by8a:z saj.g5d)n njae 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/ gd kduen-* if8owi:. are connected in series to a battery. Suppn:i.kd-gwoi dfu 8*/e ose 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?

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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 in parallel to a1b *kdbfs:8 eo battery. Suppose R1 hab1fkd:e *os 8bs 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 1200 wa wm33hk /sknemk1i5;ib:r dylr+v+ )vtts and 120 volts. What is the maximum value of the current under these condi 5srh:+ em) n ;kkvmw/i1y33+kr dlbivtions?

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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 lightbulsk05 e 5xm xq9heu*st5b designed to operate at 120 volts?5e9qstu5mxhks*x 0 5e

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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 flk;wc() 0quhnw6 g;jjw*hu g9aows through a 4 ohm resistor that is dissipating 36 watts of powe9c*6kgjw(q)auhgnw uh;0j; w r?

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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 abt n*9fon*dchnr7zm 33sff:q;d1l + marked "120 volt, 600 watt.” In norm 9; ** chm1:zntnf33 +frsa7odbfndlqal 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 c/ puh1yqoe:i(q wx07o ould NOT be produced by a circuit containing only :i uh01wo( oqq/7xpyethree 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 resistors. Which of they3bqk)mlvx ):l1k / ix following equivalent resistances CANNOT be produced using all1:/l3)k xbky xmli)qv 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 ltt.w;h .xd(yn j+,yh be connected together in different ch (+ .;ty,.tdxhywljn onfigurations. If all three 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 cou9 8t r3iw7(gxijwtd7nnected 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 t g(93 r7i xdtjtui7w8whe 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 co4* 4viqb/t qbunnected in parallel, the equivalent resistance of the c 4itq*b /uq4vbombination 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 has a resistance of 1lisdh7jx lqy6)x n: ex r;59rx:gpe+82Ω when operating at 120 volts. What is the minimum amount yh97n 6j+;:x lgirx le8)xep:qxds r5of 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 is dissipating 36 wav0o4srd szd+ :tts sd4: d r0zsv+oof 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 v w1p 4bds 9rj1-k1ef;gds3od aolts. If the soadj;w4f1 d-3se1 p1bkd9 rgprice 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 105i9g ljkxm h+50W lightbulb lit continuously for 1 year at a rm ikg 55l+jhx9ate 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 powerxlccq9k p;7+z5mzh (r of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the licqz +xm9hr 5k7pzc;l(ghtbulb?

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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 +xwv7j yhv:+h, 94d q5m gygs 0lu4pvsowns 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 4 +gssml: uq hj4p7+v,vvywxhg9y5 d0 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 to forhw70urnr4n;ov u0 n a2m a simple circuit as shown to 0 r a v4;nr70hnw2ounuthe 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 batt ak ugog/j))/wery is connected to four resistors to form a simple circuit as / a/jguog k))wshown 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 are connjiyxb9)b .o 5u1f 9hpuected as shown. With the switch open as shown in the diagram the ammeter reads bb ox u 5i91yfu)9.jph2.0 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 ammeepg xn8 9k)pl3u2qk4dter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampe 38p)e k 9ln4kpxdu2gqres.
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 batterqu )wj isl q:p8tg+ +idiavif1g4c*:-y, an ideal ammeter, a switch and three resistors are connected as shown. Wuw gagi1q ii*8ds-)c4pt i + v::j+qlfith 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 rexkkmf+p1x 4 pgmm/4cef 4a 40msistance? Assume that all wires are ideal, the battery has no internal resistance, and all threm a xp41fmk4ck4p0g mme+f 4/xe 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 o 7z8o)lf) i:ugq1 tc0f:dp bo to the right with resi0:idbof7op zqot:)lf)u g8 c1 stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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;h6s )dn e,knn a combination series and parallel circuit to a voltage sourceh;ks nden,6) n.
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 connected in a comb: q 2uuv4xl j:*zwp,:xllym+xc+6skt ination serie m:pl46:,xls+x u uk z+2:yxw qt*vcljs 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 of the b 7scc7vkyqz(0 ulbs are identical. Which bulbzyskc 70 cv(7q will 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 m88gl1fnqo4r)pa2 u w, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in 8 mfn)ug2owq 1r 4lp8athe 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 amyjw 7s 3g6ss6hk gx7;fmeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere6s77sk;g 36wsfj x ghys.
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 :;l.i39cod4 g dhaybuwe5go( resistors are connected as g we.ldg3by (9oo4hc d;:iua5 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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