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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 currdmn3a8 ddy48 .dirs6m ent exists 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 the interior of the residyrdmd.n d4i a638m8 sstor?


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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 con;0kn:y oz sndi-r-z+z nected in parallel, the_________each resistor rn0 zz-+:dyzn;soi k-is 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 m85gjr-tih1v the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connect8 -g1 5jimrhvted 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 i jtsc w,x c8 yvs 8ad/myzv3++b+o;c9ms the acron93d8/csym++c ; ybzxmv,t+vo wsa 8jc ym 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 resistorxo,;qj3hr hboks jz, 9i,,zl / has length L and cross-sectional area A. It is to be placed into a circuit, but it firh9,o ,kx;j j,io3qh/lsr bzz ,st 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 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. Wiy h5l77b p5nfpre II has twice the diameter and twice the length of I. If I has resistance R, II has pynf5l7pb 57hresistance

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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 twicx/ h *ijd*.bsve the diameter and half the lesvb .*x d*/jihngth 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 length L and radius r. This piece of matery ywxg q( 0hf/t3zq7q;ial is th wqq z 0t/hygyxq(f;73en 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 wm vzlq7n ea59 a1cb;g:ants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to mbq;gl7v5ancae 91 :m zake 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 +w2s 4 haoxs6k:hrd;l-ltb; zare made of the same material. The length and radius 4wa:x2lr-ss;k+6b; hl h ot dzof 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 v/wt( zhyt( *aof 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 of three resistors is connected in serieatt(*/y(vh w zs 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 ierb 4yp-c4 lwfb2z*n33jo4l4x a ke /znternal 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:4ozc/bkwnxz2 e43a -rl* e y4jb4f p3l


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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 /p:- azd cot58laape ;three bulbs 1, 2, and 3 - represented as resistors in the diaap8c-/po;t 5ldze a:agram
- 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 05:zpc dqk+ 4;kxo;il +d sc0jrmpvc ;electrical circuit at the right. If the current in all three resistors is equal, which of the following statemenok+r:cjxpc;p0cdv5;qk+m z l;si 0 4dts 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 right0 heba8u+:t-rtk ; w*aouyhoj ;,n n/a represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (ootk h0jy*u-/th;,aa+ eb ra8uonw n;: r 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 conck5iw ia0 jpuf.:s 8h2tse,x.lerning the simple circuit ufap s8k ,.lie.jsxi05wth :2 shown where 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 series to a batti z.h-jr iyr/w(s * tt-9jnd1hery. Bulb X is brighter/z*h -jryhi j.itt- n d9(wsr1 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 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 tbea n25 khv;(/k arq9yhe identified resistor in 5 seconds once the ci;kbaq2h5(a n9vryk/ercuit 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 cisoh,km v8(p+z rcuit have the same resistance,km,v (s+hoz8 p which 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 circuit diagram, the current through the 6.0 Ω rek5ql.2:izxjjt p1jx 4sistorxj512 :pxlji4tkq .z j 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 connected in series toof x9cr 5-q5u igx51ze 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 v9 foi5uxz5xe5c gq-r1oltage 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 paralle*h8,+s4 gwh,ucizhfdlwh(m/ .m q4r:cpy j4 n l to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in Rcq4 zyh*f4w/hls,w n p8uh,(hj r c.4:md+img3?

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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 jm1 ag/d9gf.wr v ja jzp +7q*q9:7hj;i7q lnewatts and 120 volts. What is the maximum value of the vhj*9e9jlpqm z7qjd1 .q:7j/; i aagrw7ng+f 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: m8wbds 2rf*dt lightbulb designed to operate at 120 vol28m*:dbwdrf s 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 dk paj *r+en9)1 br8auhissipating 36 watts of powe*+an9e )hjpb uk81arrr?

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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 s,-8 p- hdicvcclothes is marked "120 volt, 600 watt.” In normal use, the cu cv-s-p, ihdc8rrent 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 cii: s:d*di*f1f 2cw1hejv( qbm rcuit containing only three identicalvd* jbid 1::m(wf ecfq2*1ish 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 thxeu,6fqund-i5c ) qx, :u8mmublbfx 6u7 )i .se following equivalent resistances CANNOT be produced uses:u x ui ,ulm)7 8mu6.5x- bnicdqf),u6bxqfing 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 dif/ahpr *e ncnz l7:f gwwk-l7 2y1o-h,fferent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resis-7 e:a*r 7 1cy2wwlph-of/ lngz,kfhntance 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 totm9dpr vf: c5ya r0rd:1al power P is dissipated in the circuit. How much totalm:d0frvyr: c1 ap9rd5 power is dissipated in a circuit if n identical 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 connected in paralll/gu5u ufgme 4ojo:u8bl 4lcg8+ - z)nel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the res gg4ll j:n5-8gb4uu z)olc8e+mfu ou/istances 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 desi4 h;bhq/mgni,gned such that it has a resistance of 12Ω when operating at 120 volg im,/;bn qh4hts. 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 that is dissipac:)dwp4 mb d0fting 36 watts of powdf mb4d0w) pc:er?

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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 1pvsg.t 3j+ k ) w2vfb7uof+3sf20 volts. If the price of electricity issvwj32+t.b7v fups +of 3f)g k $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 co2tt b4beo) r04 fgtrar f4*rj9ntinuously for 1 year at a *bt o4)r9gre04 rfbt4j 2atrfrate 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 3h jghn ij/07meq4;iva lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices beqij;gh 7/ 0nh4vjim 3est 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 ofiewz eqjp tqm r3j1*t6qnv+. ;:z cw(+ a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged j6q.3i+:;t+qzzjeq1w(v pw tmen r *cinto a single circuit protected 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 to form a simpluml8dzmu :; 7ie circuit as shown to thel 87miu m:dzu; 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 batte1 zc9n(:(eecm+(d1cj meo psery is connected to four resistors to form a simple circuit as shown to the (91mpsco+ejdee(e1c : nzcm( 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 am1 6a9 bfutfe slvbzb, n*6+/nbmeter, a switch and three resistors are connected as shown. With the switch o6f bbbazv+ t*l1 6/fsn,benu9 pen 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 resmt,u,u:gd 1 u 42id qpccr+0iristors are connecte2 dc1rgd i,:,c0 qu4p+mr iutud 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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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 switc cq9fxf6 7d0fp p-bx.lg/ ati2h and three resistors are connected as shown. With the 7/cf6t g.2difxp la9p-f b0xqswitch 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 resistance/kr,/a mw1 zng ds4*br? s/ az,dnkrr w mg/4b*1 Assume that all wires 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 circui;* gkv;aiin d)o,nev 5t shown to the right with res5egi n,k oan *;vd;vi)istances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combin;, ;irng rs9ggation series;nrsrg, ig;g 9 and parallel 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 connected in a ci ad9rr- .3rxtyq p4t49df,t bombination series air.rbyt d9r4t4a3 q9f d,xp-t nd 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 bulbs are identictgl b c;iuxs(z7c3k87al. Which bulb will b( slgb t87xc kc;7iz3ue 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 batteryhiph59d*m *qp, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th9pdhh *qmi5p*e 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 b ; r2/ludnjp(25j u+unttny: switch and three resistors are connected as shown. With the switch open;nj bpr ud+:uy 52 nt/ult(j2n 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 resishlk)nq.1tvbcvjdu; zls637 hq3,t) ztors are connected as shown. With the switch z1vt.v scq b3q; )t6uk )3, hjlnhzl7dopen 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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