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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, an4 qlc3i7 )v+ypvxdqm1;ywuv / electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through tv;3y1 vcy7 4)+iq xm/vulpdqwhe 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 rewlw78-.qakcyt) 3g 7f th uvo0sistors are connected in parallel, the_________each resistor is tuttc h 7wvkly0 g8 q.7w-o)3fahe 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 throu n2dvadqm, raz+)tsz96/cm1c gh the thin filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becausem cn196 ddm/s,2 z aacrqz+t)v

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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 k1hirmlb+meccy /6 zw80*a+ mreplaced with LEDs. LED is the acronym for which one of the folyam 6mhc+b+z1ckir lm 8we 0/*lowing 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 lengtn: 5f(dc6aj+wbu yz j1h L and cross-sectional area 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 cylindricu fw(jy6a5:1n + bjzdcal 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 mads b,we*q:+fyln;8xp-;nwt -uuy5y ipe of the same material. Wire II has twice the diameter and twice the length of I. If I has resis yn;*y+bw-s 5ex if; t-wuy,ql8: pnuptance 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 material but h()/z zxtuic q5)j h6wsas twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistxzsc wut z)q ji(h/6)5ance 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 mat+ zxv.g/aw;qr wv(6uierial is then drawn so tz u+qvr.x/g v;a(6 wwihat 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 bua3-p)kayznyf ee r86.lb. He decides to modify the filament. How should the filan3ker.p68)e z ayy-f ament 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 the same materq dg /4hh1-nwiial. The length and radius of each resistor is:nd14i- h qw/hg
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, are connected to a battevq t+8 3i4 i7)bpe:vpmwko4w yry in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. Thiwwpo+8v7 4v4i3bkiy)qp tem:s 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 circui.:b/z ;aeb ,ef- ofkzd g*+9h/motiof t diagram has internal resistance 10.0 kW and the a *egoh.o f+tia, b/ z :/m-foe;fbk9dzmmeter has internal resistance 25.0 ohm. The 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 circuit shown to the right. The three b f,hkne/t5ah )x h;lt:5a.hetulbs 1, 2, and 3 - represented5,ea t fht5k:.;hh xnhtal)/e 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 the current in all dyaedz-yb *-/1 ara4othree* --daza ybra1ey4 od/ resistors is equal, which 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 elect-+ld.fvl*0g3wok ezu ric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulbl0g 3d+ke voz*f.ul- w (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 statemec q)fzqbrt tabt 6xd5g6q , je)m+h;(1nts is NOT true concerning the simple circuit shown where resistors R) eagc d(b) +b1fxm q5rt6,tqtzq ;6jh1, 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 pzev3; dj 8axnbki*x. 18 h+uhX andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit element; *b8nd hi3ep81jvxuax . kz+hs 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 o51 uqrhwt2hh,.-9r 2hz uhtt the identified resistor in 5 second.2h h-wht qh2,r5tt1ru zu9ho s 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 the following simple circuit have thef:p47iq fymw :i/4xd1w; som ww.jaw* same resistance, which would dissipate the 4mq /yw1iwowfps: wja7:;i *.dwxmf 4greatest 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 thejq 4b3*u)dfa s/jjmbww,m y+ 5 6.0 Ω resistor is 1.0 A. What is the power supply fm ,bjs w/duqwyjj5a4*) mb+3voltage 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, andfkcy2*j0a9 pr R3 are connected in series to a battery. Suppose R1 carries a current ok0*jac r fy2p9f 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 resistwjcg 4cnw * rk)34iwa2ors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R34wa*2cr)ig ck j3wnw4 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 wat e4)6,hoqb dzlup. *syts and 120 volts. What is the maximum value of the current under these condiu6y,d . h)sbl 4zeqo*ptions?

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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 light;dnd.q8+ut zk bulb designed to operate at 120 vok8nu;qt+ . ddzlts?

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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 resis -iyo ym ng5 o5kf.ny*d:rnl(;tor that is dissipating 36 watts of 5gnn;:lyof (k y5o- .mdnir*ypower?

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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, 6 r;e*e :vhvcd(rhs8kpb-pa 5900 watt.” In normal use, the current in r98h a5d;hr:e (bekpv* pcs-vit 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 produce +*xo 1qvdmf:hd by a circuit containing only three identical 6*mfh qd1: o+xvΩ 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 thpiejk r4 )ga)9ree 1.0 Ω resistors. Which of the following equivalent resist9)p4j)ekg a riances CANNOT 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 l 6w,o)d dbah,can be connected together in different configurations. If all three resistors are used in a circu lh6wdod,a, )bit, 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 connectey)iytobw c 560d 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 internal resistance of the battery6b 5tc)iyy0wo 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 ,bf -.ur9megkun1z 0*unck+y in parallel, the equivalent resistance of the combin.n1kb9,zu 0fugcy rek-u+m*n ation 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 mhp9hkh sgo;ia1( 0s )that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to; 0ha kpis9og)s hm1h( 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 resia 3j)vxj)vgds2+b5 fl stor that is dissipating 36 watts of po 3)b2d5a j)lfxv gj+vswer?

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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;mtjz o1h/yt2k7 f0su draws 13 amperes of current when connected to 120 volts. If the 1z u7t0y;/shjk 2mt ofprice 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 ligh7h9jrgn0k 42-looza qtbulb lit continuously fo ojk72an l-qg 9r4h0ozr 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 throuesjs -95sgec (gh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the fog(es 5sec-j9s llowing 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 5.pnm5 jt,) 0*x1 m0op urbwzmb00 watts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20 amperew )otmpb ujzrbm *mn5x0.p0 ,1 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 connecq;q( 2ipvnru54e 0uljted to four resistors to form a simple circuit as shown to the rijiqq ne; r(0uul5p v42ght.
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 fouri*+yef-m1-po ayd ho1r:ok e , resistors to form a simple circuit as shown to the right.eh*yrm -1, fiyoo ok-pe:1a d+
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 ar +pjnlz m *k;c3:*iep-v4ywbce connected as shown. With the switch open as shown in the diagram the ammet*-p4nybkiwecv lc3pm+; j :*zer 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 switsb.-20usjt*er dqq2 h ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 20 qd sqe. jtrb-2suh*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+i7ntkt.zogs7 y: z8h wi(+aa, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0+y7s7h8ai t zz :ntg+(w.kai o 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 resistanobtpl*7 2tl-kce? Assumeb2k lt*-pl7 ot 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 td-2dt ca0;4ccxeof1 circuit shown to the right with resistanc2f14;cacoet - 0dtd xces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 k0 wktjuc. 90paw83crcombination series and parallel circuit to k0prw0u8wkc9t 3a c.ja 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 f7lf s(ob, q2hepn 8sb1p*g8rv s;jj p+ive identical resistors connected in a combination ser8bpqp hs2eov *;rlg1s7 bsj+8jf ( np,ies 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 ofwfhny 4 :bq))q the bulbs are identical. Which bulb will be theh)q4bw:n f)yq 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 ammety ,+ 8l11;t3jjfiwm i:cfbgdy er, a switch and three resistors are connected as sh bj:+i1dgy3y fj8 ,ifcl;mtw1 own. 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, jw5g:uyn48b cbx8ml v +o*s5 la switch and three resistors are connected aswo: ljglcymb48+s n5 *5u8 bxv 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 ammeteh 3uzlg n9;+etstf+ ;w6qfahc9 ms08hr, a switch and three resistors are connected as shown. With the switch open as shown in the diagracaw qmz9+ts;9h 0u3;hl8tnf +6ghsfem 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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