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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 existsp sgef+o.fls :.1lhrprpv *n j2*/,2rhg7p qx in the metal resistor connected to the battery. Which one of the following choices best describes the directisr 2 hfghrj qlx*+n7l:12vosfg .r*pp e. ,p/pon 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 adr 9+g8fvp6dgre connected in parallel, the_________each resistor is t +vdp8df6 gg9rhe 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 pvi ;m1op1 ei nm7o9s2of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain mmvso oie;9 i11n27ppmuch 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 L t2k( pvfq3:vcEDs. LED is the acronym for which one of the following ctq3:vk( cpv2fhoices?

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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 cross9p rp8c3nsgz3q (yy 9u-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 resistivityu3 ygcsz rnq(8pp9y 93 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 mate dg3 4cnk(7sferial. Wire II has twice the diameter and twice the length of I. If I has resistance R, Insf(ce4d3g 7kI 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 mat5 7oksq mh4(zwy(sq 6gerial 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 r7q(4m(o hs 6sg wz5kqyesistance 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 andsu++(dv 9)g a qvlap/f radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Wh(vvg upf/9 as+ )adl+qat 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. m)u5uf2/c gaa0v3 2z lz;vxnd He decides to modify the filament. How should the filament of a lightbulb be modified in order to mal;2 gx3)0 uazzu52avcvmnd/f ke 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 theu dr-9e,nkn90x mlc:p same material. The length and rad-0cxun em lr,pk 99:ndius 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, are connected to a batter ;ys s*wz kzcvr:kz*e4 a2d1h)y 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 resd2rsk 4s )zk*ech v:1awz*y z;istor.” 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 d -.9/ a8ou5i51tvkvuddpiioin the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading p- a 9dii.d toi81u/vu5k5dv ois 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 thyp /a)uiswjeu /ls4*ai o4,7+tkoe o,e right. The three bulbs 1, 2, and 3 - represented as resistwea eoua4 sol *tkoiius,)7/+j/ ,4ypors 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 electricq g 25yi9u(gebal circuit at the right. If the current in all three resistors is equal, which of the following stateqgb(9iyg u 2e5ments 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 knk1nd-orfq2 i6qy:2 5 idf:2 kq o 1yq6-nk2rdnientical light bulbs and 2 flashlight cells. 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 statements is NOT true co4+cvb5vfa: mo .a t ,ewv3clo6ncerning the simple circuit shown where resistors R1, R2 and covb,v.4v w6tacla35 e :mf+o 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 cjko si ,x8wvwxif-yd6u278qrc7h 9 x+onnected in 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 choices best represents what is observed? x29,-wixdf oh +87 jykwc iq8uxsrv76


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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 coulomlgrb1 i9 w,u kbg(q1vjzb;x8 7bs will pass through the identified resistor in 5 seconds once;qv b9kug(lgibbr8w, 7 xz1j 1 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 re*i2i1g skr/resistors in the following simple circuit have the same iske1i r*r /g2resistance, 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 accompa1b5 ,u)maj jaanying circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power j am5ub)1,aaj 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 resistovk2)9xw(0v rf8rp izzrs R1, R2, and R3 are connected in series to 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 voltageik 098xpz (f2)wrzrvv 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 resistorsanen6 uy2(s,hh6f1nx R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What u2y6 f nn,n1exah s6(his 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 6rhda1cr1 z l*1200 watts and 120 volts. What is the maximum va6a *zrrc1ld1h lue 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 resistance of a 60 watt lightbulb designed to operate a y:f +gg5fmtjjpw 8*9zt 120 vjm:z8fj5wyg p f* g+t9olts?

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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 5k4:/d+ptjdnis 31 ;qxsbvdw a 4 ohm resistor that is dissipating 36 watts j n ddd:s+ x5 ;1b/4ik3wpqtsvof 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 press clothes is markedd71wobgzk6sufl. f3 8 "120 volt, 600 watt.” In 6ukf3bl7fs8o z.1dgw normal 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 could NOT be produced fa0ybg4ol2 9iby a circuit containing only three identical 6Ω riao b04fgl9y2 esistors?

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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.e0l,czke ( :(ab9jef5r 9yx yr0 Ω resistors. Which of the following equivalent resistance99(aek br(xce:efy, lj z r0y5s 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 can be connectedoy.fx 6)-x lzs together in different configurations. If all three resistors are used in a circuit )x-.sfzyxl6o, 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 ton4pn.i2s hfb, 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 bp b2h4innf. s,attery? 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 Rj/ vxbxn8wnt7l 0d q3jkz53.k2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistatk0 z wj83vl/k53jx.nbndq x7nces 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 12Ω when ovih)oh 8+uass,2 a;ta perating iav2au8s a+hhost;, )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 4magu.lcauct j80e :7 2 ohm resistor that is dissipating 36 watts o c0uual:8.ca 27jemtgf 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 conn- yq 3zwlq*ee:ected to 120 volts. If th*q :qweel- z3ye 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 h2j4ql h a55f;-1mkyk a5bstyzow much would it cost to keep a 100W lightbulb lit continuously for 1s5akaql; yj 15 k2t -y45bmfhz 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 4 0)q 9gtehmwt:0vkeo of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the v0etwkh:)9oe qtg04m 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 wat e vm)t5occ0psvu*)1isgx 2,yts in a 120 V circuit. If all computers are plugged into a single circuit protected by a 20i)coc euyg,5pt) vv s0xs 1*2m 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 isw cu,(p 4t7iyy connected to four resistors to form a simple circuit as shown to ipuyy(4w7tc ,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 connected to four resistors to form a u 9 s7ctpzcj74simple circuit as shown to the right. 7czp4t 7j9csu
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 :b:kiow/rt9ku)ni 2a and three resistors are connected as shown. With the switch open as shown in :2bk ru)9 iwniao:tk/ 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 threc 0(0pc:cirmqe resistors are connected as shown. With the switch openiqr00:pccm (c 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 rechifl8x xeb0w,m 0oc, w2/4cn sistors are connected as shown. With the switch open as shown i2nibwcf0x ,8 4le/w,xm 0cohc n 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 resis.now5ihy qd 6:tance? Assume that6who :ny5 d.iq 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 circuit shown to the, i yt-v f4sh.qsnrd:) right with resis4-isrd ,) fh:. vqstnytances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fw-ym wip, ,/hpu f9:urxxc wpv h1ss1://g-xa combination series and parallel circuit to a voltage,ufhxh9: -p pwpyg/mus:/ivr w1, -sc xx/w1f 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 8wi +y2gsz6fa -5nw nkin a combination series and parallel circuit to a voltage souk+wnz- ny5 8wi2ags6frce.
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 diagramfko2y/qvd:pq(n 6u7t/-q ss) cvhbs9 , all of the bulbs are identical. Which bulyt /pq ob s:qfq6h7vkns) 2us v/9cd(-b 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, an ideal ammeter, a switch *r jdx4v jud,(wf- me,and three resistors are connected as shown. With thex ,f,jdm u*rvdj- we4( 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 a)) o87 srafts/zut3whre connected as shown. With the switch open as showa/7uh f) tr3s)otz8s wn 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 i0rl,vvjab o*2vmfd5d 3b l( wq)ym b43deal ammeter, a switch and three resistors are connected as shown. With mdy2bofm3d ,vl4v*lb) r5 qa j0( 3wvbthe 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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