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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 0h6e;l ) ds-u fdciofsp e 3p*,aet1;bresistor 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 t i, )daoef 1 htf l-;ue*sse0d63;pcpbhrough 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 paralleugqz:- -nqg dtqop8mqeig5i (2-91 s y9ju;ux l, the_________each resistor is the sam ujeogzniyp- iuqs5uq 9 g:(-xq - q298tg;1dme.

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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 p4aeetrr 1r.a5bcu 32ik mwk)7.)v stjq9/srthe thin filament wire of a lightbulb causes the filament to ar4/ w stm)j3recu 5ebrkr1) v t9s.ka2.qp7ibecome white hot, while the larger 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 r *.wl;-b j aakob3+s8ewxt5zceplaced with LEDs. LED is the acronym for which one of the fol c a5blt.-3 w+kb;oe zw*js8axlowing 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 siun6f95a h480ri ox cresistor has length 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 the0ni9 urcxosa8hif46 5 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 mavtwybgb*qi3eui 7*/g5xyo 2x+wi y3.terial. Wire II has twice the diameter and twice the +*33ibx/go *wi.v 7iuy xg5q eb2wtyylength of I. If I has resistance 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 has twice the diameterdz:kelm,.8 sc9p ea)*k6j d sy and half the length of wire X. If wire X has a resistance of R thed s je)96k8m.yp z*ldea,c :ksn 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 pieczkes/.g3 9z5wi4t i6kdr+wr be of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of tk9rgkz+zdri/ 4t.5 ew wb63is his 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. +i()l).zzlwd kyl4nlHe 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 g z)(yn diwk+l zl)ll4.iven 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 red*qtm8fag; g5sistors are made of the same material. The length and radius of each res85f g*tgdamq ;istor 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 resistor u*y i66zmkuz22mcuo, s, each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected inukcu*2 zuz66mmiy o,2 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 aca.ptlr(1j h9r ab5baj7l (x5jcompanying circuit diagram has internal resistance 10.0 kW and the al(9 a.tj1jra(x j57rbpb5 h lammeter 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. Ther 5g0fsdd)0w3 te.m /hxyt tq:boaj(9 three bulbs 1, 2, and 3 - represented as h9 )0/ qy0:detdmas ojt5xbg3r w ft.(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 eseiatkexzr; t9/ + 1y: 4x;0bu4riihrlectrical circuit at the right. If the current in all three resistors is equal, which of the following statements ;zebi49i ky/xu t+;hserxair t:r41 0must 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 n1b*m/ +rg/ qvv,)tbgpu- gvp a simple electric circuit composed of 5 identical light bulbs and 2 flas,)rgg b q/m1t*v+-nvuvpp bg/hlight 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 statemenwr pa t* :nvq:j*4.ccks54mdd ts is NOT true concerning the simple circuit shown where resistocqdwm4 skrn *c5 t: 4p*d.a:vjrs 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 z5jo-xba tb,ran-91 wa battery. Bulb X is brighter thb,ra9-j- t na z5xow1ban 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 the identified resistonvrpe+b5e q b (i7o4/xr in 5 seconds once pb( 5/n b+e i4xorvqe7the 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 tiz ;jyxf /ds2 gdi9e/eb-u. )ahe following simple circuit have the same res2-.jgzuf9xyad/ )ei id/be s; istance, 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 fhg8j6 ;r23 cdszrz4h circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. Whatrd8rhh4jgf sz cz 6;23 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 R3g8ku5y(- txns are connected in series to a battery. Suppose R1 carries a current -st8yn5 xk(ugof 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 conn asak)hj, o/a4ected in parallel to a battery. Suppose R1 has o4sa,)jaak/ h2V 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 watts and 120 volts. What is the i6g 9/(sf7umf zfe2ef maximum value of the current under these condit 6 eu(fe7fmfsf2/9 zgiions?

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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 d4j:tzl knf5k1 esigned to operate at 120 volkf:t lk 4zjn15ts?

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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 flxvr+6:le4uqmk .+yq nf7 -y4t 2gxoulows through a 4 ohm resistor that is dissipating 36 watts of poke.+g fm -42o76r+nx:qy vtu l4lqy xuwer?

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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, 600 137g hjbc9ry f)m 0iiswatt.” In no0937 mhbciyf s1i jg)rrmal 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 producev/l;i .q xa9n.8o(z tozc6rh zd by a circuit containing only three identical 6Ω resistor6zqi.(/8z h ;vz rnxo9a l.ctos?

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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 ,ny1ay6m3z hyΩ resistors. Which of the following equivalent resistances CANNOT be produced us h3y,yazym 6n1ing 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 diffe+wp;j iwe io6:rent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of toeipj+;6: owwi tal 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 t0dz 5oz 38sgzmo 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 connectedom8 zg5d03zs z 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 iaxxei883ng2v +hv x 7cn parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is cor8 ex7c ghx38 iavnvx2+rect?

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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 ox b k6mu a jsby3 dg38pi/4s9;1g,eghqperating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg gsh ,e9b; k/d341ax6y83qi ugspmgbj 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 di8hdt86 i:ej+ds l zw8dssipating 36 watts 6 zl :8itsjhdded+8 w8of 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 i 1x2s6n 9ybrhto 120 volts. If the pricehby xr9s6n i12 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 conti v2 .yiiv1u+*4ttzixojsu r(ri +(j 7znuously for 1 yea. i*z+v+jj1 rz(ty u xisi iou4t72vr(r 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 lij(-if-6giaj bghtbulb results in a power of 24.0 W associated with the bulb. Which one of the follj-(g 6ajbf-i iowing 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 watt 8xc;a+qtve m*s in a 120 V circuit. If all computers q8*; tmex+vc aare plugged into 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 connect8 f8n9 jxpayyx7e+-yf ed to four resistors to form a simple circuit as 8f7yx eypf9-j axy8+ nshown 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 connected to four re)/0iyisi+g r whzr;- wsistors to form a simple circuit a /iy+wgi hrs) zr;-w0is shown 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,o c(;ru0yr9p vlj)y7d a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rey9pjd yo(;c07 vr )lurads 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 resistors are conn-0ol,(uc kvgf ected as shown. With the switch open as shown i, 0uvock (l-fgn 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 swigg1p k *:cq+uvtch and three resistors are connected as shown. With the switch open as shown in the diagram the a pg+ :qc*ug1kvmmeter 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 circuitmd:2-z+z, ki kybtvp1 shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical rpt,k- 2m:+ kb yz1ivzdesistance 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 right with re4xxc:f:5w :wqn w futh. m:w:fsuw tfxwcw::nq.:f: hw4 :5mx fistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cb z3+axx zaa)qefy.67 onnected in a combination serie yq)7zx3xz6abf .+ aeas 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 combinay 1,d.sks+tcq qhc8xulmz 1k8c) d)s;tion series and parallel circuit to a voltage8u) d sx.dcctz,1 +qk8)h1 lssyk;mcq 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, alt; v)jlnii,3 ql of the bulbs are identical. Which bulb will be the brigj;i) ql,i3 vtnhtest?


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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 three resitl9jv 7 q5d+kvstors are connk9vt+j l vd57qected as shown. 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 ammetermr19a.yv nw 6d( 1uxuv, a switch and three resistors are connected avm yduw1a9x(.n6 1urv s 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 ammeter, a swipju 2ck dz (/1pn5v.m0j.b ecktch and three resistors are connected as shown. Witmenuz c pb(dkjkp.0cj1 25v/.h 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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    总分:50分 及格:30分 时间:不限时
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