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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 electrikn0 sqe x3nv n 21)7yhzee8p+cc current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow throu3 +k1v qee7 nhe8z2x)ny0npscgh 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 conn .(.agejm 6uzmected in parallel, the_________each resisg(m. .6jm zauetor 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 the thin filament wire of a lightbulb causes h+(6ekh6 cjt1c4mkzts/,nc nthe filament to become wh(ej 1n+ cnk6thmt6/hcz4k sc,ite 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 hourogvu*d j mw, nyig651w 2u+*osehold lights are being replaced with LEDs. LED is the acronym forn6wwim,5o*vg y 2+ do1*uujrg 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 resistor has length L and cross-sectional ar / irh oh5bn---ggi.bxea A. It is to be placed into a circuit, but i.-5r/hixoi bb-hgn -g t 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 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. Wire II hasm,;,ar(n cd je twice the diameter and twice the length of I. If I has resistance R, II has ren;(d jr,c, eamsistance

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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 twkzimlc6fx/ q.x:6/tvl0.b xg ice the diameter and half the length of wire X. If wire X haltkq/l.mxcbg6 x :6ix0 z. vf/s 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+ d5w6jkl(8( * yokcd *gjt qyhi6qp5p resistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the 6* p8kd(lwcdj i+yo kjth5*ygpq(5 q 6resistance 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. Her1j0+t 2oc vs.m( k-zhh b;bpb decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb prodbk - bpr(v. hmb2s0 z1;hotjc+uce 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 t)a9u28pro xw yrk/c+isj3e*bhe same material. The length and radius of eac*y +xksw b3rrepo/ic u a)2j98h 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,q6ud+wel(s h-o3 uk.z each of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. -ku 6lheosq.3(d+z u wThis combination 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 ha ibg 0uaqtzq6h 8qcxwn3)3fr,9nq 7l(s internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter readrq n6,z8xhl ncg(aq33 )0wub7 9tifqq ing 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 bulbs xir.x /xahf**e2zd b 5 n2so-p1, 2, ax*hnpa* rx/d25. xisz- o 2fbend 3 - represented 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.t6k xhe9a( + +6zgjgrs If the current in all three resistorg x g9+a6th(r+jkez6ss 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 repres3qap:jre r2 r+ 92rnhyents a simple electric circuit composed of 5 identical light br +9r :qphnyr32eaj r2ulbs 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 statemen- uhtd g , 5*rtls .)-xjd;busvwohk43ts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistancesd4k *-v.5o3lsxrg ,d)hu-t j s wthbu;?


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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 battery. Bxnregp)k f a -m)t(b-(ulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with nk ()rtpg -af-()bxemeach 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 identifi jpizvdrxtal6me-3+ --4e*s)qw*zu m ed resistor in 5 seconds once the circuise*m + v-)4 6xte*zrwqd mlaj-upiz-3 t 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 pcvu .ss8i9;b resistors in the following simple circuit have the same resistance, which would disssb.i9; uspc8v ipate 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 currentc+ a ,5 gmjsh(;it+fme through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V? t+smmj e;fa5gh(ic, +


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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 arei w4sab.s4ex 9 connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of sx.9as4bi4ew 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 arzqfmmj(3 -rzg g*;ww 0e connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 diqzg 3 w(-wmj *grf0;zmssipates 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 ti +mq:t ugm5t wwo:+w+he maximum value of the cu uw: wm5qtgm +++io:twrrent 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 wattcmnxc2hpxj2 x/c ,7e8 lightbulb designed to operate at 120 volt8xcn2/exchc mjx2 ,p 7s?

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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 dissipating 0msha4vr b);q36 watts of4h )qarv; m0bs 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 marked "120 volt, 600 6qhw1si2* ;i*qjv v ,wyehb2f watt.” In normal use, the ci qif1q*2vbs2 vwh w e*hy;j6,urrent 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 producedpx(x0nwr +ta + by a circuit containing only three identical 6Ω resistorspan0 w +xt+(rx?

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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. Whp:0(qfg hudxo 8g;a e:ich of the following equivalent resistances CANNOT be produced us;(f:p:xoe quhgd80 ga ing 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 differ)5d :mw2rd g v0tpw.k+y(nyttg) y5jaent values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resist5k yd5t+g )p)nw2dyjt0(vt g. raw :myance 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 total power x+, wyldo/f:0 e9e aslP is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are ca0welfyeo+:,9 /xl s donnected 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, arm4 .. ui/yw*twa 5iztde connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the foltw4aw.dit/z.umy i*5 lowing 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 resistancvm2a2,txt oa0ot).ra 5 nk4hxe of 12Ω when operating at 120 volts. What is the minimum amount ot2,xhoomaa2r .5tx 4 ) vka0ntf 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 tilqsv /:mh ( 2/y;nxlohat is dissipating 36 watts of(mnv;siqlyo: xh //2 l 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 connectedbb h2,jr j4om9 to 120 volts. If the price rjohj924 b,bm 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 lig z aqe/cz,2me:htbulb lit continuously for 1 year at a r a/m,zeeqcz2: ate 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 power of o;1 axtj4/ pyg 4:+tl3usu4p3zzo8/m frlbz y 24.0 W associated with the bulb. Which one of the following choices best r smrl3u/xzo8y /t 3gupj4+44l pa o 1:f;byztzepresents 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 siiz(1ay 7 :. oqunurn6nx owns 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 q61i7zyunn(n :o r.ua 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 forg8uch5xlxlsh (kco;9x 3kt/ 3m a simple circuit as shown to ;l8/sx kholt (3xg3kuc 5c9xh 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*fy i8i+v(jjplkbsw q/wmfgb, ibf)+-6,w8t to form a simple circuit as shown to the right.tbij8 ysfgjwk +,p/wmfi8 wf6i) v (b,q+b*-l
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 ub ms:xsz-st(ax e42 *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 amperes.ss*t( xbxseu 2m-a4z:
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 idb 5f- d+owa1/dh0jlsdeal ammeter, a switch and three resistors are connected aoh-bd j 5 sdfa1+/ldw0s 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 switch and thrjt3vsk: i bvp0 3ie0g,hy up52ee resistors are connected as shown. With the switch open as shown in the diagram the vv u 3gti5p2bekiy0j, h:p0 s3ammeter 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 ,+6zre x9 :wkq:ywl h)baj+i kto the right, what is the equivalent resistance? Assume that all wires are i+wqai:b:,j+e) w hxz9k 6ykrldeal, 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 the8:tbwg )8kbmpa bw 6di )n:,kj right with resi:kamjw gtnb,)pk 886:)ibwbdstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combi;.5 yxby tk:kd2y ak ;-gce8otnation series and parallel circuit to a voltage sourcx o5tb:kyk ka dt-e8;cygy2.;e.
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 combina261 qo keytgelc+4xl. toukze (+4/oktion series a.k u1ye z/ 2tkc+ll4ooo ( 4xet+qeg6knd 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 circu,j.vp c9r,2prb;az -ct7u iabit diagram, all of the bulbs are identical. Which bulb wi,;, v-cat zrabp.7i2brc9 u jpll 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 switchg-m8y- k rq) y;htriv. and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. qy-rirk;.yg)-mt h v 8
With the switch open, what would be the potential difference across the 15 ohm resistor?


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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 resk x zxn70tlkm:xd8xm z; 7un(3+t)p iwistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2; lmxm )k zwi8kz(dt73ut:xnxpx7n +0.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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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 resistorsmxa9 x8sr 94eb are connected as shown. With the switch open9 mrs 4xxab89e 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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