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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 ct4n:o* ipzue+iql4 * lurrent 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 t4 zpi+4*o* uq tei:lnlhrough 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 parallel, the______0mo( is)6y k x26pb ef)ol vmya6:b8f;2srdxt ___each resistor is the samvbry oi2dx 8te( xs 6amb0:)pf66 2ksflyo)m;e.

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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 gr,wbc)z-3 f9s ,1 k+mzheljh the filament to become white hot, while the larger wires connected to the li fwbzh lejcsr1mg+- )h3zk, ,9ghtbulb 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 lightsc)/bx (u0: fnp:g wmafy zo3s6 are being replaced with LEDs. LED is the acmw:/ags 3fp(b ) xzyo6: nucf0ronym 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 resistor has length L and c6 4wmbc2gikm-o4* 8h(xk/ 6h ynzzrriross-sectional area A. It is to be placed into a circuit, but it first must be cut in half shx-n8wk* g (h6z2yr/irocz m6i4k4 mbo 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 hahajd 9 oi*.pr,s twice the diameter aj opa9 dr,h*i.nd twice the length 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 diameter and half /m zpoh0 yq2py,4w ml zji9/7w5-o axxthe length of wire X. If wire X has a resistance of R then wire Y would hax o-4/ja, wmlw5oz7hp 90/xyiz ymp q2ve 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 hpagijq4s )3 *L and radius r. This piece of material is then drawn so that it is a hgaj*)3s4iq p 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 bulb. He deci2 wmgn j3g* 37-:tqqrk e4wqpvoosj*,des to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb pro 4pejk**o qstgw:o qg,rm-37qw3n2jvduce 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 /5jekska3wmqk ) 3js6resistors are made of the same material. The length and reka 3/)s kj 56jswqmk3adius 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;8/lr5b ik (y) tgtybi 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 series to a fourth resistor.” What is the equivalent resistance oygy)5 ti/ikbr(bl 8t; f 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 accomns5.l :k flucv 6l8/gapanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thelcsu8:fl. 5kavn6g l/ 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 compvt4-qri1 /ty2 dq6mm eound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistor t261q-m4vqty /direm s 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 a rne+s45w k7epll three resistors is equal, which of the folsp+4ew 75rkne lowing 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 simp *qan wtlze4.nd*l0 6ile electric circuit composed of 5 identical ligzdqn*ta4wl .n l6*0i eht 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 statemennt 7v3-acm7rn ts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are haven-ntcrv3a m7 7 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 arel1-:f -q sl +lx+knc6ruircg. connected 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 parall-l+cs. -ql1c+lrgrukix 6n:fel 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+5h: fa/c(p5o .cwrhx3 :bfoq l aw.aznsm)9w identified resistor in 5 seconds once the wwlab/hhopm 5zcqf x.59: rwa(a.s :fo)nc +3 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 thb 6f)z gkz.g3ne resistors in the following simple circuit have the same resistance, which w )gz.6kzng 3fbould 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 6.0g fy1b-nrh9tj8 h0e+u Ω resistor is 1.0 A. What is the power supply voltage Vb0f9nhrj+y8t u1- ehg?


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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, n2zt 40u4i mbk yd qh1)ikqb(8-w k/yvand R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, andy0kv8 1ki4in4t )-h b mbzkq yq(duw2/ 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 vhj aim,n 8s:(resistors R1, R2 andR3 are connected in parallel to a battery. Suppmij8s n(,v:haose R1 has 2V 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 th.g8qsl6vbbc5 u;ykl ,; 1o pkbe maximum value of the current under thesvbbps, c b1lg6q;k ;8ol5.k uye 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 re cxx:yp owsqb)olwg;8k1/+ 7wsistance of a 60 watt lightbulb designed to operate at 120 vo osxw w;+x71gwc/l8pybq :)kolts?

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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 dissipat) pkxkv97rg7. 7fhmk ylk*bk ,ing 36 watts7)kbmfgr7x 9 ,7*hkkkyvp. lk of 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 "q wnpwg)s 447r120 volt, 600 watt.” In n4gs)4 ww7nqrpormal 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 by a circuit zl -o7*7 (cswt wj6sjgcontaining only three identical 6Ω resijcto6sg7 w ( wsz7lj*-stors?

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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..th4zcoyj 36h 4af 8vixdc7fc ce(-f2 Which of the following equivalent resista 4y4a8ocieff c 3.(ht7c26fcdhxzvj-nces 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 connectedmpi,:vq )lwd y)w d69:lixp5y together in different configurations. If all three resistors are used in a cirlw)ydv:d lp9:5wpxi, 6)yq im cuit, 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 to a battery, a total power P is di /4l2yj) aacmcd/3e+mfmw ( lnssipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in seriesnae)4f +l (c2ywm/ d mmlcj/3a 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 res*7 p2acrgwnt 0jg j-(pistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements abourp2pw-j n7a *t(gc0gjt 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 hi /5oso l(g7ardd c(yx2 kkc61as a resistance of 12Ω when operating at 120 volts. What l o/1odcx5(adr7ci26s(k kgyis 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 dissi,+ c/ez9lq0hs c7 q,svync)cqpating 36 watts of ps+c7y0q,cc,z q 9 qs/nvlch )eower?

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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 cos5f )n4cs 5msdnnected to 120 volts. If the price of ele5 s)5ds fncsm4ctricity 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 1gw *s4z4v 5iphvy.eowould it cost to keep a 100W lightbulb lit continuously for 1 year at a rate of 5yipeh *s1ogv . wz44v$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 thr8x es(cjtf;,f/z vnc :ough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resi8j(fztxf/s:cvce ; n,stance 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. vb5i9qw*qb kt al/,h six 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 number of the computers can be operating at the samw *abq/bt .li9h,5vk qetime?

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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 fo4dp 2mhm6h,dd enf3n0ur resistors to form a simple circuit as shown to t2 dhfn emp,h0d6nd3m4he 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 dbmc g/z opnvj/v6(*1is connected to four resistors to form a simple circuit anz jg cvdbm(v/ 1po6*/s 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 ammyg64:wolwn ( oz4t,oteter, a switch and three resistors are connected as shown. With 6:n(yo, z44ww o gtotlthe 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an it dpthp d6b4/f 75soh8deal ammeter, a switch and three resistors are connected as shown. With the switch opsttb/6 8hd5opphf 7 4den 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 ammeteklb4d nysg 64vl 9;9+2p 1bjz8jol) cg 1roqenr, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammenl9 ok4l)jd v4y sc2 1 r8blop+;1zb6ggen9jqter 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 equivalen4g2 paf9nrw1yn3n 4tmt resistance? Assume that all w43gwp4fyanmt1n9n 2 rires 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 yx2 5rozt8od tr rjg+/ug 6m)m.kc(l ; to the right with res/uroo6.c(gtrg2m km xyrjt) 8 z+;l5 distances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 fivhn6sxc0; --uz qm8f0 cvi szbcn2is2. e identical resistors connected in a combination series and parallel circuit to a voltage0-80s fz6 qhsc;2.szvn m ui2 ib-cncx 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 five8 v3av7q4s(-fwp1 la lx dxgsp(,s0x v identical resistors connected in a combination series and parallel circui3 gs8 q - lx7dwvla4 (pv0s(f1,aspxvxt 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 bulbk cioo,,fxf :s:5za j)yqb8v* s are identical. Which bulb will be the brizsba5o:,fj icf8oqk )* y: xv,ghtest?


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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, vpfz0z4z7mcr9tpuw /qao 4 5-ib2 b:ga switch and three resistors are connected as shown. With the switch open aswvc75ap mo2 :t 9rg-q0uiz 4fp4bb/z z 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 are cqs9p cav.qh1i88n)b connected as shown. With the switch oa cv1qi.q8h)8psb9c npen 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*u ngmo+hn 4wtkpoo*n 8 9n5if6:fc1y , an ideal ammeter, a switch and three resistors are connected asm*w9o o1inu+k46n:*font cy g5 p8fhn shown. With 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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