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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 exisvhd1nyjqbi14c(mt. b5+ e e9p: sjvy (g)o 3ylts 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 elec(.:ldyevm) boijyy+3gn4sq95pe (vt11h j c b tric 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 connected in paralfn 8 d9p frtoo1,g g:i1lrnx,0lel, the_________each resistor is the sam of, xr n1o 1:,pg9nir8ltg0dfe.

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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 thin5qwmux77 tg+ai )0 lwy filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much coole0m )7y g i7+lw5xatwuqr. 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 LEDs. LED is the tjp,tp ujdz-1w k-i0+ acronym f ,p0ukzwdti 1+-- jtpjor 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 resistorkp1;syh + xx3 .;qpich 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 newxx .kyp1i;hscq;ph + 3 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 mate;dj shawo k8oj:00j*drial. Wire II has twice the diameter and twice the length of I. If*ddk;j0a: hosj j 0wo8 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 1u)j oyy.)hgd.jn7oxhalf theh1jyo7dyjgxon )u ..) length of wire X. If wire X has 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 resistor habiip3e8 pr 6;qm-i/eps length L and radius r. This piece of material is then drawn so that it is a c3 beppi8 pq/r e-imi6;ylinder 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 wbd:rjn v l2yx /hg8:g.ants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to mahy:nr :2 dvxj8/.l bggke 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 cylindrir wm775 i2:ebep -rf8)h)b. dxe/ re* tujipeqcal resistors are made of the same material. The length and radius of pp-dq7ee w *2 b.rx7teu5r )ee:rj8b) /hi mifeach 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 battery in p4dtlje r:w64uqj dx5m y*m72 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 resr46dm2xj 7dm5 q*: w u4tepyljistor.” 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 voltmetermaww,jft/9 1lo( 33wxy1msn p in the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter rw1( lw 3mw9fosj1ny/t3x amp,eading 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 compou3zt+0(vyg2fruagrdk,/w v :/krd0 iv6d y)blnd circuit shown to the right. The three bulbs 1, 2, and 3 - represefrz/ viwdlrv)dd y0y 0 6rkavt:/bu (2gg3k,+nted 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 )f grkw 0nh85wcurrent in all three resistors is equal, which of wf0g58knhw r )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 r6w6 .;h9b8 pp2 xmvuupfkh*o1g( pgy mepresents a simple electric circuit composed of 5 identical l w2m(.g ppvubp ku6h*oh 69yfg1p 8mx;ight 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 concerning the simple circng w-hcf d3z-2uit shown where rgzd2-nw-hf c3esistors 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 incsns7c +a uk,bg5+7pj series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elegck ,s+pcuja7 + b57nsments 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 thr/fpnkn /qf* dmy1a 0l;y1e sv7ough the identified resistor in 5 seconds once the circuit wa m*qk1pv /n0yes 1f7 ;dfa/nlys 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 t9,(a z/ +qjc.hamowaohe resistors in the following simple circuit have the same resistance, which would dissipate the g.zqhc a/a9+wom,o(a j reatest 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, 3jr 4 i6ykt uk)gth+u6the current through the 6.0 Ω resistor is 1.0 A. What yikg kt6 6u3t4hr)j+u 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 R3 ar ueb95xb.mihiess+c xm 47:nhe/-z5ge 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 volt4nc 5usehe+es/:x 95z xigbb. 7mhi-mage 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*/-4h/7 nsljjfdk(nq yj eb-1,h jin9jcy/i y andR3 are connected in parallel to a batteryfc(,ny h h4b-*l dkniej9s i//7nyqjj-/1yjj. Suppose 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 wattsta gy;. jsa0u; and 120 volts. What is the maximum value of u.;sy gaaj0t ;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 oper+4cn*mc bxfx 2/yt6bbate at 120 x+fb *x bn4c/62yt mcbvolts?

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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 fyucoj/ q ,3n:c:t hh+xlows through a 4 ohm resistor that is dissipating 36 wattq ccu ,h:tjyho/+3 x:ns 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 "120 :3l1 mr+qq huxvolt, 600 watt.” In normal use, the curreh 3rlumxq q+1:nt 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 foo.in(n qrt5g.k edo:(llowing resistances could NOT be produced by a circuit containing only three identical 6Ω r(t o :..okn5(inedgq 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 three 1.0 Ω resilm*iu,,.ud z gf(gjv1 stors. Which of the following equivalent resistances CANNOT be produced uju,gvzum gd1fli,* (.sing 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 e gy -obwaz(qzgb6v7hc* 2b3*t8n(jn different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanceo 8behb7y* 2qv*zt n- n(za6cgg( wj3b 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 a1b z4m cmj1u a50ktppw s7oy;7 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 serie1kj b;tyzoaps50c77mu 4w1 pms 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 zwhzber/. k4tad*3 b7 resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statement .tew*r3a/hzbz7k 4bd s 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 xmk+ut xo/. s:has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 k+uom xkxt /s.:g 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 twcpi2e/ h:rcg.w,2aihrough a 4 ohm resistor that is dissipating 36 wattsw/c2:,ehi i.gw2 ac pr of 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 f:*gl 912hw ;/o oqv qi9oszauof current when connected to 120 volts. If the price of electricitli ;q2 a*oso9h:/uvz19qofgwy 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 wouuju p y;f)7q2hld it cost to keep a 100W lightbulb lit continuou)7jfhquyp u 2;sly for 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 through a lightbulb results b bg 3tut6;ts1in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistan6b1g;ut t ts3bce 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 wa :0e iz9b7ai8nn.y* x ktdvxu(g +tb)k6 +sonttts 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 o*n+:.7+k xk(eytnsn 806tx)dt9iz uig abbvoperating 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 z bvf+dpdahvk/.800 b to form a simple circuit as +bf.08dhv bakdv / 0pzshown 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 resistors to form a simple circw4u+ez*h (kgcuit as shown to the right. *(c hk4u zwg+e
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, at nw1k0vp5q iw;c8)bh switch and three resistors are connected as shown. With the switch open as btw1ciw80vnp)qh;k 5shown 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 ideal ammeter, a switch and three resistors are connuk*5l m bpw1sz: i-lt(ected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes. ll5ikuzsb :t( 1wpm-*
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 resi3pwqxm te+ m ,kfk6g20 )nk1urstors are connected as shown. With the switch open as shof mt +n2wx3emk,k0rk1p6 uq)g wn 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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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 d 03fn3-b:fi mny zct0the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resi0n bycnzfm:i 30-3td fstors 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 ao2v3zzh wr01* y,tt uresistance of the circuit shown to the right with resiawrt3u2tz*zhv0 ,o1 ystances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 s9yh4)ux y odn,hows five identical resistors connected in a combination series and parallel circuit to a voltage source, n xodhyy49u).
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 cooac 5s(j*.7ehhf+sxfie8m. dmbination series an*sejdm fhso.5ce(+ . hfx8a7i d 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 of the(o8o6;tc kz:qk s y.rt*x)gq :idht7n bulbs are identical. Which bulb will 6g:;) (z qd8 r kx7.hntkto*iqst:oyc 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 ideac k,dyr1:xsy -l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetxry1 c-k,syd:er 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 r.bb qv db4kqu c 7ko(09 + xd8lucrat*yc,xc1/esistors are connected as shown. With the switch open as shown in the diagram 8l kq0 cux/o4b ,+v.ycadkdb917cr(tbu *qcxthe 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 idealcykn2kl1 o 89+sx4qzp ammeter, a switch and three resistors are connected as shown. With the switch ope +konp9s kyq1x8c2l4zn 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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  • 姓名:游客(未登录)
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    总分:50分 及格:30分 时间:不限时
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