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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 shuva / zjxg34p3own, an electric current 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 through theujv xz/p33ag4 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_________eih kjckqy s y/l 7r4c8ox/)m .z0;-wgtach resisto8)ji zy;cscw-/x7. k m grhy/t4l0 qokr 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 cau(,d89cw*7 u)bb xo3 cvh txyrvses the filament to become white hot, while the larger wires connected to 3vdx orb 7* w9(tx)hbcu8cy,vthe 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 beinge8 nfq)6(xw5o et/myo yks(8s replaced with LEDs. LED is the acronym for which one of the followioem 56(q noy8 yt(8f)/ kwesxsng 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 area Agqi 4,wr0khg jkm097j. It is to be placed into a circuit, but it fir7k i4,0km9rjwggj h 0qst 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 has t +y7)dz 9;fdxva 4g4xjb safd0wice the diameter and twice the length of I. If I haj4 7fyaf9s+0b;v4d )xd gxadzs 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 dhveco*gl5ce1 3/, ou aiameter and half the length of wire X. If wire X has a resistance of u*, eo eao1hvl3/ccg5 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 has length L and radius r. This piece of materiefd *(ofu8zd0 sq77hw nqv7:lal is the:nh(8 *woe0fdv 7d7 f7zlsuq qn drawn so that it is a 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 Edis4 6p2s1yd(z/twwgc pxon wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb producesw4 2w xyt/d zc(6pgp1 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 hu;z5r(wm 2d5 w t9)qbnfut g,made of the same material. The length and radius ow u w5,mthngqdrtb; 95) u(2fzf 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 resista6*wv fnwdb4:hnce R, are connected to 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 of this arrangemeh4 :6 vfwnd*wbnt 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 ac q;-7cafd gclro)* b3ecompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25-37alc;*o gc eqdb)rf .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. The thr 0dw. hti7ra )51 v/q8lkdnfxbee bulbs 1, 2, and 7da k/ wr0tdxbl18vq .n5i)hf3 - 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 circ n 3g )irzzs+m7uv; /pon0ua*kuit at the right. If the current in all three resistors is equal, which of the follow3a+irpvsm n/ uz70znku* )go;ing 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 simple electric circuit co/.zv3oedijl 8mposed of 5 identical lildeo/z38ij. v ght 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 c69/yubdu7 h-)h5jx oyg 1 vsrponcerning the simple circuit shown wheb7 r1yusp/-jyvg6ux)9 h 5h dore resistors 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 a bax)hpv,)zar) gttery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andYax)vz)),gp hr 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 pwh,z/0 t(h 5:gokd g3 lcdasvq:ua2l*ass through the identified resistor in 5 se0(ohwtch5k/v d 23qal* s:,: zldagug conds once 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 resistors in t w8,m(was*c lcygvtr r a5o9,4he following simple circuit have the same resistance, which woum 4 5t*cwr8a9s vowgc(y,alr,ld 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 throug 14w4m*d gdk bv6s+uunh the 6.0 Ω resistor is 1.0 A. What is the power suppl+ sk64v uud4* bwmdg1ny 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 are conn 4gqcz7jbk1ik.-w j*c ected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, a 71qc*kc b-kzw. ij4jgnd 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 + a04uw+ mytsgggk98m* wqx(lare connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is thqxsw mg l+(y* gma0g8+ 9u4ktwe 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. x2 -z;gs e rda ry7oq7lw3z62a scbg2(What is the maximum value ozzo22 ;(e7xag-ssdby qa r 6crl27g3wf 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 2pgrv v8/q5lcto operate at 120 vr52 vcg/qv l8polts?

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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 flowz-(un dk3x1 ehs through a 4 ohm resistor that is dissipating 36 wattsz3d hun1 -kx(e 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 clotheon /0awvb64 hds is marked "120 volt, 600 watt.” In normal useob dnv6a40/w h, 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 folidew nk( +/ai0lowing resistances could NOT be produced by a circuit contaeik(wa0ndi+/ ining only three identical 6Ω 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 resistors. Which of the following equivd-( qelh16bbgd*8tgv r3psp- alent resistances CANNOT be b-lq1t6pg bd83e gp(s * rdv-hproduced 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 differenn*k)9a lanrw nw+sv12t values can be connected together in different configurations. If all thre)*vanw2 9nns k war+1le resistors are used in a circuit, 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 resistomqet:;+3fl mox;tp( pxmak98 r is connected to 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 sameak3o8t(+mmp9ft l;p;e: qxmx 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 connec8trxe3fci;n. d0;ut d ted in parallel, the equivalent resistance of the combinatidut8 3. dcn;f;rtxe 0ion is 5Ω . Which of the following 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 tha+uu.-bh9 q kmk(f)vlx t it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm u-k(q+fk. )h9 lbmvux 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 dism7lfq tr00-km sipating 36 watts of powerk ltr0fq0 -m7m?

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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 dsiq3u2: 3vy5ruwh +f iraws 13 amperes of current when connected to 120 volts. If the price of e yuh 2f :wuqr3i3+i5svlectricity 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 it3ghh8rr daj,+bb3he - cost to keep a 100W lightbulb lit continuously -djr,bh3h rbe3 h+8ag 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 r ui mk8s.ss*n4esults in a power of 24.0 W associated with the bulb. Which one of the follows*nk. m s4isu8ing 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 ow2x6lg9y 9 kbva+tfsftf3 . xy:c66m rzns a computer rated at 500 watts in a 120 V circuit. If t2 z6 v+km9lfrs6y 69yfxbcg .axft3 :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 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 batteryuts.8/z zz kuy.,p 2by is connected to four resistors to form a simple circuit as shsuuz .t2,b.ky/yz z8pown 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 resistorsoazpvp:d g ;(kj9, r5e.m.nbp to form a simple circuit a..g v pz(;:9ar5knbpe pjd,m os 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, a switch and three resisv6nn)4ksg0xb cy ki4q+ s4or 7x2zu)vtors are connected as shown. With the switch open as xc)6k4 uzbvvrngi)sno 2ky740+s4qx 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 ideal ammeter, a switch and three resistors are cwu c;93f,7 lhvjwv(fponnected as shown. With the switch open as shown in the diagram the 3w(p,79vfl u ;vhfcj wammeter 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 *p g71ctcp6 z)fdj g rf9mskn3y091fyswitch and three resistors are connected as shown. With the switch open as shown i3 fyp )*1jcrs9gtc179gzmfnpy k0 6fdn 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 thgu lll6qbw:u ) 8+i;iye right, what is the equivalent resistance? Assume that all wires are ideal, the ba:qi+;g )l6lyul biuw 8ttery 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 equivalent4jv 5akyoy*+u resistance of the circuit shown to the right with reso uja+*4 yv5ykistances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cohz+ iulhl.pgkxx6)l6x1(p 7c nnected in a combination series and parallel circuit to a voltag(ihx+ xu.gcllz6)xh7k1 ppl 6e 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+x e b rj 0l nl*1bn4p9)jpi.swjvr67d connected in a combination series and parallel circuit to a voltage w)e9l4rppnr7 6sv1jbbdj + 0x.ln *ijsource.
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 bulbs are identical3zwj)cqqui ai+61 szsl8:/ vh:ov9wl. Which bulb will 38is haoluvc+6q9: jiq1szvl)w z:w/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 and thref,s/1y;ypgfamhj d8yr r v3+7bn)be, e resistors are connected as show;d7,n 3 bvr)by1em hyy fp/sgaf r8,j+n. 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, anfxika 2j3pvc * kbjpxn .8aj;3 73sa*q ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diags k3fb3j8*;.2akjj7vip3*xq acaxpnram 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 switch and threey19 tgkfot3- xy h//yalvfojkh22v*f, tx;j6 resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampjt1vgohky*9;fyf/t2ho/ , 3f- vkxtax62j l yeres.
When the switch is closed, what would be the current in the circuit?


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