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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 ror dncoc. +h4f /3g mw6*x7ngyesistor 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 the interior of t4cy +rh gc fn3mn/.od7gxo6*whe 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_____wl g)dl:22jy y____each resistor i)wg2lyd2 :lyjs 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 :,j g: /dezzkswire of a lightbulb causes the filament to become white hot, wk:djse/,g z: zhile 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 replaced with LEDs. gb *v ie55zij a.y5u,w7xtn;nLED is the acronym for which one of th 5; axn5wti.eiu*ny,g 7 bz5jve 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-sect00dyt.hwrw :mecyh.6 k,g se ) nw+v+zional 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 hh )d00.mkyvrznwt s:gcw+we,6y+ . ethe 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 twi+g f.vjt (geg w5uk64tce the diameter and twice the length of I. If I has resistance4gt.eg+ gw5j6k(uvft 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 3qtkhdd5e.eo r9 t3 7cmaterial but has twice the diameter and half the length of wir. ddkc eh tr5q3ot937ee 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 has length L and radius r. This piece of materialfx wg yljd;o,17d3nd-a345bt 4wbxgs is then drawn so thx,d lg 51f 4x47gns;ad-jy bwwt33bdoat 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 Edison wants to make a brigho vkmn0t1+ -k8latd,kb w 1q:ster light bulb. He decides to mot,o1w 1 :ma0n sqv+dk k-lbt8kdify the filament. How should the filament of a lightbulb be modified in order to make 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 cylindrical resistors are made of the same material. The leng-2oa l:8 7rf f31 euttclv;nggth and radius of eg7t3oefagl1 :-urc8v n2f;tl ach 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 conijvhf) r b)d.-nected to a battery in the following way: “Two resistors are connected in series. This combination of two hj)b-.rvi f)d 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 has internal resistan a37c feiv*dh (dt7ib-ce 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeteri7d-3h (avt7eib dc*f 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 com8vhul2g ii* :vpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dlh8i u2vgvi:*iagram
- 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 ra3)u r 96idalt,bup 2right. If the current in all three resistors is equal, which of the following statements must be ta p9, rbuiau )2dlr36true?


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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 hncgfxh9i v/8z vf)+5composed of 5 identical light bulbs and 2 flashlight cegix fhznv+ch98f 5/) vlls. 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 follow9o-nh c1 iy.+obvpab4ing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are hav b41aoch vbnip.-oy+9e 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 lightbulb ,q)f1ugi .1dm1dzhd cs X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY uz 1mdcqg1hdf1)i .d, 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 th3wlipdhw(yj91+n0a ve identified resistor in 5 seconds onn0w whlj91 dpi(a3y +vce 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 the fol+vsv*h wsgds 1f tv7/7lowing simple circuit have the same gfvws sd+71s*/th v7v resistance, 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 circuit diagram, the current hk *fqkde,zj/ut9q -* through the 6.0 Ω resistor is 1.0 A. What is the poed/qqu t-j z*hk9k,*f wer 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 resistor4g.p)ive 7e kbh.sk3 qs R1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a res)ekhbq.k 7s4epg. iv3istance 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 connected in parallel to apoqt5va4 qb* a/7r0 qf battery. Suppose R1 has 2V across qt5 vfoq p7qab/4* 0arit, 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 ratuo0( z4q id4f vow:xf9owd/*red 1200 watts and 120 volts. What is the maximum value of the current under to xfq4u0/id 4(w9rvdozof: *whese 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 operate at 0vo-zqi zet j-c5 vk4m1( cp.d120 vol 0vq54c1 mvtcz-zpd -(joe.ikts?

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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 f.8nv1yi8c1e f5y 2bnmc m9uwglows through a 4 ohm resistor that is dissipating 36 watts oygnc8 8m 11b5 yc enufiw92v.mf 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, 600mv7jw)fc ; ,iz watt.” In normal use, the currei cfzw ,v;j7m)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 following resistances could NOT be produced by a+cgaql3 ypm9x i*en/ 2 circuit containing only m agp+ni3/c92 x eyql*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 thrq 08d 2x0rltnd i*wuk.ee 1.0 Ω resistors. Which of the following equivalent resistancewqd8u0 ldt02x inkr.*s 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 differen0cry b+ be(9tov0 6f v-kctc(tapds;0t values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance can v0-d+ cbc6;(set0(fk rab0y t9ptocvbe 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 powyu9jvzsos ok) zk.5zgb598 vx / wu:z;er P is dissip bzs zvu./ s jkw;v)oo9x:gzk8y5u9 z5ated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected 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,- 94ab(yztt75 wyy(chqn te3 r5iy ea/ having resistance R1 and R2, are connected in parallel, the equiwa4 y5/ yzn(ecq9i5t- 3y b(aet htr7yvalent resistance of the combination 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 that it has a resi68jv++zzkx8 n)fpm fgstance of 12Ω when operating at 120 volts. What is the minimum amount of time that x8f8+zzf)kmj+p vng6it 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 resj xe6f6i1aw4ntf7jgf4rui/::f, b.v mc b : hjistor that is dissipating 36 watts j,fjmgwfx4/hei1t 6 bi: 7baf: nuf.vr4c:6j 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 of curr* k4aq m,d5-ws qom5exqk3;; 9hrfzh sent when connected to 120 volts. If the price of;q5 wkqmoma3 qz 9fk;es4sr,5dhx -*h 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 c bps(gzo5j:hll69e z9 2 c6qsto keep a 100W lightbulb lit continuously for 1 year a 9zpqss2c :6(l9b6ec5j ghlozt 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 ligh/z./,nsl 1rh fwyen 5ctbulb results in a power of 24.0 W associated with the bulb. Which one o,c.h/neyw1/z f 5nrls f the following 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 fabq4nyv9(c 4g pveo 3q6mily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged int43vn (gy qecbovqp9 64o 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 connected to four resistori6u fk mgypwm;nr.t4 1o24ez ;j5-blrs to form a simple circuit as shown ;tn;up wrgrz 5e46l1j 2 my4.mb kif-oto 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 s62*cs 0tbstt form a simple circuit as shown to thesstb2s6tt0*c 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,nin,pm2 cal, q 6u/or+ an ideal ammeter, a switch and three resistors are connectedrncan +,o i/ m62ql,pu 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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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal batteryvj0*.m 7bw ogl, an ideal ammeter, a switch and three resistors are connected as shown. With the switch obgw7m .jo0v l*pen 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, ank,w1u ,gv(mpxigqvbkp l* f8*t. 5+y75c yeb switch and three resistors are connm(pblp,bucyeg 1fxw i *.q nkv7 vk* ty5g+5,8ected as 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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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 iq b17q3x m:fexs the equivalent resistance? Assumex1 7xbmq:qef3 that all wires 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 resistanh*8,csq i5dth6l :tugb)7o7 gqc ey5 fce of the circuit shown to the right with resistances ht )gyq876 e,hcl5f tdqu* gcso:ib57$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 sho-g+0l ahm+zz rws five identical resistors connected in a combination series and parallel circuil-0 ghraz++zm t 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 resisto34*7 glaul,gkp hn hl;afxq2-2u r1myrs connected in a combination series andanupglfkaux3h,l1 lh; g 2m-y2q r74* 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,zt wt sobabx(a*+. 8l9 all of the bulbs are identical. Which bulb will be the brightes a. 9a*o8 btx+zltsbw(t?


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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 resistors are383sk* ki- m8igokvir connected as shown. With the switch open as shown in the diagravmgk8 rik3*-3i8 oki sm 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 switcowvxrahk/c(/6c 3 kz +h and three resistors are connected as shown. With the switch open as shown in the diagram the amm/v+/kczawrhoc6 k3x (eter 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 three resistors e9-m h xz.et x hhnwf,8)p0b( keskw+.are connekf-bekz 9h.hwe,p)s + m n8h0t(wexx .cted as 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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