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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 shoeok68tb7 o xksr; 3p5gwn, an electric current exists in the metal resistor connected to the battery. Which one ofgtsob 3o pk5xk 8;r67e the following choices best describes the direction of electron flow through 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 connec /q*m6onb).ralrtf6m ted in parallel, the_________each resistor is the samnt .alrofm6/)6*m rqbe.

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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 t89n8)cv ro mtk5sbv/ahin filament wire of a lightbulb causes the filament tomao8bts 598 v/)vrcnk become white 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 household l*1 ahb b6g4,rdijzw ))mqo )u9dch6r mynm9s9ights are being replaced with LEDs. LED is the acronym for which one of the following cho,*msc 4idgqawzhj r9y )oh6)n 9d9 u 1rm6mb)bices?

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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 ania tgnwc kus2)x36f8 *d cross-sectional 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 the ratio of the an8kifcux* s) g263 wtnew 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 IIoyu 7m zch-4fl:v.+vmf5 lq3q are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resistance 5+qv.o lmfmv7chzl:f43u yq-

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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 d5 1,kx)sft 7okly7t tthe diameter and half the length of wire X. If wire X has a resistance of R then wire Y would hao 5dfl1 ,txsyk)7 kt7tve 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 resisoa(m z3r8r/g2swbi a. tor has length L and radius r. This piece of material is thenr izwoamg3/abr8 s2.( 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 Edison wants to make a brigf,h*za,ju-r( ,b1zpgy+kc wg2z gk7b hter light bulb. He decides to modify the filament. How should tg ,g- c kjz,+g7w*yp1uz(fbr, h2akbzhe 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 maxwr5ru rj*kr1- q7 5nsu1 m)hkterial. The length and u5nq1u rskr jwk-7 15x* m)hrrradius 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, e*bdgqxl x,o 0:ach of resistance 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*gd0blxq: o x, 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 accompanysso3j4c2v) fting circuit diagram has internal resistance 10.0 kW and the ammeter has inovst3cjf)2s 4ternal resistance 25.0 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 show ;lq33tf 1r,x5p tepjkn to the right. The three bulbs 1, 2, and 3 - represented as resistor;5rpjq l, p31ftkxt 3es 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 thex fs0cf7ul,w2 right. If the current in all three resistors is equal, which of the following statements must be7uff 20,sxc wl 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 repres; bhmbb d/k qn93:q1:mkdw/ heents a simple electric circuit composed of 5 identical light bum 9e nbbh:q/:dqdw1m3bhk ;k/lbs 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 statemex1xxuzb .3 ah*nts is NOT true concerning the simple circuit shown where rx.ax*zx3b hu1esistors 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 zj6vh5 +aleh4kr/ e:hz;itc2yum9dvt36o( t andY are connected in series to a battery. Bulb X is brighteri:a6(9rzk;ezv6 yh3umdt ce2hvh 4o+l j /5t t than bulb Y. Assume all circuit elements 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 thyl, yfvt/;jd .rough the identified resistor in 5 seconds once the circui/yvjdfy;,lt. 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 resistors in the following simpr4s pca 5yv20ple circuit have the same resistance, which would dissipate py4p2 csrv a05the 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,c rs jx35j2(uj the current through the 6.0 Ω resistor is 1.0 A. What is tu j(s5cx rj3j2he 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, afpy7wi)3:fy ffr8xw )nd R3 are 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. Whafpf8 rwfw)):7y3x ifyt 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, Ri;cif -rxp.rw21px,nor b(: uofv-3a2 andR3 are connected in parallel to a battery. Suppose R1 has 2V acrf:. ,iu x2fr3rac-w o ;(rp-pb nx1ovioss 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 120u2 l.vrt oqnsabj6 jz;671at ) volts. What is the maximum value of the current under these conditions nrj 1uaq.s 2tz7j6b6alo)v ;t?

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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 h9onm yetmzph.7/ r. .9lcs sze5i)/jwatt lightbulb designed to operate at 120 vohh9 rsey z9 m5/e7.j)/s tzmpno .c.lilts?

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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 *sk cg19;e0ikvjor: gis dissipating 36 wattk*9e0svo:r gjgk1 ci; s 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 volt, 600 wat,1o bg:hy(c ytt.” In normal use, the curreth(,y1yco:g b 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 resistan pp;rs2/ud09s(p c hn1b znca;ces could NOT be produced by a circuit containing only three identicaln/arp9b snc zh 01p;;cu(sp2d 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.ny.g 2w f/0apw Which of the following equivalent resistances CANNwg/ a0. 2nwypfOT 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 6wq6pz f ),g3.w4a umjtcoh2kconnected together in different configurations. If all three re.j 6t3)uw 2hg6ozmf 4qckaw p,sistors 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 resistor is connected to a battery, a total power P is bm44,fshdvr nhm +w x8e+3.n xdissipated in the circuit. How much total power is di,x ehnxr3mv4.f+sm4 8d h+wnb ssipated 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, having resi r1wwp0h 32vmastance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correctp w3m1w arv20h?

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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 des/judox4. r pbecq*a3y7ph/l .igned such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of7q yopehjr.x/ acl*pdub4./3 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 rli:7y1ueon- eesistor that is dissipating 36 watts of yn -ou7el e:1ipower?

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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 connected to 120 vo 2julhyx-d+ t1lts. If the price of electricity isjyxtu+2d - 1lh $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 mw 6jsv rb8 :ht3u9muv+ ev/ g7kic*1zduch would it cost to keep a 100W lightbulb lit continuously for 1 year at a rate ogju7m u8 bw h*/rc6 v:dzk9v1vt3e+sif $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 curren: 8a; 22s(wxw krdcmjrt of 4.00 A through a lightbulb results in a power of 24.0 W assaj: (x rw dwkr;c822msociated with the bulb. Which one of 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 family of six owns a computer rated at 500yfd5nu(3xj0 f eh3)k 1cs jt9b watts in a 120 V circuit. If all computers are pj(ektfds )19hufb cn53 0j 3xylugged 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 battery is connected to four resistd 3n5icy(pec ) uus9n;ors to form a simple circuit aseyds9puc un 3(;in5 )c shown 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 v:ut,gyp +qpbgnxfpm9)5oi0x uhyh 2.a*,,fconnected to four resistors to form a simple circuit as pbph,qytv,+ iu 9fxmyfou 5n.x*:2p0,ah)gg 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;:+1 rawc6gk 0uycn,v.chwk q ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter k cnq1ar:, 6 ww0y;kgc.cu +hvreads 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 batt*m6f2r08kjw alz n qr(ery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as slfr 8zqa*20(n 6mj kwrhown 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 three resistors. mee.;0pj*)d d /vgihel2uar are connected i*. de/lapre;jumhv .e0g) 2das 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 is the equdr (nqtl;uj5 -ivalent resistance? Assume that all wires are ideal, the batterytrqnj-(5 d; ul 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 equivalend k548xul(qwd8 +j j1sbdz7 vqt resistance of the circuit shown to the right with resistancel q(s+85vkdd quj wz47bj dx18s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ihkdh5i)+0rt s dentical resistors connected in a combination series and parallel circurt+0hkd ihs5)it 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 resisto ocdo -p5 31oxa+b:hpqrs connected in a combination s:doo3 aoqc-1 ph5 +xbperies and 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 bulbs are identicalch*l ;vl:mk0uuy2 db/bbg:) i . Which bulb will be the bri k ;h)u:bgbvyci/u *lm20l:dbghtest?


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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 ammeterki6:zgna yuy:h;:- tn6ivx( w , a switch and three resistors are connected as shoitknzu ah:;:yyin 6gx6w- : (vwn. 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, an ideal ammeter, a switch and three eb 2;js.k fa8ibo4n/gresistors are connected as shown. With the switch open n; g8s2b o.b4/ekifajas 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, an ideal ammeter, a switch and three resistors are c5jnub0kq7 g2 uonnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 am7q2gnuu j b0k5peres.
When the switch is closed, what would be the current in the circuit?


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