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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 czb 4xze1gmk,y5 u4m j4urrent 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 fi 4mzzm5 u, b4egxjky41eld 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 paralle f,g55nsyo 2yu,del0al, the_________each resistor is the saf ds,y52n0 l5oe,ya ugme.

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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 filamen-gqbw6 x lxrgu::b3/g iz4uq- t wire of a lightbulb causes the filament to become white hot, while the larger wires connectgu-x:g:w /lgbri b- x34u6 qzqed 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 househoupc g)q*:s ar3zejo;3 ld lights are being replaced with LEDs. LED is the acronym fo a33zouqrgp: ;s *j)ecr 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 crossqrc5r4 uyrj lfbsh93w /eme50 9d9fn+-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 newrw9ere9nh35/qff0 d+jcu lm s 5r49y b 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 x k,jtclq4 y,1the same material. Wire II has twice the diameter and twice the length of I. If I has resistancej1t l yc,4,kqx 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 s zlm 7xm n3k03w1ua0 )yqdvf.wame material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wm0 l03u kn zywwf3xam )d7qv.1ire 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 pieceytikko( ch b6ehu v*e4( c(j :1,(jzki of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this iy (u6toj j4k1b( ke vh*hcc(e i(z:,kmaterial 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 ul0d8h.v lrdim5rd4x) zlku5 kz 3+9lwants to make a brighter light bulb. He decides to mmi drhz38 k d.x59d4l k)uv5z+rlllu 0odify 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 arej 4t2p l7v5atc made of the same material. The length and radius of each re 275ptt 4vcajlsistor 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 hmv7kyj + 1o(ha battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel k1y7hjo v +mh(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 internigoua7 w 2ob:.al resistance 10.0 k: .7guiao2 obwW and the ammeter has internal 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 circuittam+ :z bn8 x6-nfd,sy shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagr+sd,t8anz: n xmy-fb6 am
- 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 lxtq4lw/+ob ,n 1k,wdj,ag5n the right. If the current in all three resistors is equal, which of the following statement4 w1jx,d /tka,,wb5lg o+ql nns 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 circ*t3 y1bskn6zjuit composed of 5 identical light bulbs and 2 flashlight cells3s1b jtz 6yk*n. 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 st h- c,qwd(qz0batements is NOT true concerning the simple circuit shownz,b(d-qhwcq 0 where 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 a*4cg bk ft-a4X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Ab tfk4ac4*-a gssume 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 thtopuwj ja1cqr4 hwe.m7)l849rough the identified resistor in 5 seconds once the circuit was closo44.mj9pw1h7 wla8 etqc jru) ed?


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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 followi5srnejoen .+)-w tx1-: x smitng simple circuit have the same resistance, which would dissipate the greatest p 1s5risx .t-j:)n+e- weoxmnt ower?


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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 accompkn a9yg3dp- p:uo(w poj .)(ikanying circuit diagram, the current through the 6.0 Ω resistor i)pjoa:g-p9k wiou(k .y( 3 dnps 1.0 A. What 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 9 s1uc/ 4qwfkzR1, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ωsz9w u1 qk4f/c, 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 resistorq9g-ce+,exk oeth boxu - 6w3zmj )a)4s R1, R2 andR3 are connected in parallel to a batteryt zhce m-)9oewo+jeba)xx g,6 4qu3k -. 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 dbl. h uef7i88f-+gv/q gf3jc is rated 1200 watts and 120 volts. What is the maximum value of the current 8hdf 8ieg3+-ulg/cq.bv f7fj 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 lighttzjxke6+ rmi014dm55 )7a9jz s8zjdrknn+j f bulb designed to operate at 120 volts? rimdz9fe 46 n7najj+r0)s 5j8 1z5t+xkmzjk d

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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 dissipating 36 w.oe *ab+t vnaya ly((/atts of p .*a(b /+voat(yae nylower?

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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 le82l qf;3pv10-jo; kdhg wtvis marked "120 volt, 600 watt.” In normap1lj-3k g; lfd2t0e ;qh8wv ovl 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 circu(7+lo jh*erogq ag5k5 it containing onlyk75j* gle5ohor qga( + 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 1.0ngkno+6yt 4o5 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all thg o5n6tokn+ 4yree 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 different5 (x lx7.yy5x iugpte:j(cou7 values can be connected together in different configurations. I5. :ol7 utgxcux5yxy7p(i j( ef all three 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 reanpsoyx 6af:lts )n4)43/dt qsistor is connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuqf3 opx)) dtntsa /:y64slna4 it 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 resistance R1 and R2, are connected in pggwic .5vqxj3/ pf4c7 arallel, the equivalent resistf7wj.cvg/ 5gp xci q43ance 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 resistance of 12x.w5mf/z qutz wyh +8,Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of +8 wfz5/ wuxmq,ht .zywater 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 resistoyr3xz n- z;exc/)yk1rr that is dissipating 36 watts;/yz)x 1zye-c rrxn3k 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 current when connected to 120 vo0d6vq :ylz-mpra7p c qg5p4-cv f +)yjlts. If the price of epcp 5qpcmd4ry0 y-z6vqa :f)-7j +lgvlectricity 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 to keep ahil0q9tvm mdlt)/ x 5* 100W lightbulb lit continuously for 1 year at m/x5l hvmdt 90 qtli*)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 currengul3(wvw1r1u c;b wqx9/3np xt of 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lig(wc/ gw1ubpl 33q uwv1xnxr 9;htbulb?

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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 wattsh ,qz/x3cg o zrq,f::x 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: zrzgcxf,3,oq : xqh/ 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 resistors to fu9+fdc ygny7v.4rz y,w 4e,o yorm a simple circuit as shown,9 gu ,4y4ywznv7edr.cfy y +o 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 t ljn18vje;tr08i :yoh o form a simple circuit as shown:o8vj ;1etj8ihn0yrl 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 a3h8 yitxf (v(ef*id6*tqdfw /nd three resistors are connected as shown. With the switch opedfhtd6 f(tw xf ii*(3yv8 /*qen 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 ideal ammeterieycz k7jar(5.k h 0l4, a switch and three resistors are connected as shown. With the 7aicl40yh.(ek5zr kj switch open 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 ammeterc)k+go;i zr06pdrlil,.iyv ( , a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammetel6l.)prkr ,y ; zo+iv(ci0gdi r 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 tz 8aoc dc 1wwfw5-f9v.he equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical rz9- o5awf. 1w wvc8cfdesistance 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 to the rightklq(,iwgld: ,6bj h og0fw71 k with resif,lwlw:b,(gdkg61j7 q0ok i hstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 ul46 oqw)g4hkk+* xewh9a-n-q)n dqsresistors connected in a combination series and parallel circuit tohg4 hdok4) q nsq -wux-a6kl9)+en*qw 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 resistors co6( sblxipr76 dnnected in a combination series and parallel circuitlsbi p6 rdx67( 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, y3 a9ns+rt qr8all of the bulbs are identical. Which bulb wq+s ay 3n8trr9ill 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 three resistors are,ak) (fhrcql2*a)u bfa+ lx7c connected as shown. With the switch open as shown in the diagram thkx2hq7ual(lb*) fr , af)acc+e 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 anh vbpxyjwo 3le8w v 8vfv0+cw75x+/0e d three resistors are connected as shown. With the switch open as shown in evj7 05x0wve b8chxv +y8p+3flwov/w 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 re/2zfg* p rsb(z g1l1gvsistors are connected as sh 1zg l(s* brf2pz1gv/gown. 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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