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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 0;ubd mze+k; dexists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of mkdu+0b d; z;eelectron 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 l 6j. q.:; tu 9jy-vvru(pzz8xgmxfn5resistors are connected in parallel, the_________each resist -jv.tzx:ljvyr9.;6fun xz qu m(g8p5or 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 filamvgz5/z/ .n8(pffrjx cent wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becn(x/f/5 cgzvj. rz fp8ause

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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 replacgo4r2 r 4v.ynced with LEDs. LED is the acronym for . g2no4 rvcry4which 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 cross-sectional area A.hik 3q*3)rz bkzy0xs 7 It is to be zsk 0hr37 3z*xqbyk)i 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 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 I2(9fg rp 3o2amck0 phxI are made of the same material. Wire II has twice the diameter and twicm2o gp0 3kxpc(9ha2f re the length of I. If 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 7y:asfa dd:j6but has twice the diameter and half the length of wire X. If wire X has a resistance of Ryaa:s: 7df6dj 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 o7bl0el /n-xv xje(h4 radius r. This piece of material /xx4e (ohbnll- 0ej7 vis then 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 bv nfa:0w (f4qwants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modin(f4b v:a0fq wfied 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 cylindr 1sn2f4zb1u z51 dzaznh21cafical resistors are made of the same material. The length and radius of e 14b1h dfzn2zczun 5az1asf21ach 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 the m*bv 3w.1xiikj jkg, ;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 resiwj vi1gbk;j ,imx*.k3stors 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 acc-saf:zghie +q;m/ gs f3 aq.dsohm. x .1e.wy(ompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal res/a:+1ggfe. e dfx.(s. saziqqomsh3y-w; .hmistance 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 com;6 s1n x)fib.qs7exjkpound circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in thn)61 ;esxqjisb.7k xfe 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 cir do(huyoq m8;;8(5aybh zp:dtcuit at the right. If the current in all three resistorsqzy:(8o y(;hb m8d ua 5pdhto; is equal, which of 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 righ47 pfmpfu1 zw2t represents a simple electric circuit composed of 5 identical light bulbs and 2fz pu7p4mwf21 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*g szwno c; 2vg0tb*o4 concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistance2 oc; 0sngwzovt*4bg*s?


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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 battery. Bulb X is br/ xjke bpmh z3i (s/r4y8hr;db2 fe)2xighter 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 3ebx4/ bexfrdrzmi h; 28/h k2yjs)p (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 the identified resistpbevaf :p:6ytij52 y55v 8evjor in 5 seconds once the c6ft yeyvj5pv82va p:je55:ibircuit 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 res q:5y36jmbk ov*ybc +pistors in the following simple circuit have the same resistanceo :qj*5ck3bpym6y vb+, 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 circui+ rwxhb6g /j9w,ev2met diagram, the current through the 6.0 Ω resist/ emxw2 6gv,bj hw+er9or is 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 R1, R2, and R3 are connected in series to a battery. S3:(emdhu, hr /a-,v. q vy mhevzr(m*fuppose 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 t -v vru,vmr:( 3md.a,ymeh*(f e/hhzqhe 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 a batsbaf qaj-w cfcr0yz)k,b, (60yll32 p tery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current y-s2j l3b0,qc( l0),b6azp kcrayf w fin 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. What is the maximum:qr :g fjn0q /2zw)tzp value of the current under the0pqzj:gq)2:rz /wf tnse 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 designp :lnni93*ed gjuy5or qo73d:; q*z ;-ovobkxed to operate at 120 voltrn; dxl3b9p:n-;yo 3*7gqk5o dv zoio*:qeu js?

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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 ddw g-z6q y/*1:jssff -tjws (uissipating 36 watts of powyjtsu 1:/-fq wd-wg (6f* zssjer?

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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 ironw,h6:g qsc rw( used to press clothes is marked "120 volt, 600 watt.” In nqg:r,6w s(w hcormal 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 byhdr js39i9xzrax w3 (*,0 9de1l jjude a circuit containing only three identical 6Ω resistorsrr3*xdw ,jh(e 9j1xz9s0 ijuda9d l3e?

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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 equihm4 bet *;i xpf-7w*yqvalent resistances CANNOT be producedh;bpi4yqe x** w-t7fm 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 bl+cz-i+ 22jpxm 2o pvke connected together in different configurat 2plcmk2z-po2 +v j+xiions. If 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 resistor is connected to a battery, a total power P +25 ;mon pz5 epep 8liq37wxrbis dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Axlzqe7eb2 +;8p5np3r5opm iw ssume 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 r ay2l.vdc8nd ai3- 2jgesistance R1 and R2, are connected in parallel, the equ8 3 -c2 ljagynidd2v.aivalent 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 resist ,n0c(liiyj5 cbogq5q*vg pr:*ih) f .ance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of wa ,i *b5oiqjivf).cn0c5 ( rhq*: yglgpter 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 diylho.b/iq+cjt)1 g4i,ns ) vy qm 8yo-ssipating 36 watts of powy,-c/bj toyi)+1oq gmsy hq4. n)8ilver?

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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 whecr vc7bl-bl a;(9 jam+n connected to 120 volts. If the price of elecblmbar l +a9;cvj( 7-ctricity 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 toq) 3i5 ofaoilrt9bm(( keep a 100W lightbulb lit continuously fofl5oi)(a qoi3m b (rt9r 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 curro, (zsk *9ewhlent of 4.00 A through a lightbulb results in a power of 24.0 W associated witzle(ho9sw k*,h 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 ow8fna nq.srk7,:r u7t kns a computer rated at 500 watts 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 thunqsn 77t f .:rrk8ak,e 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 form 3(avjsjhx:.ra simple circuit as shown to the righ rav3h:s(jx. jt.
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 resistkm n4d ;flrw1ygt8 vmo 82s4r.ors to form a simple circuit as shown t4mr 2m vdgo.;trfl 48k ys1nw8o 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 i slhk /hb;6.sqdeal ammeter, a switch and three resistors are connected as shown. With the switchh;s6l/kb sq .h 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 battery, an ideal q:2f j0vl p /s ay.omnrf3suh*)h4hb*ammeter, a switch and three resistors are connected as shown. With the switch open as / 4sal2p3hf)n*vso:0 y*.hrmfbhqju 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 amxk /j xk3h5yr1x-6ax jmeter, a switch and three resistors are connected/1kr y6xx5 j3jahkx -x 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 s)otqn8bg 5g3 7 qzbau+hown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisbbz)ogaq+8qu35 t 7ngtors 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 resistance of the circuitn r9b0 -*yfmjx shown to the right with resistf b9ny -rm*x0jances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 idexjaxl8,ghp,ay7 5l-;v:k f gu(pdi ) bntical resistors connected in a combination series and parallel cg)jad8,-u(7 x yklbfpvg 5;p, :iaxlhircuit 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 resistors cu5lb 7-0uq tcdonnected in a combination series and parallel circuit tu0ct-q7udl 5 bo 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 identical. Wn2v*y.esw g c f9/ju nlh.()wghich bulb will be the bvej9u( 2 ..w wfn/gc)l*y nghsrightest?


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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 swi-*kvwcf (x .sitch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 a sv*xkwif(.-cmperes.
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 ammo5cnts, l(9yod/gj6 meter, a switch and three resistors are connected as shown. With the switch ope s,t cnmoo/5gy9(ldj6n 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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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 andk8 im*7wj70q mw gj. jt61aobh three resistors are connected as shown. With the switch open as shown in the diagram the ammeteojj 7 abqhjw8k0t*7i1gw.m6m r reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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