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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, anu9- dc)jnfh+-z lg0ti-- p mxl electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow th l-c)g--lz 0uh x-f+tdpjim9nrough 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 residlp5zigqvdzxz*1 z* ef; 64b1 stors are connected in parallel, the_________each resis;g v ld4b5z1zezq*ix1d* 6 fpztor 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 pl3 jx0nis4*4hlfim +thin filament wire of a lightbulb causes the filament to become whitehsm ljni +ix 34p40lf* 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 lights are being replaced wi29 .iepqsqw:sth LEDs. LED is the acronym for which one of the followiqeq:2.ws 9p sing 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 kxzg f/68:uwoA. It is to be p8wx/ :ofuz g6klaced 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 II are made of the same material. Wire II has twice thg6v1u6gax:dk 4h sut )e di6 :v tg)x dk46saguh1uameter and twice 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 but has twice the diameter an.jd(4 ,flr (prucg 2jzd half the length of wi.crz gl ,4(uj(pd f2jrre 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. Thin6dwdrnc,c4z3fp q3 1s piece of material is then drawn so that it is a cydnp14w3 cqnfd 6,z3rclinder 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 brighter lightcjo lu-5a7s8ax +6ek5wacm 3f bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at a given voltak7u6cjew8m a5 cxaa+-f lso35 ge?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindricalr66o/ze+ j lfmdu4*md resistors are made of the same material. The length and radius of each ez r4l d+d ofm/6*j6muresistor 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, eachx chvk d ,xz5so i41v/rt5u+j-(2yhji 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 resistors is connected in series to a fourth resistor.” What is the equivalent resistance ij2vx x-(yhv,+k1o5hds/cu5 zt ji r 4of 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 in8yhj4vn ixlco*e w; 21 the accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00io*y1wclv28 4xe;njh 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 three bulbs 1, o. jrc+3swbf7p/ fh h,2, and 3 - represented as resistors in the diagramph b./h3 ,jf7ow +srfc
- 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 circazeg 9mms/g .4pm0g .guit at the right. If the current in all tmg0 am.9zsegp./g m 4ghree resistors 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 right represents a simple elvf /v7v x)t7nxq;d4k1b maba0ectric circuit composed of 5 identical light bulbs and 2 flamx1bvk;a7ab0 7n4/xtdfv)v q shlight 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 followingv 46os;p4+an 2doadll statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal rodn svpl4 lo62 a4da;+esistances?


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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 z pp, uaa(d ofpz4t9).series to a battery. Bulb X is brighter than bulb Y. Assume all circuit el( fa,ap 4pzz) pdo9t.uements 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 through the idenh l2( nxx48oaotified resistor in 5 secondo8 ( 2lhaxxn4os 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 the following simple circuit have ta4 p96xfbvkj+ he same resistance, whi 4+va6f jx9pbkch 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 zmh o fp4*ay1 uzz64i8current through the 6.0 Ω resistor is 1.0 A. What is the power s4 puiz6hoz*m81y f 4zaupply 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. zo8hwczr0w0 gk:qhcd 0*-f:a4n+hj( kozs 6fSuppose 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 the voltage across R300:h6dhc-4( kqrjfw+oso z0wf8k:cgn a* z hz?

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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 connectd:9s7svrg ea 5ed in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What issvdae 7s :5rg9 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 120 volts. tpm 2nji 76ci; What is the maximum value of the current under these i6p;2icmjtn7 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 lightfjwhn n2td /-.bulb designed to operate at 120 volts?hnwd f2/jn t.-

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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 curreuz-pv2w n6(fgnt flows through a 4 ohm resistor that is dissipating 36 watts of - (z vf26ugwpnpower?

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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 clotho;i)tbx9r sa+ es is marked "120 volt, 600 watt.” In normal use, the current in i+ sbxrt9;o ia)t 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 followingt)veq8ax9(py; a4ic ;u5:p edov; pxwtv0n b9 resistances could NOT be produced by a circuit containing only three identical 6(a9y:8tp4p e95cix tvvn; ;w ;pdo 0uexav)bqΩ 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 follofhhmmiqb-9te 9( 0jt:yb65lowing equivalent resistancesl:q itobjet9(5hm 6f yhb09m- 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 resistoup9qi.8 pbsu6/w771n yhc rf frs of different values can be connected together in different configurations. If all three resistors are used in a circuit, hbiy7/c 6ps1nr 8phu9.7qff wuow 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 res c:6gg k+x adu-bu2o4sistor is connected to a battery, a total power P is dissipated in the circuit. How much total power iu 6og4ukd :2b-asgx+cs 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, having resistance R1 and R2, arj k-wzh/x+.oyu v67dcx*j a*(o 7ff vge connected in parallel, the equiv .gafxo*dh 7 kjv (*uzf x/7cyj-6o+vwalent 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 resistanc/w)o .hca, gka;m::tlpts hb. obf;2x e of 12Ω when operating at 120 volts. What is the minimumt:2)f ; lp.sbb,ahx/h om:twaco .g k; amount of 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 resistor that is dissipating zsfe -kqaq.s3a-)d5 u,sg ;gpe e5dq636 watts ofdse)q5gg-qep dsau 6 ,fqe;z s-5a3.k 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 whho79g t 0fd:+pwyg 3lwen connected to 120 volts. If the price of electricig:w ydf w9l0ph3+7o gtty 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 w p90on-xy6f rgould it cost to keep a 100W lightbulb lit continuously for 1 year atgf xp6rno- 09y 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 results gfmv6n tp1fl;:wt5*y1m 6wk nin a power of 24.0 W associated with the bulb. Which one of the following choices best represents the tnf; gl15y6pwm16n:w*fk tvm 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 azism8s b .qh0-t 500 watts in a 120 V circuit. If all c -bshqismz08 .omputers 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 battery is connectxyaks-b u34v k8 acg9-ed to four resistors to form a simple circuit as shown to the ri9g3xbc- u-kysa84ka v ght.
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 form a si0xdq l;g(27t3xz anqs mple circuit as shown to dqna7szxl;3q2 x(g0tthe 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 resisjjf 1d/;r ot/ 3lqzi7sm9wd) stors are connected as s 7jdt3 s;19zqo/riwj/ f lm)dshown. 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 battery, an ideal ammeter, a switch and three resistfgsme07 *h k4-;u6 c w/ohtjreors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.t 6 s-wgh*c0 4e/rhmu7fko;ej0 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 are co1p4w7osiw.ay7xh kb +j2 (fy8jo wq/onnected as shown. With the switch open as shown inwo/w wibf2x+ op177ah 4ykj8sy(qoj . 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 rbomwf 6*w8clo7 :icf 22l-vynight, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R olmov- b 6wn7lci8f*22 :cfyw.


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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 shownvpe g/z ,kvcs ;0e*f2d to the right with resistav;,ve20 gz */pd fceksnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistorz i, ijte2 1x*wm9i)z*ungc5u5 fb /ums connected in a combination serbme uuzi* *,x 25cjg19izmi5tnf) u /wies and parallel circuit 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 connectedlzt7.8o 4,j0eoj6k rxgm jzer+ y6cc, in a combination series and paralt+yxkjlcem46oz ,zgcjrjo 8.,0 6 7erlel 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 kodt xva 7 ab9*ljz /ps0y()5hthe bulbs are identical. Which bulb s*dt/b7y(x j0l)a 9opzhka5vwill 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 switchlohgx5wh :i+; and three resistors are connected as shown. With the switch open as shoo:h +g;w5 xlhiwn 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, /tn-6; m x0ytlu; iizaa switch and three resistors are connected as shown. With the switch open as shown in the diagr x06n-u iz;yltm;/at iam 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 con3.vzjgycth)u76i10ioy9 p pnnected as shown. Wi.)i y3910 pcg7pu6tzivjhyonth 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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