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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 *kncf eqdb 8(,resistor connected to the battery. Which one of the followikb(*ec8ndq f,ng 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 connected in parallentruc;;: oj g5l, the_________each resisru cog5n;:j;ttor 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 filament wxmrigd7w +z*7dwc/, lire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens ricxm,wdz7/* dw g7+ lbecause

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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 lightsg4 hjua0g:a c, are being replaced with LEDs. LED is the acronym for which one of the fagua:,hcg 0j4ollowing 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-sect1i u.0 :ofgq1 :o)s.ocnbdzbc l7prh :ional area A. It is to be placed into a circuit, but it first must be cut in halcuzi1)o17b 0qr.g pch .:bofl:o:nsdf 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 matm92 dn 2w fr tq;essbn3*/esk0erial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resista d 3k02tn9qnbw2sr*e s;m/fsence

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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 h. mo*0 ebagc: xv.avo*as twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y wo.ba mx 0avo:g ve*.co*uld 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. Thisdeu7 r-rj8m x:t *om5s piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material becaumu8rxem: 7* r5so -djtse 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 lig. 9xkxck2 9trhht bulb. He decides to modify the filamen.92rkhtkx 9c xt. 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 svnb,q)cd4o2r 6k; (a,joqt svame material. The length and radius of each resistor iq,()2 4d,coj6 kb q s;nrvtavos:
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)g:nv6 o (aktp, 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 of this arrangement of four resistors? (a:knt6)ovpg

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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 hax3 + rmnzbitsq0 2b:) (ubky0rs internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readingmbz(rt u+k:nb 20r)sbyi 0x 3q 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 r; r5f3q,q*+ym3 rwakgpmrw) shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in g5kqpw3rry rq3;m* af,rm+) w 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 the right. If the eo1ku5n12 a 0jti4 xpecurrent in all thre1 p 0un54ox eki2et1aje 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 electric circu - e57y:vrqakp p)k+aait composed of 5 iden q-ka)ervap :y7p5ak +tical light bulbs 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 followicex+ jhreg.npnn 3rp3l4a( -: ng statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resistanc xpe:r r(n3a l-ep+n h.ncg4j3es?


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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 2nw-oxjjb wy0,k+ 5 whsne76r andY are connected in series to a battery. Bulb X is brighter than bulbsyen6 ,j7 xo5w0 w r+2wjnhk-b 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 stf9.v8 5 t h8.o3;vsmb3zqce-w bynl pass through the identified resistor in 5 seconds once the v tnwqlhzc33s e vt -5b.8s.89by mo;f 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 ci o1kev*3z il+brcuit have the same resistance, which would dissipatez vl*3bko +ie1 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 i c;k-z(ncto0 diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power ci ;zt kn(co0-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 c2rrn;e *2wfbmu)tci+x 3 (vizonnected 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. What is the voltagez r;v2utm(nb x*ife+c)3r iw2 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 resf)i ef icd+-e5istors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R5fi)ic f -+ede3 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 ecor y3a +6 5, i5/cemh(jdrfk;;q 5pi uodx.yis rated 1200 watts and 120 volts. What is the maximum value of the current uhde yrq,f5pr 6cuj 5(+aei;im.;5 c y3/ odxkonder 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 lightbulb,(he jxbaw*0 z0dl7n ux7nqyq4h7*so designed to operate at 120 volts?hx,*z 70lay7x s(dj bqu7nq0noe4 wh*

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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 thro6jjxq1antng 8y ; rn:9ugh a 4 ohm resistor that is dissipating 36 watxq jgjn 6artyn:81;n9ts 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 clot0uqqci bcsw.8tz-7: 6 x nps7ehes is marked "120 volt, 600 watt.” In normal useb q80icxuezps .q6-7:7cwsnt , 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 followin2s1(2 ctcaey:q mdsn(g resistances could NOT be produced by a circuit containin2(yms2:cst( qe1 nc adg only 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 1.0 Ω resistors. Which of the following equivalent 7dkq k3r.f6 uaresistances CANNOT be produced using 3af k.r dk67quall 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 dif)/v+ m2yorp cn7 qh+0lsx:vatferent values can be connected together in different configurations. If all three resistors ar +hr0 /qnv)2v:+psxlay7cmt oe 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 tot/) m3h8 jfekl,pg1q t a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resismlhge, /8k)qpt3tfj1 tors 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 R1ovoqa1k4hsxfc/fel5*e ;o 3 1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements ab;4 1lhakocefs/v xo*q5ofe13out 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 12Ω ye wze4xr 1f5sn5usg :j88s3 j when operating at 120 volts. What is the minimum amount of time that it would take to warzngfj es:5883wyu14 sjr5 sexm 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 currdmjkfz/k (r3 qmh /;n z8/ wpofeu3v-q; wc(0ment flows through a 4 ohm resistor that is dissipating 36 watts of pof(wprem3qq3 ok -df/u/vzw m(c0h m8/ j;;znkwer?

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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 heater3 9 6(moylwdwl draws 13 amperes of current when connected to 120 volts. If the price of electricity is 36lomlyw(d 9 w$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 wodg.5gna rh8n14kphzl- m1b7r ib q546xzni3 ould it cost to keep a 100W lightbulb lit continuously forrh174rd b63ng5 qa.x h8n5z-4ilgk z m o1bipn 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 current of 4.00 A through a lightbulb results in *o)yo ht38mk,j b htk9a power of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lightbulbmj9) bh*k,o hyok tt83?

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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 ownlnb5 v1 oxa;a4s 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 the computers can be operating at t o;b a4nv1xl5ahe 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 fou.pssz333czid.+(yk* hk bhnv r resistors to form a simple circuit as shodszbz hk3h +3.*sk3pcn .vy(iwn 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 f 0b8u rq566dskzjr0h pr6+ew dour resistors to form a simple circuit as shown to the e6r 50jrwd udh z0bqrs6k6p8+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 +d+qg116ltu tn9z sia switch and three resistors are conneq z 11gn+ +t6lsudt9aicted 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 battery, an ideald f8yu493gd anv mto1. ammeter, a switch and three resistors are connectet9u3a4v.1f g8o d nymdd as shown. With the 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 ideaa4r2.xht;ie al ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads i;r2x tea h4a.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 eqj,) vd -2s2h ukvm qalogh2 t-0nh3e9huivalent resistance? Assume that all wires are ideal, the bat s9a2uk2gov)hj3h-vlh tdhe,-qm2 n0tery 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 resistance of the circuit shown to the right with re;j(20/c q :t.am7xsh tf+mj odksnr+ vsistances q t tm/j2drx7:v+jnck +osh;(.a 0 mfs$R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 l(*fe rzz bo8u qfn+/)(xsbb6identical resistors connected in a combination series and parallel circuit to a voltageo) e buzb+lr(xqn (ff*/z6bs8 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 covswk: k18 gn 9,+uwhykw 72expnnected in a combination ser: v8g+ww7nwxu, 2es1k 9ky khpies 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 identg g;z(, ;q,kn)xhg 6tp z-amyamgl0 o.ical. Which bulb will be the br,ga, .;);pakg6h0go qn mlz-txmy ( zgightest?


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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 swit)dpmqxayn i a2a nx54z5dxs gs8-/:ftlf)e 5;ch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter zeisad5/ n8dxapmsn2a5x-f ) qtxg ;yf4 )l5: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 ammen2t9(1g/lj6cmc ln xf03je y5t 3syxpter, a switch and three resistors are connected as shown. With the swit0njmygxc36cnyt125xst (l9 / fepjl 3ch 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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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 sw*8(qoz;pntdp *2u rqh/+ga m5bj dbp: itch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amphp8g;dr(jpoz 2 5 *ndumbqq pab*/ :+teres.
When the switch is closed, what would be the current in the circuit?


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