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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 resistor : *hvn3mc ix2 .oxatk5e1h.nzconnected to the battery. Which onhe*.h zv5nt . inkxc2axo1m3: e of 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 connected in parallel, the__)a ijllj5f*3 -6avy ir_______each resistor is the samejya)j63v5l fr *ali-i.

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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 wire of a lightbulb causes the f yaicg(cas oq)kz0357ilament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happens becac)(3i5sq7 0ayg ockzause

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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 ar* afs* 2xp6fjke being replaced with LEDs. LED is the acronym for wh2p* as *xkf6jfich 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 res6nl -kokx72wnistor has length L and 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 wln6o- kkx2n7 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. Wirjj em2-0xa:tk*h d.gxe II has twice the diameter and twice the length of I. If I has resistance R, II has resistancexjk0eha:tg 2*xm.d- j

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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 bu )mbx;s9/llxaygbk4; n3- bfkt has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance ofbl l;)xbf a-4gk;sybkx39n m /

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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 resisd-uno (lfjt; he:7/cc3fyb;z ehb (.utor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this materio .fh (uf- dbu j/3bylczne(et;;:7hcal 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 makep 2e1a/q2z.psh2m nb k a brighter light bulb. He decides to modify th h.n/bsk1q222map pzee 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 are made of the same material. The lenguqo(,(2a0 81aw uvis9 g3ayxkzcve+yth and radiuseo8a2kxau9v s13w,iv uc0aq (g+yz (y 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, each of resistance R, are connected to a batterv64zw4cu*i pyy 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 res*4y4 uwcvzi 6pistors 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 hi;urzr3e4,(y yrpf q 0as internal resistance 10.0 kW and the ammeter has interz , 4eury;(fq r3pyr0inal 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 circu)d-j/ingq+,fgc3 mw eit shown to the right. The three bulbs 1, 2, and 3 - represented aqj-ggf3/m d ,iwec+n )s resistors 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 the right. If the currentyn1t0qt*)b o) rvi b+u in all three resistors is equal, which of the following sbur n)+ qyti1*0btov)tatements 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 ciuopq3p;zh9f /( so 0cjrcuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulbs)3oj09pp (u zc/; qoshf
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 concerning the simple (q7tf7lqm3b6q ssei 57gepk5circuit shown w5psm7qb(3ltk 7es e ig56f 7qqhere 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 X andY are cobk*n7 n (ia 2dzk*j0v /vdmcd3us f zqq95e;6vnnected in series to a battery. Bulb X is brighter 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 b*(b/v i7d uv*9dce mdqnjn6s 3a2k5kvf;0 zqzest 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 2apmhr7yl: 4t d,gddt;1:k ro pass through the identified resistor in 5 sepg14atmk2 :ydl drr,h;d 7o :tconds 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 m* in7fkcygkh:7((9te qy9ntin the following simple circuit have the same resistanck 9(ynne: fqyct tgi7h7*9m(ke, 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 cir )txz /krlda,4 f6uz*y -wg9alcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V,*a6w zluzkd9)lxr gf4ta-y /?


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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 R1yb2:1y+ zqqrf y85xlj, R2, and R3 are connected in series to a battery. Suppose R1 carries a br2q1yqy+x8 zjl :fy5 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 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 wro ,-ob+s6h- 1c/ hcd:ia cvq(ljve4to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cur alv4w/v,oeh(- bo1cj- dsc+ ci: 6qhrrent 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,v:yd:te /no sumjr 9- watts and 120 volts. What is the maximum value of the current under r 9- :om,:tnue sjyd/vthese 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/ +b0x,as vftf:s-kjvi x9fe+ lightbulb designed to operate at 120 vit x+v0ja/ , fsffeb:+kx9 -vsolts?

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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 d4ge7b. t.o wy4 ohm resistor that is dissipating 36 watts of po7t.yg4eo.d w bwer?

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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 iitm p, 4b,u3cfhz5 cl9s marked "120 volt, 600 watt.” In normal us p c3uct,,54fl ibm9hze, 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 circuv3. e+vyoj jz8it containing only three idejz v3+.v8yeo jntical 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 givenl yoni7 bnuj,-;gp)z. three 1.0 Ω resistors. Which of the following equivalent resistances Cz,ng yl-un7;pj b.io) ANNOT 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 ofbma09 y:ljo. i different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanc o:b0yj9ml ai.e 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 connectezb4us)w -whn e;0 awt/d to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using t-we0 4wzwsanu)/b ht;he 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 paralius,2go)6q9pc7en kf lel, the equivalent resistance of kfi7ge),s2u6n 9op cqthe 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 h0 pb 6lwn/siw.ccpb4plj x,9 1 h(n:fkas a resistance of 12Ω when operating at 120 volts. What is the minimum amount in 6lwj:w/lcpspchb(f 4kp0 xb9 ,1.nof 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 fl ms*dt(q6 mh3lows through a 4 ohm resistor that is dissipating 36 wattsmlt*h(m3 6sdq 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 connecte4w:4debe eq 1gd to 120 volts. If the prg: e4bd1eeq4w ice of electricity 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 h-/b v )j.beqof: lib4)*zx lzlow much would it cost to keep a 100W lightbulb lit continuously for 1 year ajzz bi/ ov*4)q:f xl-.)lblbet 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 a power of 2-od ;t4k-2 zco,vuhqy4.0 W associated with the bulb. Which oq y;ookt4c-dv, z u-h2ne 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 (gh mq4tctzjd/.x-z 8 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 maxixtc.d-gt8mh4/q zj(z mum 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 fo5bk4yu*kfy bqq79z,yur resistors to form a simple circuit as shown to k5 buky,7yqy*9q fz4bthe 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 batteai0(1zm fe5 j/ ul/e8uy;:xs t qfijr1ry is connected to four resistors to form a simple circuit as shown to the rijy:eauur/j zmqx/5i l1tsi ff ;e1( 08ght.
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 swiy;ok0+ e wt1ej5fw- autch and three resistors are connected as shown. With the sww;kf0a w+o1eyteu5 j-itch 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 a ci2a3uo8unp-(8 +s*e5n/jenwo hlx kmmeter, a switch and three resistors are connected as shown. With the switch -*pn oo82ek3hanu+ex ju(w 5ni8s l/copen 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 id/pk 2r5h/ucekeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes/c/p 2k erukh5.
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 rn cnu3*vfmj9 8l9n ve1gh1 s4eight, what is the equivalent resistance? Assume that nve31 jn 9nh9vlg cs4* fu18meall wires are ideal, the battery 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 2*rj ,llps eq,:5wwywshown to the right with resistanwswlqye* rw2,: l ,jp5ces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected in a combinati 7de7bj;oqp.0g vhk*y on series and paralydbhp77g*0;ve ojq . klel 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 connected in a combina 9fw5y dasp7l.dy;u h.tion series and .5sh; fda wly9 u.pd7yparallel 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 dia t7hc is7h0ocobau.d+qeg3 /7gram, all of the bulbs are identical. Which bulb will be 0h773dsc7q/oge ht c o ub.i+athe 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 2p543hf pmgkj and three resistors are connected as shown. With tf4p 5mk23hjp ghe 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 resistors are 6q0arvh78emi 4ez5 3lg1t bmnconnected as shown. With the switch open as shown zt850i m1gereb 7mq6h n34valin 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 aam2 *6,,ux tc 8xq4vs;cmmftr mmeter, a switch and three resistors are connected as shown. With th ,c24xm t;6 vs xu8qm,fmc*rtae 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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    总分:50分 及格:30分 时间:不限时
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