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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 s8 *9qt jd)i,bqsfa8 zcurrent 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 es) q8,d8tibfsj*a 9 qzlectric 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 i qbj8:,/levbtdlul1 / n parallel, the_________each resistor is the same.lt:j8bue/b1 vd,l q/l

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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 lightbul*z, wdq y3 m72uegofk fz4l4 di)gg6+eb causes the filament to become white hot, while the larger wires co k4g z,dfm3eqouegd* z+ wli)7 y642gfnnected 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 ligu2, vqzy7hslf*dr9r ;hts are being replaced with LEDs. LED is the acronym for which one of thz7 q,ylu9 s;d2 rvhrf*e 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 7sh :ql l46a-fdx5mki and cross-sectional area A. It is to be placed into a circuit, but it d i 4kf6l-hmq als:x75first 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 v m0,wnmpmj -,II are made of the same material. Wire II has twice the diameter and twice the length of I. If I han -m0 j,,mwmpvs 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 xi(o y)2w0bgdsame material but has twice the diameter and half the len 2( iyd0)xowgbgth of wire 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. This sp4urs5z5,d s d5-g :k-wyu1 vr u/y;shfo-smpiece of material is then drawn so that it is a cylinder h:rrk 4fsd,u/psy su s -uz 5;5 yv-1-w5odgmswith 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 toswm2l/.,jgp*ou: piy kh z/1.2uoe a vxf4s g0 make a brighter light bulb. He decides to modify tw:saeg/mu, /zjvoxy4sf2 phup*i1 . o 0.2lgkhe 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 length andw2*8apsz4lq u 04d+yhksm+j zm6a xo8 radius of 8u0 myqhaw6+s8xozp lj 2d4*+zms k4aeach 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 resistor 6 8(rqoc5ij h:pxyz9us, each 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 of this arrangemzohp95yi r(q8u6 c x:jent 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 inte *a(*hn+ dq*zlu4 ekjbrnal resistance 10.0 kW and thek baj+ 4**hqd*eznlu( 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 1 a0tkrs9jj: ccompound circuit shown to the right. The three bulbs 1, 2, and 3 0c1r:sktj9 ja- represented as 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. I4x7 s+yq gceml6r8c9e f the current in all three resistors is equal, which of the following statements must b6 x cre7y8+m9 gq4secle 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 reprwb;1 1z qhj cy,v /u4gv1k7rhiesents a simple electric circuit composed of 5 idhku vj1c7 1w; ,qh/viry4bz1gentical 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 following statements is NOT true conc n379tvnac6h: jhnoeix.439 m,gh nsherning the simple circuit shown where resistors R1, R2 and R3 are h.379nhgnc ejh 3o ihn4:9vn6a mx,t shave 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 connectmn rb-;wh y xw70g8h5; q+d81esksvcyed in series to a battery. Bulb X is brighter than bulb Y. Assume all circuitw n0e87; ghb xw5y 1k8m+ sd-yqvhrsc; 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 c wb 2osbv,ch96oulombs will pass through the identified resistor in 5 seconds once the circuit was closed?9 s6cho wbvb,2


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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 follozfvlbflq4b y*z49 *j 2wing simple circuit have the same resistance, whic 4q f2ylbbz9jv*4f*l zh 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 accompanyinmegtyfhv:a3 e9 .+ /5opw1lnig circuit diagram, the current through the 6.0 Ω resiswv1hgye f :3.l ea/nto+ 9pm5itor 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 con e(1()m z7e 0jdvqjfhrnected 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 voltage across R3?z7 v j(jeqd( 1fh)mr0e

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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 parnkn9idtgssg)n0re;r d :/:z5 / qk1ptallel to a battery. Suppose R1 has 2V acrost 09kegs rg r1pd)zqdn/i snk5 n/:;:ts 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 is rated 1200 watts and 120 volts. What is the masluap 7jwp/,5xc ed 31ximum value of the current undsucpw jl7x1 d, /e5pa3er 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 designed to operat;.aj ev*1xs;jt i(j ghe at 120 voltg 1jjs.vxhi;*ej;(tas?

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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 t/9gcbpr csom9v0vd+y47+ f6yl +go kg hrough a 4 ohm resistor that is dissipating 36 wattsr+g069fgvbv+g+slcmo / ky 9py4 cod7 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 clothes is marked2s ro;3h f2rjz "120 volt, 600 watt.” In normal use, th3j ;rfzh2so2re 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 pvg,,t:wz. bkt65y, 1 wkltlsiroduced by a circuit containing only three gbw.t,y16kz ,i5 t skw:vtl,lidentical 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 faumj7 / au )mg;+) qugshj+v,oollowing equivalent resistances CANNOT be produced using all three , gsq+)u7juo)mm;j+avau/h gresistors?

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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 zv c5w zher 439n(e2rcvalues can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistan (cnv93ez 4wzr ch5r2ece 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 n e)6. x.5:pm-miukc du zx;scis connected to a battery, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n idenn du;xk)m-.ips6xmc5c :.uez tical 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,o m(n3n18 ppwo-yik6b are connected in parallel, the equivalent resistance of the combination is 5Ω . Which o-6n81knb(piyo p mo w3f 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 12Ω when oc) y5zw1zg. arperating at 120 volts. What is the minimumz a.gwyz15 c)r 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 i+osxtchxgp0h19l -8y+lr7mp s dissipating 36 watts gc-my1 x+ x+08hlth9rlpp 7soof 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 12/:b1riqrg5 sk)qr, -w my6s09zdoc kb0 volts. If the price of electricit) kicss-qgk5r0y bd9 ,w zr/ :rm61oqby 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 cosolksgw-+-ibbb ) s2v3;,xs zst to keep a 100W lightbulb lit continuously for 1 year at a ra kiz sbovb3- ;2sx,bw+s)s gl-te 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 gaqg:it8soe08g 84nent 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 lightbulqo:g ggi80tn se8 48aob?

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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 nwlkikb,w a72m)a 2v8six owns 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 num,2la)wb7 8 amkkw2vi nber 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 four resistors to form a simpy4juzf q.+v*tkm+f8pnv ,z2 ox 8oq+ple circuit as q+8mfoo kpuv q4z*vzy.pn+ j+,x 2 f8tshown 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 connec9nnp 7+t0c5fle-c nd ated to four resistors to form a simple circuit as shown to the righl e- na nc+70fdtcnp59t.
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 thre4eju(s.r/ :bda7k kpp e resistors are connected as show4rabud/k.(e: 7 s kpjpn. 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)iommo lm4sz/ 7hbm2n*f.x9 f, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.7l/ mfx4o 9obnmfs.h)2zm *im
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 a *o,,jtn+3qytm l(pzfs)vr 9mre connected as shown. With the switch open as shown in the diaf q3l9t ryp()joz *vm,m,n+ tsgram 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 shownkcdiq+s:;jrug qp cdr02* y,1 to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisto,pgyj0r dkc1c*u qr2qi d:; s+rs 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 circzq(kxu/ e2xs oojcg as;+*,h-uit shown to the right with resis,x/e*k;ag2z (ou-cj s ox+qsh tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 conne;q1a ba,7 hhhin9ne* tcted in a combination series and parallel circuit to a voltage *7,1ah;qabhen 9hi tn 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 conneb lyv;gj4 wk4uwx5w9(t- uu;hcted in a combination series an uk; u5lhwx;uy4-g9vtww b j(4d 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 /lo*j,7 crsds3o n2cl diagram, all of the bulbs are identical. Which bulo/2olsdr7 lcj* ,sc3 nb will 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 wh acd 9so mt0dh+0rx:ozykv7.o7/(xconnected as shown. With the switch open as r7ax ty9( os 0/cd ox +k0hoz:m.hvw7dshown 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, aox,u oaw17l/un ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammaw, ul1/uxoo7 eter 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 conn( zx r-4oelj0qected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampere-zlrx(oj4qe 0s.
When the switch is closed, what would be the current in the circuit?


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