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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 currenb bzi+f4)eqh 7le8e hpsuex.ob + 0r adqk26,6t exists in the metal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the res4o6b.pefu 7i+,k0 l)qdeab2hbq rx6he 8zs+eistor 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 four9z xydoey39b-h( m6uz k hb,,a resistors are connected in parallel, the_________each resisyhbh9a3 ,-z ( b6uzymeo9x,dktor 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 wire of a lightbulb causes the+(xj)oel. iuw filament to become white hot,io )lex(w+uj . 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 with L e9ekp72ik.g cEDs. LED is the acronym for which one of the followi9e2c.peki kg 7ng 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 graphlbg m6 +iu yn xyk9vg--k54;evite resistor 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 ratio of the new resistivity to the old re v;5iu-l4y mgyg9n be+-vxk6ksistivity 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 halj9 tkk47*p7txtc 8vk s twice the diameter and twice the length of I. If I has kxvl9pjtt7 *ck4 7tk8 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 materiy.xck2*4xd+p , x t.xs ;azzgral but has twice the diameter and half the length of wire X. If wire X hasd +z 4z.ptr,x;.y2xc kxx*asg 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 pid) )t9zf3ar .eyz i-mxece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material beca9x ) .e)-3amfditzrzy use 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 Thomasw(b 1m20lhg dhi xi kzn4-c*ry n:hoqt 29v4z; Edison wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mowdhig zyxtzc92qoh 4n: ;b0in1 v*4lkm -2( hrre 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 materia8 v70nbyli hx p )k(x*2tkd.gbl. The length and radius kv xn* gt b2bi0 pdly.87h(xk)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 ofjw+j 8+s0 ddzr 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 zw+jd8j0+dsr 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 t/ yq79tugp zg6he accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 26uptgyqz/9 7g 5.0 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 circuit shownqe-2ssystfp;rq./ w 4 to the right. The three bulbs 1, 2, and 3 - represented as resistors in .rf-/t2ys;ep 4s wqqs 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 electric4a+6ikx0*pr fyygh 1 ual circuit at the right. If the current in all three resistors is equal, which of the 4ug016 kf+rpxyyi*ahfollowing 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 circuit composed xe.p8lw hfxq/ 9m/hw 0of 5 i hq9 m we8.hw/xxplf/0dentical 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 3; ejx*9uv ; webm3w+0 wb 9sm-m6dikwdgrg,o NOT true concerning the simple circuit shown where resisto egs-;w 3wwdm6gu*dmmo,wxrj39;90+beb vikrs 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 connected in series to a b 2b 5(;h:z,b, afqa5.tb igpd erjdli5attery. 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 ch;iada g d,, z5j ft.b5l(qb: erphb25ioices 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 15gyf w *orha z4 zjqu-+0rp7t through the identified resistor in 5 1yw0 h u*7oazf+z pj-tg4 5qrr seconds 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 t hjka*70ur u+lv/t4w simple circuit have the sam*h4ujr0tkaw +7/v ut le resistance, 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 circuit diagram, the current )da1* fbh:4e-dihqua through the 6.0 Ω resistor is 1 )4qh*de1auhi -:bdfa.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 resistors1im3f* ;q,zqod:7rkk :vc zex R1, R2, and R3 are connected in series to a battery. Suppos :;ircv,1x kdkzz*qo3fm:e q 7e 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?

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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 parallv;od n9tjqv1fsetzk3mi (,if /mlc3/8 4x p 5lel to a battery. Suppose R1 has 2Vop 45;zmfntl cfm89vskq id,ij /1(xl / 3te3v across 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 ther8cpi1o3e r (p maximum varr 8pe 3cip(o1lue of the current under 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 ofedn:ch(a k-9u a 60 watt lightbulb designed to operate at 120 ch (eadk: u9-nvolts?

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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 thatshq tw+ o9t4a( is dissipating 36 watts of poo9athwq+ s(4twer?

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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 clothe6l5tz 78o u*gpuzjor*,qfoa3 s is marked "120 volt, 600 watt.” In normal use, the c* *ofu go53jz87 plqru,t 6zoaurrent 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 produce);b d/xnn v dy huflc;ggz++81d by a circuit containing only three identical 6Ω res+dyubl;c x ; 8h /nv1gg)dzf+nistors?

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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 followf0ibe / 5ax(jt0 ,(u ib 16waeagyi(xwing equivalent resistances CANNOT b0ty ai5i (w fa0gbajube1(,xie(w6/xe 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 of different values can be k1y uv q1wb4c,itw* 7aconnected together in different configurations. If all three resistors are used in a circuit, how many different values ofqc w1iw4 y17v, *ktuba 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 po8eq6pa9ish gvc* w1. rwer P is 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? Assume the iche8qw9 *pi ag1r.6v snternal 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, haviv*q: fdpky o/vb,0n;)isz+ ou ng resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which ofpnq, /i; *b v vk+fsdyo:)0uoz 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 k uhrvj20 +o5 dz*uhr:of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kk huvr odu 0h*5+:jzr2g 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 dissipat b w+m1dd;fixm8j, -y*hkfs-fing 36 watts of powefj+;f s-h-x,km b1*8yf imdwdr?

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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 120 vorn x k6,2olva2lts. If the price of electricity ok rl,6 a2nxv2is $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 to keep axmjgw n-8x8(egl slj5-ib: w4 100W lightbulb lit continuously for 1 year 8wlwxnbs:jmg(xlj e-i g-85 4at 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 4fq/*, naf4 5mcat-r(v+sf mqz .00 A through a lightbulb results in a power of 24.0 W associated with the bulb. Which one of tr f /t+ as4n5qc-qf( z,*fvmamhe 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 on v:vpr +0 a.x+ 0yuht5de:fugf a family of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuit prp evrgd+n:.f05uaxy t+ :vu 0hotected 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 connected to four resisti4 v)f 3h c59nlh6 naw,az1bksors to form a simple circuit as shown t lw1szbhv 53hf 9nn, 4)aiak6co 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 ij,jow x*o fs16gf0yp3w 5ls3fqp:j i +s connected to four resistors to form a simple circuit as shown to the rig jf s3ffyoq,ij160+wwoj 5lp* x3sp:ght.
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 switco3ac8n zx+ab-)kq4(htq ufs 7h and three resistors are connected as shown. With the sqhsuz)4 +(o3n7 fqbax-8ack twitch 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 resisto hbye9iu (,uo6rs are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amih(,96ubu y eoperes.
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 am-1yr-07;deyx fvqau ymeter, a switch and three resistors are connected as shown. With the switcheaqf0uyx1 ;-d yr y-7v 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 shown to the r1jipv/ -pc5zg ight, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have iden 1 5cgpzivp/-jtical 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 witt6: ax xh s a:szj;fvmly1j)1(h resifaym1xt:)s 1h( a j:x;vj6lszstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 con3sle3 x a.fkk2nected in a combination series and para3 k.2kxs3lf eallel 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 resistvpl(u hw; )*ibors connected in a combination seri h;pl i)b*wvu(es 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 ofi6x k o9.jw m33lyb2vc the bulbs are identical. Which bulb will m23v ykl9o.j x3bic w6be 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 tt6w42x sc:z66 t, xcitsmr*jyvh)2rconnected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 iccwz2mr:j2tx4vx)t rsy 6 h,tt *6s6amperes.
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 resistors2h *td/(p a.ie0o.bc9ma ph7a3hln rd are connected as shown. With the switch open as shown in the diagram the3/ ddpnh*c0oe. bhtp7 a2(9r .la ihma 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 *2ee*8 p6wp/4x iw aj.sgaal1 r4hyqz switch and three resistors are connected e x4ay6wiahp/g*2 p aqws*ze lj.84r 1as 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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