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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 me2 ip(;jgcg3 hnw/p- metal resistor connected to the battery. Which one of the following choices best gc3i2/ jw(gp-p meh;ndescribes 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 resis1xt) a,zdg6i yf63 udwtors are connected in parallel, the_________each resis3z) iadgw,61 6dfyu xttor 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 f: cucn6k 1ex9of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb rem un1f9 6exc:kcain 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 lw,/us-dy mq;-z 6hdw*f ;c xmreplaced with LEDs. LED is the acronym for which one of tq ,hyc6dfd /mlwx;-u sm;*-w zhe 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 has1gufq: n *6iic0.mx cb x0zvr*2cbof, 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 rabcm :bxccr. 6n* ,ofi xqv0i01ugf2*ztio 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 ;x9; cggk*sj4zm laew2 ; bw1jtwice the diameter and twice the length; j x;*4gm;29ce1j zwbalwksg 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 o hkn3 y4 d5*e; kqt uwyqp76n0y/e,lmif the same material but has twice the diameter and half the length of wire X. If wire X has a resistancmyy t;n y 0wlk/ n75qq4p,k36h*eiudee 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 piece of materiall*tq789v2 m 7zijq3cm5 emuwc is then drawn so that it is a cyc7 mqq 7 ecmvi5mztw* 28l3ju9linder 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 light bulb. He decid9xkn1:lfn;h des to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb producl1k nhd :fn9x;e 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 mate ro7f b6e(; mybzre3)wrial. The length and radius of each reze f7mrb e(y ;r3ob)6wsistor 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 ret p )4ab 8 1pt)vbcsdhz60cw*ksistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination ofdt10c )t8hcpba *sv b6kp 4z)w 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?

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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 internal resistanc jh4mm 2uji ;81qobco;e 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearmuh;m oi j1j4;boc28qly:


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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 rige-uo 2; fepu8hht. The three bulbs 1, 2, and 3 - represented a;hupe- 8ouf e2s 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 simplec;qglt7 mk g54 electrical circuit at the right. If the current in all three resistors is equal, which of the following statements must 4 tglgk mc7;5qbe 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 co,:1v8 ozb uss+xwt5mn mposed of 5 identical light bulbs and wx8z s15vo:nt ms+, bu2 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 followingmng2s0 8q ,cgt statements is NOT true concerning the simple circuit shown where rqg ,cm0ngst 28esistors 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 e ce:f 2 eacji49g1*vu2f5fwqare connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are cc4 ga fqe2:if5*fwu 21ej9evideal. 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 (e5h2dz ++th :x9eoqmnbw 0yjzpc,9sv-xzo ( pass through the identified resistor in 5 seconds once the circuit was closedv9tsxd(ch 92wb ,j+qe+ y - 5xz0zpeozhom (n:?


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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 circuixc7; z9jm pg1k+vj-/vblq i 1a,dgpg-t have the same resistance, 1jz9, ggp 7-d;jgpva1-iv mxkc/bq +lwhich 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,p6l jo)j1kc *i the current through the 6.0 Ω resistorjpcj) lk1 oi*6 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 connected in series to rr db+y+uk8glpx .g54 a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 disykgrb+.5p x8ugd4 +l rsipates 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 connectpd2 n ),hnb.h i9 tp0*gmsui+ved in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R09bi+ngmt* hv2,dhsunp. ) ip3 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 z k r(bqxen7+i 986adbvi 6eg81200 watts and 120 volts. What is the maximum value of the current6krn bq+b8ezi 7ag(id9xv86 e 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 of a 60 watt lightbulb designed to operate at 1bn:p;rvlg w5bvz. n1)yy-hq *20 vl. -*v15zwqn ;hrv pn:yb gy)bolts?

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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 curreni:) y kyp xr*6m3-fnzkt flows through a 4 ohm resistor that is dissipating 36 watts of pr *6: znx3iky pkf)m-yower?

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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 clothx)z 9j2 uj8:j3p+vkp yc(l t(,0pwsixqt4p a fes is marked "120 volt, 600 watt.” In nol ypuf xc(8jz ivj+3k atjs42pw9 ,pq(:0px)t rmal use, 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 co-k*1yz xb d0kruld NOT be produced by a circuit containing only three identxkryb 0kd1- z*ical 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 folxg +mt0 s c)bnjcs. dwc1 zf269f(lf,jlowing equivalent resistances CANNOT be produced usj.fs0gd,w mlf1 6zc c t+s )cf29j(xnbing 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 ofz7f i-im kr1 /xpg+yg. different values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistanc1ziprfi-.7xm+ggky/ 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 connected to a battery, a ,cq0 pg nux-g+v/,x rrtotal power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identicag+cxrx/vun,, q0grp -l 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 ,sg94kol4oj p i 4wk(wy,4 -)oszcvou, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statempjozsoy-o,vk,449 (4kwo u wsi4 c)lgents 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 ws,ox*l ): z2tsnhg6zl hen operati)st,6 n ghx:*l lzzso2ng at 120 volts. What is the minimum 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 rz ozy(ev j0.dq/x6 llg;--llaqm+r3a esistor that is dissipating 36 watts of powe/z (+ oxgady.ll0;jq-3-azl erl mqv6r?

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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 obn 1e)csq: :zjfu )- ,8qafzb120 volts. If the price of electricity is cuezqn) ,81qfsa-bob :zf:j) $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 y42nda4 o-wud cost to keep a 100W lightbulb lit continuously for4u wyad o-2n4d 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 izwzy a,gxf:zs4bg/p ;9y:ibnh)20 a.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 lightzy4bzyz,hpg)gb;902a: wx n :fisa /ibulb?

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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 ma*pcxy.3j azn +p.8w4 aek v2of six 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 number of the computers can be operating ywpx*82+ zn3.vj4emkcaap a.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 o:f5 )ojo) yij -d*v9y;vmsh nconnected to four resistors to form a simple circuit as shown to the righvo9-jmyv5shdoy;njf i o:*) )t.
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 conntn. e,tvdpjki s32z9dg 73 m,vected to four resistors to form a simple circuit as shv932pm svtik3dd , en7g.j, tzown to the 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 switc9q-ii p keonp3 f5 u*)hqawb/4h and three resistors are connected as shown. With the switch opeopap/u5wh *i4i)nf- 3 e qkq9bn 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 smtr6s cp9 /.zwwitch and three resistors are conne6p9 r.tw/sm czcted 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 ideal ammeter, a switch and three r+xs2fu. fprjhaa0j))n s,vx8ep*9rsesistors are connected as shown. With the switch open as shown ar9ss u+rj h svf 0*, fxnej)2p).8xpain 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 right, what is the equivalent resistancebb(k5 0 iycuy,gjek ;-(,zxvqc o-7fa ? Assume that all wires are ideal, the battery has no internal resistancex7c,y(uov qiyb;- zkjfe5,kg (ca -0b , 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 resp5o quamg.i+; lfx zou6b6q6-ista +o6qio6m;zf 5ua6 p-xluqb.gnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 belowy7093ri8w/y5z+yt q j iiu fml shows five identical resistors connected in a combination series and parallel circuit to ayqml +z3iy/w u0rj7fi5t8y i9 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 identicals3(+var+-e v3wd.d4hr e 8k p.xuleyu resistors connected in a combination series and parallel circuit to a voltage sourc (ud8w.ed +v+rxysa.eu 3hl3 rv4p-eke.
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 dia4 ) w.dbh4ghtagram, all of the bulbs are identical. Which bulb will be the brig)a.dt4wb4hgh htest?


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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 resikbv 7*yam d-gu imi scs)2;z+.stors are connected as shown. With the switch y+sgmu7 .;abkmdzsc2- )iv i* 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 idr/q*d57jps2 gci1wq beal ammeter, a switch and three resistors are connected as /bi5w172 rp *dgqsjqcshown. 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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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 resista czt bj2hg50mi+xd2i.a1x.fors are connected as shown. With the s 1 mfcz0abaidtg+j2 xi5.x.h2witch 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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