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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(-oa(ish2i xdd 9nqb, 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 electric fieldsdqix2(9hn ,-ib(d oa 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 parn6lhh25 dh0w :ctat2gallel, the_________each resistor is the same.t5ch n0hdw6gl :2 2ath

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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 filamu(2/ xxkal ec*ent to become whitc* 2(xxu k/eale hot, 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 ligs trx5ec8 u ol./qe+:mhts are being replaced with LEDs. LED is the acronym for which one of the follow /m:.cr+ 8u5 eoxqlesting 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 La2 7+jsi 6;iyz2d4b2vpjbmk0hvek6i 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.hipes02 6i ijdamj zbk k 2;+b4276vyv 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 dp(gvh v:z0 8lmaterial. Wire II has twice the diameter and twice the length of I. If I has resistance R, Ivh0 (d:l8 pzgvI 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 sameqzxpee9xok0; 4nushx 8 r:f9 / material but has twice the diameter and half the length of wire X. If wire X has a resistance of R then wife9;0qn x /x4xoz9 rek :h8upsre 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/ :c 2ea0pi/9hi ri- je;mksaz9zxwk - r. This piece of material is then drawn so that it is/x k-;/rip-sj ew2 e:z9chm 9zika i0a a cylinder 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 bril*yp0gzg d q59ghter light bulb. He decides to modi0zqdg 95*lg ypfy the 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 b ( kw9nmnnb1;resistors are made of the same material. The length and radius of each rek1m9n;n(bb nw sistor 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 topx,:y*:srk sd1 h un gq,ye3r) 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 thinr,p qs1k u: e:)dr y,x*sghy3s 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 i6y0jtk h,n13 gxhx4pt nternal resistance 10.0 kW and the ammeter has i jx gy3ktpnx6h0, 4th1nternal 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 circuit shown to the/pg;sw(v*mide8kz 5 e right. The three bulbs 1, 2, and 3 - represented 8/z;p(vwmgks ee 5 id*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 ci upishw 76yt-2sy:8q srcuit at the right. If the current in all three resistors is equal, which of the following statements must be truew6t ihyups82sq-7s y:?


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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 repres8 g gznjsb 5 -0a88 lplbrar(.8xahh9bents a simple electric circuit composed of 5 identical light bulbs an9r8jragb hhp8xlg0lzb 85a8. sba(n - d 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 fol(wje(gm7 ez5 *lpactu*6sm3 g1vjs-nlowing statements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal resijenwls6-51p*utg*m ( cemsjav 37z(gstances?


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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 serxm u1u 12lfn age,.qb.ies to a battery. Bulb X is brighter than bulb Y. Ass u gnf1lu,m..eab21q xume 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 pass through the identified resistor in)9xt ;v(fbf uj 5 seconds ox9;j(vuft f )bnce 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 thw)+ gl+ye4chpe resistors in the following simple circuit have the same resp)gy+hlw e4+cistance, 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, t r.a)h6 xd8us9,b0vhsur z4bb he current through the 6.0 Ω resistor is 1.0 A. What is the power suphz8 x)rh9.usubrv0,b s4b da6ply 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 / ngf,kv4 .swk7raw xz/w ,.fvare connected 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 o v,k n.wa4sr7.fvgz,kf/ wwx/f 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 differen3;xz ph,3i7n 3tw ycji hc9+fot resistors R1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. Whc+37x;h,h9 fip3zw3 o i nycjtat 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 +1/vw ua/dpuwj7kt) qa/awauwl/5nrh1 q:,x rated 1200 watts and 120 volts. What is the maximum value of the current under these cup5 q uav/wjwwd,a:u7)na/wa 1 qklr/1/t+x h onditions?

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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 resip z77nz*ql x47moll3uz4mik8stance of a 60 watt lightbulb designed to operate at 120 v 78zo7u llkx3iz4nz*m4l7m pqolts?

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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 that is dissipatc0b /nh2xmdg xz(z20 prn j58oing 36 watts of power2z pdh5zj( g0nxonr 0xbm/2c8?

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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 marked "120 vha:m6c et a29l:.s venolt, 600 watt.” In normallnsa62ea : ch:t.em9v 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 could NOT be produced by a m0ndb k( ,(uc+runw:e circuit containing only three i, :nmu+ur ewd b(n0ck(dentical 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 k-uw rz ogc/vs+ 4bu*+following equivalent resistances CANNOT be produced using all three rk4 b sru*czv+o+/-wugesistors?

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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 connected togeijdo /nih 6dd)fn2ty 9a 9y6gr5q6c8f ther in different configurations. If all three resistors are used in a circur 9df9fg a)d/ thod6 2856yiijqcyn6nit, 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 to a battery3uma*ms;fl mk9k6a w; *eiv2z , a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are f2z9m*3lavim; sk k; u*6weamconnected 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, adtl5nkaz,y rl )60 80m 5jkjmore connected in parallel, the equivalent resistance of the mz n 56r,dklkaj85t)0j l0ymocombination 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 h+yv-/ a8ye7n6i pqoki+rs g/w il6bp*as a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it winwo6ie/p -pq8gb*i7rvys / k a+6+ ylould 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 is dissipating 36 wa 0m wag (czqjbk;6:nd9tts 0(cd9:aj;zwkg6mn bq 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 amp)h 9z(:ckt8 dgf(/6cw x(xtsc2ld huzeres of current when connected to 120 volts. If the price of elechczt((dtdsufc(z 8c9 /lhxk: gw 2x6 )tricity 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 cost to keep a 100W lightbulb lit continuj) -nbr2zlv an sv*59cou)l*b-jc n5sn2v arzv9 sly for 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 sg9x 5xvnqk)di+ 69auof 4.00 A through a lightbulb results in a power of 24.0 W associated with the bulb. di+usq)6 xnx99vgka 5 Which one 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 ownsgq-l 6z f/nz1skpd4m2 ;y p1cy 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 the sametim;f4lpzgd1y1scm-qp26 k z/yne?

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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 f1op),vkr7qq77pd xzvtw* y8 uorm a simple circuit as shown to the right. 7v 1)pq8,zdptv7 q r* o7wxkyu
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 four resistors to form a sim3 hwpr*c1z vt; a3*qshple circuit tqa* phv*3hs wcrz1 3;as shown 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 batteryg.olsh7tdsa / (djw-* , an ideal ammeter, a switch and three resistors are connected as shown. Witdsja s* dg/hl.tw -o7(h 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, a switch and three k7hf)q4onw9 )+hb2nry0 kyphresistors are connected as shown. With the switch open as sho)bhyn+h2q ryw)k n f0oh 49kp7wn 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 t4 cuhauaiik n*/ wq-+: /e*m.vntcwk4hree resistors are connected as shown. With the switchm4ina/kc:e va4h niqwc t./*uku-w+* 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 right, what is the equdn2k e ,alm;m7 :qewg7ivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resis7mn e;w q:legm kd,a27tors 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 r0b*s8 5 0u+if4w uvhzdrt rh+ with resis*hdut+84z+ruw50 bv rfihs r 0tances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connectesjqp (.vo9qrfn cck-+ul /3i+op 1ur 1d in a combination series and parallel circuit to a voltag kqu+sc9/ o11qppon+r( jv if. u-lrc3e 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 fiq-;v thz./f zp ka4bpg):ea+eve identical resistors connected in a combination series and parallel circuit to a voltag aeptapf).4 zk +-/qeg;vz:hbe 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 identical. ucu oy*lpni8w- l;;(bWhich bulb will be the brn;- ucuoiw (y;*plb8lightest?


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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 sd,,*i /azw /5p*jwyhvck+yc switch and three resistors are connected as shown. With the switch open as s,z /k*dyy 5*+wai ,hvs c/jcwphown 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 arl )n+nnh8yh (ue connected as shown. With the switch open as sh) hn8nnh+luy(own 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, vfun z7mxi6q;(3.;i5yjc3lrhjq n y (a switch and three resistors are connected a(h m(n7i yqu.nzivy3 fjc;;63lj x q5rs 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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