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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 e62l yxo98e-9fsix 9je yfsj,txists 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 directfl9 2989, j oyxiyx-se6setfjion 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 cnl8loke,17g7 v+xei6)e alue onnected in parallel, the_________each resisto v ek7i e8 x17nee)o,lg6lalu+r 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 thingpesyd)2-vt 0pved95 filament wire of a lightbulb causes the filament to become white hot, while the larger 05t9 -2)psgvdedve yp 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 repp y2p2x ky,j9ht,e4 c;kp 6qdklaced with LEDs. LED is the acronym for which one of the 4 k2xqyt k69py,pp,jkedch; 2 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 and cross-section jvlulj35aw 9:al 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 resistivity of the cyl3 wuvj:l 95ajlindrical 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 h8o0 7p1i (gon)xge 0is4)o5gkgluaj fas twice the diameter and twice the length of I. If I has resistance R, II has resistai)a 0egko4gn0j5 u(s igo) g8x1olpf7nce

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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 but has twice ry9llm9z v cz:hh(u*b snv:+5the diameter and half the length o:c+v hl*m 9rs9nlyh(v ub z5:zf 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 piece of mam 89iwt5n/ftk:vs l+ mterial is then drawn so that it is a cylinder w5fwtm:vl/ + 9i sn8tkmith 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 bulbgj* )b: eiqzgo8m2;q g. He decides to modify the filament. How should the filament of a lightbulb be modified in order;imgebz j8 qg2)gq*o: 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 8jtmigkrl ah8-a0mb ycq-. v514 , k7djtuaq+of the same material. The length and radius of each resistor is: a8a7k1r d,0tm baum c-ky+8glth5qjq j v.i4-
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 Rsw .pucd l:)b:e3ee(- zprz6m, are connected to a battery in the following way: “rdczp sl)e .3: (:e um6pewzb-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 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 circuita h-;ncqf /s4b/u8jas diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Tu/s4anqs h/j c-afb; 8he 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 right. The three bulbs 1nc( serz9 ngt519pr/ 4dun+ dq, 2, and td 9+npn4s uncer15drq / g9z(3 - 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;c,k )qull 3m /p)1ag f7j)g;r yrdagf circuit at the right. If the current in all three resistors is equal, cajgy)7g3dlqr;,f;)1gm/kap ru f)l which of the following 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 simply9+wdio mv2 ie9sq+ k0e electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Whichs0v2+ mekwq +9i9ido y 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 statw7v(pgo; y 0sdosz4.eab 7( jsements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are a;o7j(( dy 7e wbso4 pzsgv.0shave 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 cd) tx1pz9d qe-onnected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. Itqz-d )px 9de1f 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 a(ypk*pwqqarn, gb)d;l0 1 7t5 seqd ya k;1*n ,tp7g0lw)bp rqa(conds 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 ln:li; xwri x(x *1u0s simple circuit have the same resistance, which would dissipate the greatest po i1wx(r0sul;xx ni*l :wer?


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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 diagramszdr3 g; u52+evtz,wnyttk wl/ 8jy., , the current through the 6.0 Ω resistor is 1.0 A. What is the power supply/3gj zzw5.+yyt8tvw,n ts l kd,e;2ru 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 connec8yn( g*v0)sshbam1wan56jt fted 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. W (tgws a8 sv)hn60af1ymbj5n*hat 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 vgnx h tlbb/hbiw -,(16w.tiv a -)o/tin parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipatbiv1,x)on6gl/ iwav .th-- b(th/b t wes 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 id c8k-ai:y*ro50q j izs the maximum value of the current under these conditid5c*:arzy8iq i0j -ko ons?

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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 lightgm;*,g-7 hqkqy bz4qubulb designed to operate at 120 vkg*;myg7hz,- q4qqbuolts?

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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 in bgmb).cq+j1yl7 p q,s dissipating 36 watb+7 qj.p)lc 1my qbng,ts 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 marked "120 volt, 6ii,/gi/hgs-n ms+q*i s+ fgi:00 watt.” In normal use, the current in it is:ismsi-+* gs gn, +iihg/ fiq/

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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 r0o ;t0ebx8y j7 lu22t+edtofhesistances could NOT be produced by a circuit containing only o8xof0l e+0;t722u h te dyjtbthree identical 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 foj fihqxjb aih .y1)57.llowing equivalent resistances CAN1hji.7qhay )j. fix b5NOT 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 of different values can be connected together in 5 b)gr zzx/u2 mvlhuwm5t8 /g(different configurations. If all three resistors are useg/z b)um(2/ vw8h zut5g rlm5xd in a circuit, 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 battery, -6;v457wdm4 cwopft :.;fyec xtfwxt a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resisw4v; ; xt6w.c e w5fcfmto- pt7fyd:4xtors 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, are connec(hrq7qe b(4 cd0z;vj1 g2.flrkhb 0h cted in parallel, the equivalent resistd4h jfghc1ecl(k .0bq(;v2rq rb0hz7 ance of the 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 ha 9rulap 16e(pclj38fb) hf kg 6zok3:us a resistance of 12Ω when operating at 120 volts6p39j)3ol b u uzfckekg 6al8(1r:hpf. 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 resistor that is dissip0p omf:nec+j ;kemq04 ating 36 waqnc:0mf+p4 o;km0ej etts 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 connected to 120 vlb oii1m-6 g lnb1smhr8-*0okolts. If the price of e0m*b ok6 r- -lh8mb11slgio inlectricity 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 lizwjui)6ytl se86e-lhz o -)iy638iop ghtbulb lit continuously for 1 year at a ratel-) -e)8i36e6pwohsltz oy 6 iu8ijyz 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 ;b0h)6 ccxyctfxa/5x in a power of 24.0 W asso5xx /) ;c0h cxay6fctbciated with the bulb. 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 29l xl/so20j nlq,v rpw,nau 0a family of 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 computel apxr n owl2v0j0 n2ulq,,/9srs 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 cob/ebrx 9wogcw/)qy/r, sm5-e nnected to four resistors to form a simple circuit as shown to the rig em9b,5 so)rg/wq-/yr /wxecbht.
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 *wd7d7d7i q pk+ysme1)h r 3duform a simple circuit as shown to the riwr k 7d3yei7 phm7ud)qd+*1sdght.
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 szo zv4aa2*cy;wxng66 *.mt bmwitch and three resistors are connected as shown. With the sncb6zx 4vam*6yawo*.t z m 2g;witch 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 re5o tj v2b,3zvgsistors are connected as shown. With the switch open as shown in the diagram the ammeter re,2o5bjv zg v3tads 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 switd uydb(ov9+7 phkrsu)i,.l t)ch and three resistors are connected as shown. With the swi7 uu).o )(,ikd dvrplbs9 yt+htch 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 uhk3b d4( t*s9aye0s j*3swv m- 1slfsright, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identwk14s*elju3sa* db s(hsvt0mf 3 y9s -ical 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 rebt : 9rl rsuzy7j-pt.9sistance of the circuit shown to the right with resiur9z7:p.bj ys-lt9 tr stances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatd h pf l44-ypue5ust+k140 )o) eidxrtion series and parallel circuit to a +)x tydrklh fp- udei4e415s 4u op0)tvoltage 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 vy6m* tuqm9k.in3hzi 9p- q d,z)dti (resistors connected in a combination series and parallel circuit to adh)m zn9ikzqi3( dtmyu.9q i-6*t , vp 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 of the bhpcy)qo)o02smu-97)gbz x4gd za g 8rulbs are identical. Which bulb will be the brightest? -cux m7)ah)oqzg028dy)rg g9 p bozs4


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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 id m.nbcqwoowb+x u2) ok5.p+/gk4 y9n ceal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in th/b5ob)c n+2 w o9gwkxc+p4k n.u.myoqe 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 batt:+u ,5r zpxoxror+kh*w(ha 9 iery, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagramw huz5x+ikra(,rx+o pro:*9h 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,o6d 4n( r6ep0w 4rd: 6yufbs:xa.afut an ideal ammeter, a switch and three resistors are connected as shown. With the switch o:w 6 r .uep6r4(ffd6aboa :syn0utd4xpen 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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