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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 resistuv.qia. )nx z w6diz4b oi,1- zn8m(ntor 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 fiel 4zn1(xo imdn,ba-)vi.tqz.n 6uwz8 id 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 resvi29 )dks 2wmy45 f:gw gts9ysistors are connected in parallel, the_________each resistor is the same 5yif9 2wmt)v4s9:2ygwdssgk .

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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 wiren9;mb qkgs 8yhx -)b4tyh d+f3+wkou3 of a lightbulb causes the filament to become white hot, while the larger wires connected to th y3x-4d nsfyogh);+8ub3bk k+ q m9hwte 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 repxj5 / zov k:+eza+vf15g wp:xmlaced with LEDs. LED is the acronym for whichmz/ +1jfxx zakve5w+: v:gop5 one of the 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 res;9uv 5 :wen:lsv k jvem1m.e9kistor 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 resistivity of the cylindrical rn;m v9euve:. kwkl em9:1jv s5esistor?

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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. Wirm5vdgn t/89qb ) whscup17z3l e II has twice the diameter and twice the length of I. If I has7zc59t pv uldgn) bms38/whq1 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 material but has twicjm 0u-rd:+ sxae the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would have a resistance of+s rdu :ja-xm0

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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 7zo -4wl5puuo 2kn,ovL and radius r. This piece of material is then-7olz4 uu von,pkwo25 drawn so that it is 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 bri+wui5 8 btxj 4wxnj*w/- w*ffvghter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbul fxx 5 jtwwwnwjib v-8u*+*4/fb 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 cylindrs,6 3tzejw du7(z:jf7uia 7yo ical resistors are made of the same material. The length and radius o:73tuzaijy7( ojwu dz,7fs e6 f 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 of resistance m-h3 y/2qfk6f5dy mhr)r)aw k us:u0vR, are connected to a battery in the following way: “Two resistors are connected in series. This combinatioay hhu-vdu5kry q 0fwmm:/32)k )rsf6n 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 circuit diagram has internal resi +ge:20wzpq u.qal /eistance 10.0 kW and the ammeter has internaua2e qwi./q+p0l:ezgl 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 cuscqki a 7:w61ob:iyx s .(0ojircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the diagram 6sksi:x:(1oj u 70bcoqay i.w
- 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. If thqzwvbd ; e6z9p + unt9t75yfj)e current in all three resistors is equal, which o;9j) uftwqe6py nztz 9v7d +5bf 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 simple electric circuit h mo3+ yq,2fqs3vwco-composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bq-cvfq, w3 2mso3hyo+ulbs)
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 stata 9mihb0 e-g0du sq3ks7kdj: ,ements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equa-0hukdj q9a3 7 : eb,sgs0mkidl 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 wo2 owq4zoa4ra6tf .4ip/v1mbattery. 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 baf 1 ti2p.aoo6 q4r/w4omwv4 azttery, 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 coulom6en1 dj:xy2m;hcl -bi bs will pass through the identified resistor in 5 secony c-i;h j21d:enb mxl6ds 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 folgu0: bxw7qy7r lowing simple circuit have the same r:xw7u gq7rb0y esistance, 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 cibo6fgxw k 4y9r9h /vt4rcuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage Vt4x/y bhg9w6v 9o4rkf?


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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 Rtrl(32vtky5c.zn61m vk+ n , dmow qp21, R2, and R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissip2.vd ctzp(2v6w 1 o+ n ,ryq5tm3kklnmates 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 anww3qm j*6d93c h8nkq ndR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What 3dj hn8*qq3w6c wn9mkis 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 maximumi2gq t8ti1/rg value of the current under these cong t2tq1irg/8i ditions?

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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 t:)tl-*5rfpb+ slw4ujx0 w s d7nyuf, to operate at 120 volf47nfrwu)yx5-w, l +*t:s0djt ul psb ts?

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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 di9lw 0ed83y8(utgnxxdi gk7fe 6xh 02xssipating 36 wattsty u88lxi (3ednk7g 2whe9f6gx0xd0x 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 bhego;x5. 7ct marked "120 volt, 600 watt.” In normal use, the current in i hbe7;x.cog5tt 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 ; wubr* s0)qdhcould NOT be produced by a circuit containing only three identical 6Ω resistors?0rwdus;*bh )q

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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 followiuqyuf8la0v 5 yok7n28 ng equivalent resiy q5vuf7 nau8l2k0 yo8stances CANNOT 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 valuelc gcj);onk(zj 0a*kck)irj(:: 0 q lfs can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resista;gjjl c : (a)qf0nil0j:k)okckrc z(*nce 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 power+xg9 agos vrpai)ov1ntfwydy0((+b +ih 0v , ( P is dissipy+b0, f9adh+xva1p((w+(0yi)goi tv snvrgo ated 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 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 c wr(yo6*uc( jm;gb +/lwiv6wgonnected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is ; viwygow 6(6+r/bg * uclmjw(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 heljim t7;e )gf/n(;qbas a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it w f/nm e;j;)7lg (tiebqould 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 tgbep7 eb6 :1b;n3 xicrhrough a 4 ohm resistor that is dissipating 36 watts of powb17 ei:c3xe 6bngr b;per?

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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 drac5m y s2d4oij a . *qus1;5tvaeoy.yy,ws 13 amperes of current when connected to 120 volts. If the prijm 1d5 vcu.y4a .o* 5oyqayse i,st;y2ce of electricity 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 tovz3s -npz 8en3 keep a 100W lightbulb lit continuously foe38zn3ns-pv z r 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 t7:7 jo(ap ngayt47 ky4.00 A through a lightbulb results in a power of 24.0 W associated with jt77 yg 7ty(k4: aoanpthe 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 a family of six owns a computer rated a,1 c o;s x3sxv ehvn(lr/lmsf(jut2/)t 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 t/31;llu ren/vf) vt(s,j2smxs(h x oche 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 connecz/(e;i qnt0eo ted to four resistors to form a simple circuit as shown to the t(q0eeo; z n/iright.
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 tnic- 3xx w3vz+o form a simple circuit as shown to tx3xwivc -+nz3 he 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 ideapq k0kpzm :l )y k1wbhu:p:h/l-:cy -fl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.ph0q :puk1p)k :yk/mllyzc :b-w-f : h
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 resistorsz:w6rkyxodz80v -wl 6 are connected as shown. With the switch open as shown in thevzk: ro-l0866 d wzwyx 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 resistors are conn)+uo:482oczt6 myfzc 8) i6)mfv mc lrmikwh- ecmm428otc-)zwcckhfu y)i:omf zmr )6i 68v+ lted as 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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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 eqg soeydh +v)sz+(0w8u uivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, au8 )+h0dgezv+ys wos(nd 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 resistancmv*lw (js9bb ieyn7:6e of the circuit shown to the right with resistabw6*j b ymil(sv 7n9:ences $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resbzrsra 2*h*+i istors connected in a combination*bz + 2r*sarih series and parallel 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 rt qw bpl3u5a+0esistors connected in a combination series and parallel circuit to a voltage source.tq +uwla3pb05
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 diaen dq;w1cs9a +s fo*/qgram, all of the bulbs are identical. Which bulb will be the brightest*/1c+qsfsonqw9 ; d ea?


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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 idear+1khou. odxu.(. vwr k/oe 5sl ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rea/ d.r1o vx+s..o hr5k(weukouds 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 res,)) lah2lfnrims s/7o+whl4h1hn1aq 1p 8peoistors are connected as sho 4,ni18)lfh)onq+a or hw/p7sa ep1mh2sh 1llwn. 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 an u s:eae) x9*( i)o cuazmt069ma(zidbd three resistors are connected as shown. tzuc9(6z )9*ab)mi 0mu :aesed(aoixWith 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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