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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 juq,7q70zqzpda n56ye5kl2w n -gah6 electric current exists in the metal resistor connected to the battery. Which one of the following choices best describes the diu,en5q 7 7q6a p ajnhzyq205gw kzl6d-rection 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 resistors are connected in parallel, thr:e:m sc+lz w :cc61-xho(lq t k6;icde_________each resistor is the sahc+se-:kq6(cwd6 cx o 1;l lmcrzi ::tme.

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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 fiis/;zddmwu*ol n9 g8 1- vdg.llament wire of a lightbulb causes the filament to become white hot, while the larger d.1o-l dd/*uwl8smg9g; zin vwires 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 LEDs.0cx;wgchh /6 bnovz: 9 LED is the acronym foo:0cb;nc9v xh6wgz/ hr which 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 resistor has length L and cross-sectio f,dkp;f,e:a5 t/ bs 7mgeizj.nal 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 resistivitda75 /;,k m eff,git.:jbzespy 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 mad:5 x qy m;cerh;n+(y. 4qpvuyze of the same material. Wire II has twice the diameter and twice the .e zpv+nm;yr4qycxhqy5u :(; length 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 of the same material bu7mthr su fs;m:-;ev* tt has twice the diameter and half the length of wire X. If wire X has a resistance of R then wire Y would havu ;e*trfv- sh: m;mt7se 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 9l9te+kve fi 54t+1eoal v;veand radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What happens f5e ake tieevtv14 l9 o+;l9+vto 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 Edi2,vv1lyr qmpybh0r( 4son wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbumpvhy0r,yl q4 1b2v (rlb 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 resistors are made of the same mater3:cup6zmliikhd g. 9ld+g17 w ial. The length and radius ofdl l+iuk71ghi6w3 g.md9: cpz 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 R, are connected to a battery in thg,s h 5mq;bn/ze 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 co,gqbm/zs5hn ;nnected 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 inwsu( l:il2u.,z 2xfpq ternal resistance 10.0 kW and the ammetez(iswq,pl2:uf x. lu2r has internal 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)kgwp;f inr8ba 4tbkt4w.-gt 8u a.,y to the right. The three bulbs 1, 2, and 3.nwb8awbakp.;tu yi kg 4gf,t-)r t48 - 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 circuit at the right. If the c y;xwxsd)5k6 iurrent in all three resistors is equal, which of the follo56x w i;kyxd)swing 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 siml r +:i+ mwsk0 ls4x(n n)/3gcqm+ptqeple electric circuit composed of 5 identical light bulbs l +m:4qq0n/)xn sr +(m+ti 3wegspkcland 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 NOT true concerning the simp-b5 6mso qogc1le circuit shown where resistors R1, R2 and R3g 6-5q 1mcobos 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 batterde eiv3lac)8 )y. 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 choices best represents what is o lc evda)i8)3ebserved?


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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 8j s ix m0sv49 td yi:su*9apz/tlz45k the identified resistor in 5 seconds once the circuit was skap z4/xlus tzd0sv 549ji8*9: mtiyclosed?


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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 7: n.pggnf jj3 ln*lv,following simple circuit have the same resistance, which would dissipate the grefjl l7p*ngvg:., njn3atest 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 thrgi sbo v2vcek7ny: )5*ough the 6.0 Ω resistor is 1.0 A. Whe27cb5k*svv yo):g inat 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 (v v.*1rznmwoon /7ib in series to a battery. Suppose R1 carries a current of 2.0 A, R2 h 1*wnmn(zivv. orb 7/oas 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 par8g)vhuc vnu51w/ m1pnallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the cu m/vu5n1nc) v1wgp8uhrrent 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 120srfmj1z *:: s 0yxwkt;0 watts and 120 volts. What is the maximum vals;tm1y:0sw *j:z r fkxue 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 of a 60 watt lightbulb designed to operalo e)rgo667 (gc8x h5o)h bn1qdg w;pjte at 120 volts?g 5db)ch j1w7oxgq6;op r e8)gln6( oh

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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 is1171rwelq9; r1bucff7s cclo dissipating 36 watts of pofr b;clqcew r9u117sfco1 l1 7wer?

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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 marpvdm yz6d s6:,x0y5b kked "120 volt, 600 watt.” In normabs my ,6z5pkv0x y6d:dl 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 res/n6qp 3xfr4bv ;awq pv ;p:;hoistances could NOT be produced by a circuit conta;p 3;64qa :nwh fq/rpobvv;px ining only three 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 following equivale3l;./7zn /yrxotblk fnt resistances CANNOT be pro3rlo7b/yztn/x;f .kl duced 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 vajxa lf6ha7- o b,a +qks9;abf(lues can be connected together in different confijaqb;7a ,bf(osfa+ ka- hlx96 gurations. If all three resistors are used 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 battewkn:w ynhi)st0f49ypm 8dbua 8 +8i1vry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in serienit08i 4u8ydsvb+yp8wf ) 9h k nw1:ams 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 actvz.8i4 gj ;fnd R2, are connected in parallel, the equivalent resistance of the combination is 5Ωtz4 cvg;8 .fij . 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 dev3pczy ks5 6*usigned such that it has a resistance of 12Ω when operating at 120 volts. What is the s uc6p53k vyz*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 currengegi(bd)omqfq q .;2*z 3a wem+wc, o9t flows through a 4 ohm resistor that is dissipating 36 watts of(d;efm m qwqbe2 g3.a o+c9)zwq*o gi, 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 e j ycm: j:8jm7ae(/erdraws 13 amperes of current when connected to 120 volts. If the price of elecjjee y7 :e(rac/8:mj mtricity 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 .xi0/oyan 7p(p1y8 ;dbqnkqw a 100W lightbulb lit continuously for 1 year at a rate oaip o/( b1qy7.ypk;d0x wn qn8f $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 in abz7lwo,q +j; b power of 24.0 W associated wi, bjoqz+;b lw7th 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 a family of six owns aiuc:5g8a)cr(y mt:ay/c oj7 x 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 sameti u /yc() car:ci8t:75mojg yaxme?

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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 form a simp 4xl/n)mgiqt) qaof(,ea2c9mle circuit as shown to the ra2x g9coqnetmq4 if,a/(l)) might.
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 i4w i-2gc(q9f1i da ekts connected to four resistors to form a simple circuit as shown to the right. ctifd-qewi 1a49k g(2
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 switch and thl4ir41rouix .s;m( ny1nt c y2ree resistors are connected as shown. With the switch open as soy x;r s4ic 4t(1.yiu1rnn2m lhown 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 :f/qtg fsi(9et/. xcuswitch and three resistors are connected as shown. With the sfc./ qigtet /s(: 9fuxwitch 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 y0 c54.srar bxammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampa.r0cybxs54 r eres.
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 resist)sw63t kxo id;z1 esm3ance? Assume that alld3 xs; 613toe)s kizmw wires are ideal, the battery has no internal resistance, 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 9kreq 3 jgqsk- l 4r:b67-mngvshown to the right with resist-vg q9 glsn74j-kr 3:b6m qkerances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 combinatin, *8lfoo8 -jfkrdz j(on series and parallel circuit to a voltageo f,rln jkz(8d*f-jo 8 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 idr4,2kfm :o)za 4 v x5(4updvjoc vmgw(entical resistors connected in a combination series and parallel circuit to a voltage souu4 v5pamovcg j:4owf)d kz(( ,4rmx2vrce.
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 are4j maefnq3bz,;.n7m)g t4cu j identical. Which bulb will be the briuj;.,caz34mnme fnt jqg 4)b 7ghtest?


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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 eqdd2+*ok fu 2and three resistors are connected as shown. With the sw ouq 2k*fd+de2itch 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 ideal ammeter, a switch and h9kpzxr 6b(iaz4 6 8fhthree resistors are connected as shown. With the switch open as shown in the diagram the rhbikahpz 8z49(xf66 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 ammetri.n( :rjxnhu6pa 3d9 er, a switch and three resistors are connected as shown. With the switch open as shown ij:9a(6rrhnu.n px3din 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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