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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 me;s i :pas4zbqv 4b1qwo:x4s x2tal resistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the 4wsqiv4xqpo ;b:xas4s12b z :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 wr *br0uk . kldu7+)y-;jgvxdparallel, the_________each resistor is the+ukryw dd 0vrk-lj u x;b.g*7) 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 of a lightbue8o* uf. z/t c3;sthvmlb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This happenstu38z.vc *etsm/ ;hfo 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 arhba. lgt *o9m/qrw3v+ vf7p .bsh,0q;- mkoc ae being replaced with LEDs. LED is the acrolmqaf h/t. -s k.qco,m*v wr bao;b 9g3vp7h0+nym for 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 cros ktc+gtu;m ,*7 qw7xhhs-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the n t;,7tw m+quch*h xg7kew length is 1/2 L. 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 o:/fw yl/7g. bfi cwpg7f the same material. Wire II has twice the diameter and twi.w c 7/7fyg:flpib/ wgce the 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 but has twice the diams,7bp cepdj,e+u t-y vppa/ ((eter and half the length of asje+t,-(dpbpyp, c7/ p ue(vwire 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.sp k.w wb5l fb7c40 (e0ab+uwh This piece of material is then drawn so that it is a cylinder with new length 2L. What ek5.cb(4wwuw p0bbh + ls7fa0 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 brigy:s:d2 + (dantl+wdzx hter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to maktdd (na:zyd2 + :wxl+se 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 cylindrg 2jlxnavd; gyw: 9 )r0a)k3iaical resistors are made of the same material. The length and radius of each resistor isxyi:a)v 2g;9jn0gaa)3 k rlwd :
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 fv1)(b 3qq3mw vqkmh,mo3iu(7o0jnv resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resjw1n(7vm 0mq3bvhvkoom( ,3) qu3ifq istor. 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.pm 9lt s(a2 c(y7eihie 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.0t2yaii lme s9((h7pc .0 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 he* j -hw jt/oj6k*y,acircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the a-koj jjthe **,/6wyh 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 currentiz..wx*oldqg ka7/,v3sb 1wt in all three resistors is equal, which of the following statements must be truegkst.q 3/bz* od7xv iaw. ,wl1?


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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 repre,0;x1y+ / rtyxr2j1dpoe tod fsents a simple electric circuit composed of 5 identical light bulbs and 2 flashl1jd/to+yrxp1y dtorx 02, ef;ight 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 taxb8 xu x9 - t:8s;m*vp qmlxi5rq 0)m0lf9wnstatements is NOT true concerning the simple circuit showuxvxp*8 lm9 t: 5;ta0fb mw-s9xlqn0irm8)qxn where resistors 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 a63(wl0b fxd7g2a vx5te2ukv are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connec3fek(al05dx2 g2v6xvtuba7w ted 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 w6uqo:oml ll /tg gun.)-4ff)cill pass through the identified resistor in 5 seconds once f/nm4) lft.o)uoc: glu6l gq-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 m.mk guj2fzdg* . )u*w simple circuit have the same resistance, which would dissipate the greatest pdf..u *zjg *2 mmk)guwower?


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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 qqy;- udu.mh1circuit diagram, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply volt u;mud1q.q-yhage 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 areak +zat.e-my6 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 of power. What is the voltage acram6 z+-ey .tkaoss 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 parallel to a by1, 4chm)ji8*)pkg uzbpqb/s2 kffyv 9t r 2q+attery. Sup* yh2pt8fq+/2,qg z f)csvu bm4ri)y p9j1bkk pose R1 has 2V across it, R2 = 4Ω, and R3 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 1200 watts and 120 volts. What is the maxi50ices mbmr;f* +j/ gumum value of the cuesiuc+/mfmrg ;j* 5b0 rrent 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 lpdw 537imk;f operate at 120 vopk;7ldi wm 5f3lts?

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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 resf2k .umigef+; istor that is dissipating 36 watts of powu;2k.fge + fimer?

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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 pre rwc6 cic;;lnfih;6xl5u1s( dss clothes is marked "120 volt, 600 watt.” In normal use, the curr5 xlcii ruch;n1lf66ws;c ( ;dent 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 r(1 ;gbezymyei4/c m 9wesistances could NOT be produced by a circuit containing only th/gm4e9cwz( ;my yi be1ree 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 resistorsfsamqn0;*1czy ( dk2i . Which of the following equivalent resistances CANNOT be prfk;a0*q d1z( myicsn 2oduced 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 i3*heri 4v- xgoj+jrt 5n different configurations. If alexoj+rv34g 5irt j-*hl 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 battefteo sb/w. 0d/a(70z/tztzue ry, a total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical e 0bs.( etwdot/au7 zt f//zz0resistors 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, hnnf 3jw-1yjcy :71miraving resistance R1 and R2, are connected in parallel, the equ- rc3fmnwj1 yy1n7i:jivalent resistance 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 has a resistance of 12Ω wh*,cy,-mc )y; wvwipwxf/s jx-en operating aix,w/ sy m)-*xpjw;wc,-f vcyt 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 resistor tihxark0h02gs 4 c .m-3dv5fek hat is dissipating 36 watts of powehrdvcmg e4 h-if2kxs0ak. 305r?

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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 vol, (ihiz(w1j+appfwmg(b wx,uqb .*n;ts. If the price of electjbami pph(.f ;, ,1ugq wb+xw( izn*(wricity 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 lightbuluvu6gis5wh 6/1rby iibm02n0 b lit continuously for 1 year at a rate o us2 i15uvmw0iy0hb6in6/g brf $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 h et13-we pabde908os in a power of 24.0 Wsb 9ehdw-e03to8p 1ea associated 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 a family of six owns a 8 6he ioh:i(yicomputer rated at 500 watts in a 120 V circuit. If all computers are plugged into 6iy: 8iio (hhea single circuit protected by a 20 ampere fuse, what is the maximum number of the 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 p kf)d3+ ;1 dfwitck k 1g:nhnv0s)ps.is connected to four resistors to form a simple circuit as shown k;)tcs3w1ipnfv h.g0nfd1 )d:k+ kps to the right.
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 sie5 o/o onwe7c3mple circuit as shown to the right.neeo c/7w3 oo5
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 s96pw(chcr: rlsi)2ic witch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0p (9wc6s)ri:cr ch2il 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 resistors areu:zy.bo,c*id z 8/yr k5edv- k connected as shown. With the switch open as shown in they-vdryok* uzb :k e5/i.c8d z, 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 anj-w6(jtv ae7s d three resistors are connected as shown. With the switj7taw(e6 v- jsch 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 equivalent resistancek: .jvfxu g9;i? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance ifju v.k:g9x; 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 nzj0k ;nci vwk) 9ekf+(,kwa;resistance of the circuit shown to the right with resistancesw,)+n90jcwai kkn(; v zk;fek $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cqz) z5me 2b3 3fde9hpgonnected in a combination series and parallel circuit to a voltage soup3 2f)5g eqzmhe z3db9rce.
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 idext0sbs (5t,ra ntical resistors connected in a combinatio0ssrtx tb,( a5n series and parallel circuit to a 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 bulbs are iden)a6g h6w07 k2opu yfyotical. Which bulb will be tu2 y0676hg yf o)okawphe brightest?


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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 resi;dc ly9:hv7c vstors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperhld;v c9y:v7 ces.
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 switccs kvq/: ;/(ozogal+a h and three resistors are connected as shown. +/ao(zgoqa / lsv;c:k 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 resistors are cony;ow8/jknrl0gip iel76wu-wn3, gv4nected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampervjog-,n3 ili8g/l0k;p7ue w w4nw6y res.
When the switch is closed, what would be the current in the circuit?


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