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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 curreuq)gzamgo0q*uek8 5k n(1d z. nt exists 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 direck1* 8g5 aq qoez(.0k ngduz)umtion 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 resisto/ o5ojkh4ml cmo*w x65rs are connected in parallel, the_________each resistor is the samel o c4wo5h/xjk6mom5* .

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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 causespfxvi/n*x k)a2x+crl (: tup- the filament to become white hot, while the larger wvxp xpk-/*()2x uac f tr:n+ilires 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. L49yhcccu3x *6jr ;1x: sxw rduED is the acrox41j ruy69*h c;xd:ucscr w3x 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 l grr.:7rl)bayunhu ++ength 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. Wa.)gbrnyuhu :r +7r+l hat 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 material. Wire ,frf08z/sxim*vv8qlx ib 3p9II has twice the diameter and twice the length of I. If I has iml0/qp xff9vs*i8 x v8rb,3z 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 ha;v76nbosybfvk( x7igm ;xwt6a :scd 4, qq,c*s twice the diameter and half the length of wire X. If wire X has a 74c,:fymsd7cxoqb 6k v;a;6*v (g witbs qxn,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. T:kgk4 m;e6 3;.ngdpcy 29j uu9vz txnihis piece of material is then drawn so that it is a cylinder with new length 2L. Whatdctuengx 4 g yzm; n92k3vui:.pk96j; 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 bulb. He *j/ mz9b5uq q y+1pigfdecides to modify the filament. How should the filament of a lii/bfpj+zuy 1q 5mgq *9ghtbulb 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 material. The length andlzv7 f,a w-i,l ralzi -7,wf,l vadius of 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 resistancerk.jf n(p4t8a 53 oadu R, are connected to a battery in the following way: “Two .un(fk3rp atoa8dj4 5 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 circuit diagram hasktm *xgj 9z*/dh wi1(w internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter readwtd(gzkx hj/19w*i m *ing 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. Th, r ;;wzosnw8jiyq; o;e three bulbs 1, 2, and 3 - represented as resistors in the diagrao,r;n; i ywqsj ;wz8o;m
- 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 rigq:;e)g ukd); o obe 2jvw:nbf-ht. If the current in all three resistors is equal, whic:d en: joq;bu;ge)kf2b ow) -vh 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 simtl hd61nn .gc-ple electric circuit composed of 5 identical light bulbs and 2 flashlighc . lng1d6hn-tt 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 simpl,(lnc wf1e4uxe circuit shown where resistors R1, R2 and R3 are have xwfe(n clu4,1equal 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 connectsnp3b u28;t soed in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each otu ns;s t283opbher 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 th n wedv*otl)i/ 3x+gu8rough the identified resistor in 5 sec+8 tvl3n/xw)*o d uigeonds 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 simple circuit have the m djdko9 b u1.9 kjiu8,;xkrj: fj8m.dsame resistance, which would dissipate the grdmr8bjux.kd, 8fuj9m1jd :; jkiok. 9eatest 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 throu 0v 62xh men/3btheer +drcstn7 k21.ugh the 6.0 Ω resistor is 1.0 A. What is the power supply voltage V?v/ed1 scr.0en6n7+ 2tuktem3hh r xb2


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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 in series to + m e7 kh/rjdz2ebkk,.a battery. Suppose R1 carries a curren jhe7bzk2rem.,+dk /k t of 2.0 A, R2 has 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 parar) x(u ( .nbqzle6a--z/drfvwllel to a battery. Suppose R1 has 2V across it,)(rrx6 d-vbe z(f ua-/ lnqw.z 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 u rbk;x-/vsgt3y- gd3volts. What is the maximum value of tkguxst3d3 r/-g -yv; bhe 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 oa qfy2:h0;; d5iasig u 5zm+zof a 60 watt lightbulb designed to operate at 120 voly5zd: z ;si i5m0 hqg;2u+ofaats?

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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 tigpod66ne u ,0hrough a 4 ohm resistor that is dissipating 36 watts ofpnue ,o g06id6 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 martmx+za 0is5o / hgn0 e+cw1r5kked "120 volt, 600 watt.” In normal use, the current inmgzkcsn+exti15orhw+a 0 0 5/ 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 circuit ;sc;t p7r3 tqfe+yf9wcontaining only three identical 6Ω resisft p qs39t fey7+w;;rctors?

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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 foq/ ig :f(qkb8x;buyh1 llowing equivalent resistances CANNOT be produced using all three resistors h;ib/:uqfxyg1kq(b 8?

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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 differeny1 /j q0s58gdsw+8kcdb s.ap dt values can be connected together in differentdwy/jd .a8s10 b8pdg5k qsc+s configurations. 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 tov i,+3gfh,ka n a battery, a total power P is dissipated in hk ,3fiv,ng+athe 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-/8tx d gpcjjs, -ug*/.lcdug connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statemec/tsu- -d g.upd,c/*8gxgjjl nts 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 resiigm1 3rnsd3 k dr.za06stance of 12Ω when operating at 120 volts. What is the minim3ns grzm.1a60kr d d3ium 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 resi6bquej vm x 3quk.7b(fx3g7 4istor that is dissipating 36 wa 7jb3xfe mux46b.gqi(vk73u qtts 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 connectedxb12 s-h-dbs0q w -j)srs9ahi to 120 volts. If the price of el-0srqsw1dhx-j)-b sa9hs i 2bectricity 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 tozf5gzzg8 b w/r0y a,.ylom5rez) (r+c keep a 100W lightbulb lit continuously for 1 year at a rate of(08 ,zb)wfr y. e/zgz+ 5m5ylaoc gzrr $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 ligf(vr pjg0,bz k.5jj*ehtbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best representj*5(jfbr0zkg.vej, ps 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 owa-e os7loj+1 nckio0u nr0trj-,r9 m *ns a computer rated at 500 watts in a 120 V circuit. If all computers are plugo tc*n 9o0 nj- 0 ek,m1-uoj+srl7riarged into a 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 is connected to four resistors to form a simple cirz+c4f(umk4u0ftdf z2cuit as shown to the righz m4u20ff4d ft zu+k(ct.
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 connezuz+iz (z-6 xected to four resistors to form a simple circuit as shown to the right. x- ezzizz +6(u
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 af .c-h z/ 8rtb)8igtoemmeter, a switch and three resistors are connected as shown. With the switch open as shown in .8hbt/fg -)ri oczte8the 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 zq8 pf6 qr2wakg:co2 g8b)+jjammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the amme8)kbwj2cqza o 8r:+gpfg6q2 j ter 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 r k:mc:3+nnu7 du0ht 7 cfm4irconnected as shown. With the swh+c7k3 4c7:m0drm riuu tn:f nitch 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 a)+ hh-csf08u bj 5gzjthe equivalent resistance? Assume that all wiresjbh +sgh)a-8 0jc5fu z 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 shown to the dy6namlnh))- .ltms7 right with resistanc .l-n6lm)t)ysnda m 7hes $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 cp/wd) l.vyir 3ombinati) .d3riyvw/p lon 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 resistors connected in a combin e;s53e/0 a5crokzjyajv :,b 1txo*-fjnm+ knation series and parallel circuit35jn /-a1 ; f*5rzjk c,eo0nsjx:vb+emoy ka t 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,53u ( 0ow2i wlj fmm*asu.(gzk all of the bulbs are identical. Which bulb willgom uf(m3u i5. jz20w*ska(wl be the 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 threxhmi:0s6q1l m* oe0w foey1l4 e resistors are connected as shown. With the switch open as shown in the diagra*m1 sl 4:o0wlihxe16e 0mofq ym 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 j5te3 cs63ii zare connected as shown. With the switch open3jc sei6z5t 3i 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 battd:b)b6u dt/:v x)u rokery, an ideal ammeter, a switch and three resistors are connected as shown. With the switcobb xrdu6/uk t: )v):dh 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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