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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 metalf:hg wf4bv 5q, resistor connected to the battery. Which one of the following choices best describes the dhvw :b45 ffgq,irection 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 rv304j v lq4znhesistors are connected in parallel, the_________each resistvq 3nhl z4j40vor 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 thin filament zcywfx 8 3txd.u.q.y+wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much c fdwu.cq8yyx.3+zx. tooler. 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 hounsy)nbf/ qw4/ sehold lights are being replaced with LEDs. LED is the acronym for which ony4f/wsq / n)nbe 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 resistb4pdetx(jo 5ek6t4)r a ko8o2or 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 resie6 ao 8rjk xp(452detko4bo )tstivity 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 mad6e tim/:7 ,b yoxmi-03qn )w.nhta ycbe of the same material. Wire II has twice the diameter and twice the length of I. If I has r7a)t-3o.i6ym mey ,xn w/cnhb0 qbi: tesistance 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 diameter and ha.7meos;p .vh1e5fmuk-e7cc yvh(5( el/gfx clf the length of wire X. If wire X has a resistance of R then wire Y would have a resivcf1 uex/75e-fpcceg(.vhhsom ( m .k 7;5elystance 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 resist5uuh5+-w 5z;2zm rju1mlfmn cor has length L and radius r. This piece of material is then draw u5r+mzchw; mf52n5mz1-ju lu n 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 brighter light bulb. Hevfa,3e6y7 k nw decides to modify the filament. How should the filament of a lightbulb be modified in ord ,a6 n3kw7vefyer 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 lengt ,m) t1hfypu z9pkh 0f lcz*5i:f7v8gq9wn i3bh and rad8mqcb7ft fip0ip*)9w3: g f kz1yhvu5lzn, 9 hius 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 resistance R, are connected to a bc.h- u 4v3mbkiattery in the 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 connected -3v kchu.bmi4in 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 resikaq k.nvk m)c8v6,9otstance 10.0 kW and the aank)vmovk9,6t k8 .cq mmeter 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 v7) ljgdkw/41 )p5,a xanibz(pisl 7icircuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in the dab 4il7z),jxi 5agdws7lpk1n/(i)v piagram
- 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 electrical08m(.y )l l7v talrulf circuit at the right. If the current in all three resistors is equal, which of the following statem7 fv y0l(r8m.alt lu)lents 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 composed of 50+ueu *0v/rh 3ywsnxu identical light bulbs and 2 flashlight cells. Which bulb (or bulbs) r0*0yvnsuh3u e+/xwu
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 foll)1wd/,l -oxu caeq5ht owing statements is NOT true concerning the simple circuit showdeulc/) xw -ta15 qh,on 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 are connected in series to a battery. Bulb X i7(-mmo 32onjlvut 5drw9*g rhs 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 oonl7dg 2m j w5 murh9o3v*t(r-f 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 c5t)j2nl fnvv:4f e n2boulombs will pass through the identified resistor in 5 seconds once the cirj fv54l :vtnenf22)bn cuit 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 fo.zq*vewb-nujl,::s; 7c q xv2kgrb h.llowing simple circuit have the samqj e.:wcrvxsgqhv:,;n lb.-b*kzu27 e resistance, 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 circuit diagram, the current8*eygm5 pjf6c z;p bgz9r: ju1 through the 6.0 Ω resistor is 1.0 A. What is 5jm 6:8 y;b pg*z1f9uegjpczrthe 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 in series -;dv rq;ly z-as( bz0jto a battery. Suppose R1 carries a curreyq;djz rb ;az-0-vs (lnt 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 parallel to a batzwweb)xm2-;s 4 yk4v+g n, nomtery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current s;m-x wk)+4z wvbg4ny omne2, 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 r5 hwj9 c,7/7qlfu8 avvwic hh*ated 1200 watts and 120 volts. What is the maximum value of the current under th8/ajw hwfv7ci79 c*, qhvlh 5uese 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 o2 ;3ui5oilkryperate at 120 volu5ioi 23ylr;k 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 t:gzafyp:r 1+ fhrough a 4 ohm resistor that is dissipating 36 wattsf:zp1f ayg:+r 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 "120prtu22q .eqe3oxp, 4wlv e0-g volt, 600 watt.” In norxqlpr v2.3wo4 g , 02e-etepuqmal 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 resistances could NOT be produced by a zj*hba2o0 ,62oedqb lcircuit containing only three ident2 h0d*zj2leoqbo6a b,ical 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 thr bnv)r6wgzl6 6ee 1.0 Ω resistors. Which of the following equivalent resistances CAzwrlvb666 n)g NNOT 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 valegt /td: z,pl.ues can be connected together in different configuralpet gd:,z/ .ttions. 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 battery, a total w. oqcw/mqp8udj/ *e; power P is dissipated 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 iscqw 8/pe . /uw;*mdojq 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 .rbz;:o p3kqpz 7(kc6camn95vg);,zzdkye v ted in parallel, the equivalck op.;kkb pdz 69z(cm7):gz an53rqvv,y ze;ent 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 s94o 3,ecvezgp50t) /o kr2nysoltl 4designed such that it has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take te),z9tlrp 3cv5o oln/g ky02e4sots 4o 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 dissipating prsj,. 32ho/ adqwf* x36 watt wj qhp xo,r23s.adf/*s 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 whenzhe(x d ga1v;, connected to 120 volts. If the price of electricidv1 ;hgaez(,xty 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 )oxz (,teqyyv-8 * dqd100W lightbulb lit continuously for 1 ye*yev8 ztq ,q- ydx(o)dar 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 4.00 A through a lfppaew4 o,-f*;4dzc,zj1 ajtb +zi6 lightbulb results in a power of 24.0 W associj+ 1;c-itbedao46 fza,,j f zzplpw*4 ated 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 frqfpnq/: p c*onkm 0,hqd.a8/amily of six owns a computer rated at 500 watts in a 120 V circuit. If kq ron08,d/c n m.qaf*pph:/qall 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 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.t4;noh* c biwxfvra(y2 (.ya circuit as shown tto 4;2i(*nw .vycaaf(yr. xh bo 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 inz2gwy xg7+t, s connected to four resistors to form a simple circuit as shown ,7g+nyz 2gtwxto the 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 ideal ammeter, a switch and th/mp9vqb.fnpqo/t tf tmr e 9e4.x; 2r.ree resistors are connected as shown. With the switch open as shown in the 9rvfe/4;neb .. xpqp/t .2mtofmrt9qdiagram 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 idfrplcm rc ki,l0 6t)ts06 9+bueal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagra60, ttik+0lrm9bpu l) rfc sc6m 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 sm ny6yt6izd(p-+ fuxk8s-sza v5sm// witch and three resistors are connected as shown. With the switch open as shown iz y6/ xis5tzfpnm-yu-a(86kvs / +sd mn 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 ) 3cfo1z z.fr( b6a4 n;scgqdq shown to the right, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistan6.)od z r;3b1q(a ccq4fzfnsgce, 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 rig;ml1xv0tx* b1 vjwy agq2w; fek+ g+b;ht with resit+wk;1x+wgfxm0 1l2 y b;; gjbav ve*qstances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 behnt2c; n/k mq-dyqe( m8rrv02a3; yzxlow shows five identical resistors connected in a combination series and pae/m0vdz-ryq3( 2mx tn 2;n q8hc;a kyrrallel 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 connecte2krpzj-g1,w m7c 4jsid in a combination series and p1j ikmg cr2p,zw-7sj4arallel 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 identical. Which by 39a 8 dxlw,f,:emayaulb will be the brightxe f:m ly39da8ya wa,,est?


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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 amo*o :xjci u9*pmeter, a switch and three resistors are connected as shown. With the swit: jouci*xpo9*ch 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 sba z3l4y8 qme1l3q82zyc es6v witch and three resistors are connected as shown. e1 blsye alvqm3 2yqc838z6z 4With 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 conny 4ex-h+r64yj zgnn3 h hwak.0zbf*;vected as shown. With the switch open as shown in the diagram the ammeter reads vj*h 6ferng bhhxk4 -3 .0n; az4+wyyz2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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