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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 resistor /cbn-)pg1xlb connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the d/gpl1bcnx)b - irection 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 c*f 72i+ *gpg6q n2su7z rclvfin parallel, the_________each resistor in6*r zu+gvclfc77qisg 2fp 2 *s 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 wire of a lightbulb causes the fiwk3 7l8svqm i i9q*y5mlament to become white hot, while the larger wires connected 7m3yk58i9*qvmqsw lito 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. LED is geg*qodw5m fwd(jx 9u6 3yq9 4the acronym for whichjyd3ugm(d 46x fw o5q99w*qeg 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 rul7*jzhvx n s 4p1h/3has 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 / pv1hzxr4 h *73nsujlnew 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 maten8wunn7c 2,iste3efjt(4)s ;tjn:mmrial. Wire II has twice the diameter and twice the length of I. If I has resistance R, II hcmt 7 ;j2 estt43i(:,jn)n8f wmn nuesas 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 hashi+0owe*rk:5y2w 9bvjk 3ugd.xek1 b twice the diameter and half the length of wire X. If wire X has a resisv 0wwox5.b2d 3ur+ hi9yjgee:kb*k1k tance 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 rj411e x5 f1uoq b657eivrk ibmesistor has length L and radius r. This piece of material is then drawn so that bv 6 15i7 q5jo mr1exi4u1kfbeit 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 0z0b6odf)iu0 s/ klh*hdkqv / make a brighter light bulb. He decides to modify the filament. How shoulddv b)hiu/l60*z k k0 fh0so/qd the filament of a lightbulb 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 cylindricae il cj0/hm5j)2 4bonyl resistors are made of the same material. The length and radius ofmoyjj /c enh40b 25il) 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 i)mnewug f 8brw)1hm; 2i;fc p:n 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 in series to a fourth resistor.” What is the equivalent resistance of this arrangement ohbwrm;mp1u 8)gwenf 2f;: )icf 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 cir4+/br*pb9a; i:pnat,cm ulec;,bxcm cuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mAbixr c/p;pcbu9mtmabe:n;+*4, c ,la. 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 circmcoh wemoy92 iu0 p276uit shown to the right. The three bulbs 1, 2, and 3 - representeomycuho260 wi2p 7e9md 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 jn9*6h*awh ,9.ww-xtzh ho8xgc 1xhlat the right. If the current in all three resistors is equalhh6 h*8j*t.xow91g aw ,lx9z-whncxh, which 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 ar;4np7oq)(sx ws+yrelgz h1m pu//+ kt right represents a simple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. Which bulb (or bulrqmw o xsp/sglr;+1u+ h)n(ey4 z7 pk/bs)
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 simple2ox 7g+8qg,8epxeorh circuit shown where resistors R1, R2 and R3 are have equp 7og,28rge8hqe xx+oal 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 tof*5mm: lt4chw 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 other to the same battery, which one of the following choices best represents what is obsel:w5*m4mt f hcrved?


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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 kl+:b2 f9b3wdtzf:og e0 4 4z,fcvwrcpass through the identified resistor in 5 seconds4zbkcr2:4o+ ,w0cezlgw :f3vff9 b td 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 thlii8ent7t : ;ee same ree7et;8l:nt iisistance, 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 current through the 6.0 Ω re6qm .fpb i5r1rsistor is 1.0 A. What is the power supply voltag1qrb. fr65mp ie 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 to a battery. vuj g; ,wfp0p.Suppose R1 caj w pfv0g,;.purries 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 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 Rmn01 sdb-uolc+ s:h8f1, R2 andR3 are connected in parallel to a battery. Suppose uo-ns d0m+ f8s:b1clhR1 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 watr6/q e)stu n:ots and 120 volts. What is the maximum value of the current uque) 6/:to rsnnder 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 lfw/j0rk5.k0r iap ta 3ightbulb designed to operate at 120 va50p.t kf03 jkwa/rirolts?

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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 skg0ej ue76s.x+q wa6ohm resistor that is dissipating 36 watts of+jxse7w66 qu0a. s gke 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 "120 volt, 600 watt.blfo kh.z4p 0.” In normal use, the currezl. 4bk0f.op hnt 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 resistantn)gysg*a4x2dt8; t a ces could NOT be produced by a circuit containing only three identical 6Ω resgg)ats4yd8;x 2nt*taistors?

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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 followingem7g- xql09fpkcz- s+ equivalent resistances CANNOT be produced using all three resiql-k g-czmf s0e7 9xp+stors?

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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 in difpvd).hxo8-mrrp - e3pferent configurations. If all three resistors are used in a circuith-.d3r-me rp xvo8)pp , 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 totk38bwxdqi60ph (qcoo 77zk4)irl24n(bk dy sal power P is dissipated in the xb7scopzkwiqb kn3q(ol47 h0) d d8y24ir6k( 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 connected in kp)q pg) c2gp2parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistanc)gcq) 2kp2 pgpes 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 y 6 r *kb/mj+fad,cykaux7 ipzzn8)-;has a resistance of 12Ω when operating at 120 volts. What incj+8rauk6yi)pf*abyz7 ,x-;z m/ kd s 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 that is dic-d8 6*3mm x cf80k(oclh saqxssipating 36 wah8o-as x c03fdl(6c8q* m xkmctts 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 connecn.3 :h7fx0gp4sr cc9v rfe6yhted to 120 volts. h906.gvnfesp 3hx4 :7cc f rryIf the price 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 to keetw9z 44-bitn mp a 100W lightbulb lit continuously for 1 year at a ratent-t4zwmib9 4 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 lightbulb results in a powerhybj 3q0+v4a rxxr65q of 24.0 W associated with the bulb. Which one of the following choices best represents the resistance of the lighxy6 vqrbj 0a+xh345qrtbulb?

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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 olu :c wsjj /6v7qd+2kkwns a 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 iuck+6sk j v:d 7lw2qj/s 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 resy;g. 1jy4 lpatr 3r3elistors to form a simple circuit as showlr1 tp r.yel3j4ya g;3n 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 conn cf5w5y;xcfdgav, r.:ected to four resistors to form a simple circuit as ydf; .gv 5crwa,x5:cfshown to 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 thr wvl6 :ja07xjbc4y8 d7iibm v/ee resistors are connected as shim78xlb ji4dva v 760b/ywjc :own. With the switch 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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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,621mr5 scia;kep or *u0q7nto hk;vd three resistors are connected 0sd;erk*uahkq it v 56 n21crmop7o,;as shown. 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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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 x-2gil3c. lkfare connected as shown. With the switch open as shown .f ki-l cgx23lin 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 enza(8+y lr*wlhsh c a(n-+q0pquivalent resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resisplh(awqh ac(n+zys0+ r- l*n8 tors 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 sfj hqus0l5)grov4w m2y q;n cmd72w)-hown to the right with resistancej r )25n 2cms7f 4m dqywq;u0vlghwo)-s $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 iden3c72qm tq17pj- rnyyk tical resistors connected in a combination sey7pn mtj-q3 71kcr2qy ries 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 combiucm,oxxs ,32na ; e:vcnation series an:ecx2 u,; n,c3so avmxd 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 oo/3rwgo s2 zd;f the bulbs are identical. Which bulb 23 /do;rgwzo swill 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 ammewr9z8 e83gx8dpiv ;xster, a switch and three resistors are connected as shown. With the switch open as shown in the diagraxrw389i ;ez8gxsvpd8m 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 7jqa j 5pwuk)rix-3jg2 z06psideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter rj0uzkj2pi6p sw75 qx3raj)g- eads 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 a8bbi9c 4b o1pere connected as shown. With the switch open as shown in the diagram th14 98obb ecpbie ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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