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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 :xz;r; cmx,14pr .tfzqm7 rcolxpb rep7k 83.connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction of the electric field thpcxm. rb,ce1flt:.;qor r47p mzrxk z3p7x ;8 rough 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, the_*m4hijgn,/ frgfy 6;tcpd* w3________each resistor is , 6f jg43mi*hrgy;p /f*ndtcwthe 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 light-q 95a-tz*/s ic tyxjr 0v(n(1qw evyabulb causes the filament to-tec(n/v y9jsawz r yiq5 0-xtaq(v1* become white hot, while the larger wires 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 householza9(2 7lrt yzad lights are being replaced with LEDs. LED is the acronym for which one of2t rzzay7 l9a( 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-sectional * ;rpk,oz.bis*w nz7vn q 39pfarea 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;39.qr nzivsznk w7p* p,bf *o 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 mhh4 sxenk4) e;4t7dhmade of the same material. Wire II has twice the diameter and twice the length of I. If I hh 447 dk emensht4x);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 0;2uh dj7rt2 j q4j:) 7brmir aceoec3twice the diameter and half the length of wire X. If wire X has2rr77q0)ibdjj r 3;htoju cec 4em2 a: 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 rl*j gkfas 6h92esistor has length L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. 2 af6lk9sghj* 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 ayhs(h1 6 k)vvr brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce mor rvsy(6 )hhvk1e 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 cylindrid 5dfh4fo9r 7scal resistors are made of the same material. The length and radius of each redsd7 54fohr9fsistor 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 connect4g8g y 3idgy20ctge5qed to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a thirdgicdgeytg3q4y 802g5 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 accompanyxvk9 t a::j:hting circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Tj:t9 tk::hav xhe 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 compountg5sw 5u5 ji,gd circuit shown to the right. The three bulbs 1, 2, and 3 - represented as resistors in5ugs5ji, 5 tgw 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 currentk50 o1m.f1p 1zrm0si;t bdtol in all three resistors is equal, which of the following statements0t1m 1m5 dzori.t0;p1k lb ofs 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 oix +muq 5 cz6ozrk9 w.bad:+(pf 5 identical light bulbs and 2 flas:x(z ubcdpz6wo+im qa +r .59khlight 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 statemenh5 brih pn9tx7n:d:o 9ts is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are :xnth p9:rod ih75 b9nhave 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 lightbulbsv 5z.w35 f wr39 qrrphz0(gvgt X andY are connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are rwz5pf3h0 gr gv wq .3t(9r5vzideal. 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 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 through the id;0e*lvcs u n11a xc +j5a o.uc8qx cvs4.exaz0entified resistor in 5 4aqc a1vj8..l00;x*cv a+ ezs enc5x us uxco1 seconds 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 fq .cuoo9 oma(-ollowing simple circuit have the same resistance, which would dissipate the greatest poao - mu.9qoc(ower?


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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 cu niu:i7 mx6 0/5xshb mcvg3r9zrrent through the 6.0 Ω resistor is 1.0 A. What is th gv3z cxhb5xns6 i/rm7i m:0u9e 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 resistorsy8j *hzb8b4(dn zlf 6w R1, R2, and R3 are 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 Wbjbdwhnl4z8z 6 *8 (fy 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 Rcel- att 5oiqm *)t5cqf n:88m1, R2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across moqmtt-:fnc i 58l 5t aecq8)*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 1;:51d966scuvc iekouv y1 8rlz mw*lo 200 watts and 120 volts. What is the maximum value of the current under 6;9s:*1cur6yvloc81 e5 ildwk mvzou 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 gpbce*qw ct*pp,vlp)+/1 3og operate at 120 volbpto* ) w1*3gelcpqp,+ g/pcvts?

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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 resistori 1j72t vkuuppv+(v690hev tf that is dissipating 36 watts of7ti0 fpv6v t ve(u +jpuh9v12k 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 0vkutt,1 ygzr/(r9zlgc q1 z) marked "120 volt, 600 watt.” In normal use, the current in it t lqrctkvg,zz1/0y(z1g9ur )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 bec,k()tf:qq . qqnku q50e fov/ produced by a circuit containing only three identical 6Ω resistvfq)q fkqtn(:q /5ce0, .k qouors?

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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 followin 8s zo37cftoc(g equivalent resistances CANNO7c8o 3zftos c(T 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 values caa;yj f wp:elc8m/* 29gzli* qkn be connected together in different configurations. If all three resistorjf;ze:q 9 */p*ilky82wcalg m s 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 p71s qrolk- tar(;6urxower P is dissipated in the circuit. How much total power is dissipated in a circuit if n l;s o61r(k7 xrat r-quidentical 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 conn)wn7 p (dp9mjdected in parallel, the equivalent resistanpj)w7 nd9dmp(ce 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 when operatls 1o):,-n c)wumr ayc:vnz9iing at 120 volts. What is the minimum amoa:1myn) c vsu-)n ,wo9l:rcz iunt 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 xht)u s(5p kt)ohm resistor that is dissipating 36 wattstk xp))u(s5 th 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 connected hh2 p. 9jqjgue 0*ystn01 00 34cdnh dkvgam5lto 120 volts. If the dchu1n d4t3vqha ne*0l 0g0hg sj.0 p jmk925yprice 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 woulymv0gr bw xdh5+h; *x4d it cost to keep a 100W lightbulb lit continuously for 1 year at a rb+r0wmx*vgy 4x; hhd5ate 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 throug9 zht5ypq)4udh a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best represents the r4)pth95zd uyqesistance 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 computer rated at 500 wat ay1i2nxt.js+ma q x 3ybo61y2ts in a 120 V circuit. If all computers are plugged into a single circuit protected by a+.a1qt nyy1 m63xix2bs2 ojay 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 cojf/ ascxyn(c7uv95 m0 nnected to four resistors to form a simple circuit xa sj9n u/70v( mcyf5cas shown 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 simple ci akz4u8-oor8p+p a5pio nyi 79rcuit as shown to the a9n+oou85p 8zri4y -ki p pa7oright.
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) sqpxy; s2b:pnx9j ,p ideal ammeter, a switch and three resistors are connected as shown. With the switch open sbx2; q: )np9 xjpsy,pas 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 ideavqgf 0ff a -8gmm7r2q p*ce(+ 6 (v)6nmelqyeul ammeter, a switch and three resistors are connected as shown. With the (fcv*f q y gunmf)6mql(0q7eg+-p re2m 8vae6switch 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 arv: l x sokh;cg5rl;8z f477drhs 6ibt)e connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.h i;r8:77xo 4gbt 6s dfkczrll)h5;vs
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 circuijv h dz sr:1wgc((8wx1t shown to the right, what is the equivalent resistance? Assume thagsv:8 jrc(11d (zwxw ht all 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 m7ly0vni*/u hshown to the right with resistances m/7u*inv h0ly $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 b ruelec(*,*f)m)bp xjelow shows five identical resistors connected in a combination series and parallel circuit to a voltage sour)(ep*jf, e *b cxrlum)ce.
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 ;kosc2ih;fq 8in a combinati ;8ho;c2iskfq on 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 aretk,l1+4 yuwn s identical. Which bulb will y4,+swlt uk n1be 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 a4rm1et*7p0o q or-2t/gp coxcmmeter, a switch and three resistors are connected as shown. Wig rt7qe mcpor01to*pxc2/o -4th 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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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 a17-ceus8se1u ipj(zire connected as shown. With the sj8izcpue-1eu17 (siswitch 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 th;( tzael)p f-uree resistors are connected as shown. With the switch open as shown in the diagram the amm )eulap (;tz-feter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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    总分:50分 及格:30分 时间:不限时
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