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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 m;ohso)1ki+6h9okvjk etal resistor 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 electr)6kovk khhoo+9;i 1sj ic 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 arxu 9 a0su,plw+e connected in parallel, the_________each resistor is t0, 9u wl+xupashe 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 fil+ejt5h1 l+*zo(w t-rp *fuikfament to become white hot, while the larger wires connectwf +j u*to1+tkf*he- 5iz rp(led 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 bjs2 a-alac 1ismug*sbq,dig(ar+a6/+r .kh / eing replaced with LEDs. LED is the acronym for which one of the followinqr gdb /ukh l ja*6-sms+ara1ia2sc i,g+/.( ag 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 re4-pz dev6 wn(xsistor 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 rev4e-dx(zw np6sistivity 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 II has twn (ek/.gqd f)qice the diameter and twice theq .d kf/n)eqg( 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+0pz;5ovhx 7lan l;k/6 tmdtb of the same material but has twice the diameter and half the length of wire X. If wire X 0pbv+zl;l 6o mxa7t /t;n kh5dhas 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. This piece of materiawbegin0j58z l3a t1y6 l is then drawn so that it is a cylinder with new length 2L. What happens to the resistancnet5l3y8i1wa zg6 0bj e 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 decidjp/bqw 5d l-bt z)ztm2)h mxi5h6.oh-es to modify the filament. How should the filament of a lightbu hl 6/ wm)bhi-qmb52op)z-z5hdx .jtt lb 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 matee4s vhs+b,1wd rial. The length and radius of4+de svb s,h1w 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 resist*r 4 wr:b,uwm 5+a1 xj44eelpzkxt4suance R, are connected to a battery in the following way: “Two resistors ars k4 4wwab *mz1rxe:t 4pj5 4+uxu,lere 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 diamu/zw9),ty nmx1u1z qgram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 oh,mq uy 1nx9mzt) wz1u/m. 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 com7d45x- med g5ych6y xgpound circuit shown to the right. The three bulbs 1, 2, and 3 - redhxemx 5y5 g4dy67c- gpresented 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 at the rij d oskv240(utght. If the current in all three resistors is equal, which of the0ks t4(jv2dou 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 simple electri5cche;zc+ qv2 2sj4fb hli9d ;c circuit composed of 5 identical light b jc h9;b2i52cv;eh+s qfdclz4ulbs and 2 flashlight 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 si vxd5 0(jhji7pmple circuit shown where resistors R1, R2 and R3 are have equal res i d5hp(vj0jx7istances?


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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 batterujcl 5in3e)opa zh f1jp). l5-y. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are ic1p5 el o)a z3lf5hjunp-).j 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 pasqmvdwj;r 4c5(v)gt4rk p4m4d s through the identified resistor in 5 seconds onc 5v4q4t d rm)jm44k(vd;rw gcpe 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 thxmt-qjb(0z d6z3ma a zok.i4 rw*yf6( e same resistance, whi k4rzj bwti yafom z06 a-m(6(3z*.dqxch 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 diagra67yg3a rm.y 99 wkw7l so+ tkylacf0z*m, the current through the 6.0 Ω resistor is 1.0 A. What is the power supply voltage 7ato3 lca+ w9z9yyk m.7sw*kg0rf6yl 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 sem3whl x/*4jtm05yk qiries to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, itlwm3yhmq50 j*4xk /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 ctpcx 0i3qgoj5/k16j uonnected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω g30u/k 5tjpco1i6xqj , 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 maxi8ozcdv bc qb aw/p8a a6;r+-(kmum value of the current under these cob vpq; kwdz(r /8ba+coa68-acnditions?

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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 operao v,fo3gji 36i) :bhjny05jxs te at 120 volts?bnjyio5, ) 0gj xi63:j3sv ofh

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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 resistor that is dissg+gy4:u6v y azg7x,ag sk8rj4ipating 36 watts ofkaag+ u47g48yzvg r g,xjy:6 s 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 1o du7,a,o3.8 pr7gvxhs qfex watt.” In normal use, the current in f.hd, ,qvs 17aog8o xxe3ur p7it 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 produce2eh1vgn5lyev-/m s) k1s 32 edw/p eged by a circuit containin/s)yve 1/ emld2vghwpe 1en-eg23sk5g only three 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 givenco mh0.0hk j5nt,-fgg three 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using am0g,jkchf.t 0 ng5o h-ll 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 didx xoq 15 g6f4x+ffd g*j*-qdh8*fc sbfferent values can be connected together in different configuratfhxdd+g1-x o*8 qcd56 bgffxf*q*s4jions. 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 connected4 ( m folermsk4)v040qi smiuqp t5w82 to a battery, a total 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 t5 0f2lq wpiumi4m0 qr4kvtes8 m4)os(he 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 resistancz3vc5.b uifg.o:yve *e R1 and R2, are connected in parallel, the equivalent resistance of tvucgo3 .bi.ev:y f5*zhe 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 dj8g37wf1xx44 0v ceuvz :wnz when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from z cwxd1v w3nz:0ve 874ju xgf4$15^{\circ}C$ 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 ip4 r6y2kmx 6ltnb/z/zs dissipating 36 watts of2 l64/ rz/xbz nkptm6y 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 dr6p mgeyw o7x,(aws 13 amperes of current when connected to 120 volts. If the wp,(7yxme 6goprice 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 itnh ; i9qgs ):7(:ikxqqptr:tn cost to keep a 100W lightbulb lit continuously for: : itniqktp;9sq h:7n(gr qx) 1 year 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 lightbulb results in a power of 29fmp( uqqf otq* )6x,b4.0 W associated with the bulb. Which one of the following choices best represents the resistance of the light,bt6q*m(xqq u9fp f)obulb?

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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 watts in a t4 - 0yt -0yocsc9i9 qccdjr+z120 V circuit. If all computers are plugged into a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can be opera9 tcq sj4c yozdci0cr+09yt--ting 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 batte gl .zsx gy/-/18fg wuml5:udtry is connected to four resistors to form a simple circuit as shown fluz8 gt5.1umlxd-g g:s// wy 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 cirk)lsh,t+d0f/ pn(4c1f y jak qcuit as shown to t0kka( y,f/+4 lf q )dctn1spjhhe 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 ae7 m*kv*n ke7k.abp +47kxyf and three resistors are connected as showymv*k+4nkep axa7f 7b*ek7.k n. 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,pvv m f ereyr6v3(djb;; b026i an ideal ammeter, a switch and three resistors are connere3mvp vb;2(6eyr f6 b0jiv;dcted 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 ammec6hq9kcb7n-dvhc7 /o * (oleiter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the a 7lh k *iconc7eb-hdocvq9(6/mmeter 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 resistae1dr6j1g( d fmnce? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistancjdg(mef r611d e 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 right withk)oygv *vv ,l4 resist4 vkgo y,v)l*vances $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identicv-wtdq/uj 4c sqn1 6tf*zx) 6nal resistors connected in a combination series and parallel circuit to a voltage so*4njq/vnd tq-1s t6)xuwz 6c furce.
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 sh/,;e.dt huik)zubcjd; b,:se ows five identical resistors connected in a combination series and p.c) hdk/z ibs ;,t:ujdeue b,;arallel 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-ozj t3u cty( , ufzg9c+e,un 5nsjh:4 bulb will be the brighz:,+ uunzu4e,tnsyct-c h go f95 3(jjtest?


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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 ayqso1j+bnaw.73jlg hk 0)+ s y7r:phb nd three resistors are connected as shown. With the switch 1a+)7:j lqn 3yhbg7jh rswpb o+ys0k.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, d6.wgs 907xmk xb0dl man ideal ammeter, a switch and three resistors are connected as shown. With the swit .bgmkxs0dd06wlm7x 9ch 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 thrrixmzg0f5a4 h1n*d l sx )p4:xee resistors are connected as shown. With )fdm 4rx *0g:5alz1xps i4n hxthe switch 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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