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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 gm 44eml5 ttt/*mncv4 shown, an electric current exists in the metal resistor connected to the battery. Which nl/ *g4t4 5emtct4vmm one of the following choices best describes the direction 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 resisrs:;4zkeareh 4x:dztdu-5 w5 tors are connected in parallel, the_________each resistor is th sukdrtedz4- w5;e :h4za:5 rxe 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 thiba(pmj eq * -5xvehoui2gk8+8n filament wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb remain much cooleri be8-g 8j p+5o *hma2kxequ(v. 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 light:(oeji;s 4d tns are being replaced with LEDs. LED is the acronym f tjen(i;os4d:or 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 resistorq l5 lm,+qwv;rygca((cai:badeg85 )zz v/7 s has length L and cross-sectional area A. It is to be placed in l(+) 5ma5,w8zayec;rg lg7(zb/vv :ai cqdsqto 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 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. +94fizx5jrt 5v u1k zbs y9t.fee6n -gWire II has twice the diameter and twice t65gzv9jf4sx f nzb1i9k5r+e.ute yt -he 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 of the same material but has twice the diameter and half t.qgu)( (o l:34ky4fh3 x.sw+ m0e ubjzlaccizhe length of wirxohskjicz.4q3+cf ezlwmuy.3 g :4 ulb(0)a(e X. If wire X has 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 pg,u :w8ttku4y iece of material is then drawn so that it is a cylinder with new length 2L. What happens to the resistance of this material because of this procesy8w4u ttu:g,ks?

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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. dp n;(5 dta:byHe decides to modify the filament. How should the filament of a lightbulb be modified in order to mab5(d dnay:tp; ke 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 y1e 3diqcq 1(y/5mfu jlength and radius of eachef /q (udc q1yy351mij 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 3*olw0mtc/e l+ab6c 7 8 mchgwbattery 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 in series to a fourth resistor.”87a+w 3 molg 6c0cbth* wl/mce 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 cvgq n , p )1bvwov+.qh7n9(tjcircuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. Thejw()9v,hp7 gno 1 qt.nc +vbqv 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 circuit shown to the right. T )f+mq2 azxoli0nuu(6he three bulbs 1, 2, and 3 - represented as resistors in the diagrmxn 2f+0oqz l a)(u6uiam
- 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 curretm8q0,s+p n4q.iw;dv bmfs / anz,d7r nt in all three resistors 8ms47/p.+iz n; dwadsrf0,b vq nt,m qis equal, 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 at right represents a simp kk8wu( typ)5c,q;w1sw:ns gvle electric circuit composed of 5 identical light bulbs and 2 flashlight cellskswkvs15)wc t ( y p,:nqwu8g;. 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 stxm inms-h )8bu7-lo6 catements is NOT true concerning the simple circuit shown where resistors R1, R2 and R3 are have equal-mlu mnxi-6 7o)8bcsh 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 0bd w 2vp6y *jqhnc+5ja 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 pjb62njvy*+ 0 hwqdc5the 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 identified resistor inj1ltaj 7 ia8o6zk svs)bgwao7b)6/x 7 5 seconds once )v ao 7g8 /balwb7kizaj j6s)xt617o s 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 t 7rfz,d5-7f hdw nx wdk,, r5gbwh+-wvjx(t5circuit have the same resistance, which would dissipate the gre, h,-x5wfwdt 7bwfz,g 5t(nw7ddvh j + x-k5rratest 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 m 3ld)3. yogqjdiagram, the current through the 6.0 Ω resistor is 1.0 A. What is g33joqyd.ml ) the 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 connect ku5cr j3tu6(oed in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistkuuor c(56 jt3ance 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 tbnku:6 fuap f.) 93wzuo a battery. Supp zbw6: p.uuaf9n f)ku3ose R1 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 watts and 120 volts. l5 q m)my7 k,(fgxeod*What is the maximum value of the current under these condiydx7km5*omg)e l,f ( qtions?

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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 lg*glcg6g q8,go (.jayightbulb designed to operate at 120 volts?j,q .gg8gy*6a( g clog

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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-2p6y0 1diefzn9kr jg a 4 ohm resistor that is dissipating 36 watts of power?i06p1ek gfnzj yr9d2-

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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 clotpi10kq2d 1urg hes is marked "120 volt, 600 watt.” In normal use, the c1q ruip1g2d k0urrent 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 fokink7) ,-y w3 fukugo:llowing resistances could NOT be produced by a circuit containing only three identical 6Ω 7k3)g -u kkiuwfyn,o: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 three 1.0.kr,hg -// xm iy4akc4qtce6m Ω resistors. Which of the following equivalent resistances CANNOT be produced using aax4 / mrk h qymic,t./k64-egcll 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 differenupbuju0 89 kkjy n))4gcocb-y9k*yr )t values can be connected together in different configurations. If all three resistors are used in a circuit, how many different values of total resistance capun4y9 j c))9gbr*)kuk ycu jy okb8-0n 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 to/r7 z 54zdg)usey5l5z pke.i.w6 uxyotal 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 is ze6)yzz7syz rog e5w 5ku4ei /.uldpx5. ro.

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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 connectedno.7yn;q +,5btz cag n in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about the resistances is correct?gn c a+,b. ;nyzt5oq7n

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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 ofbixd r/(fsr;v+s/u k l6sd(w 1 12Ω when operating at 120fsdd( ik ;br x//ssru 6+vl1(w volts. What is 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 resist 8amkgu )yve:ga3yi(6y4 qmz7 or that is dissipating 36 watts of powe6qg )gk: z7yuy 4m(am8aey3 ivr?

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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 amperesngjj3;y.)t0izwsq) l ac, zw , of current when connected to 120 volts. If the price of electricitac0) lqgw yt,,znzsw j.3ij);y 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 100W lighta/)3bebhezj h r2r9 p-bulb lit continuo )j/hezha ep-bb 3r29rusly for 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 z4la8l+lbk(yd1ls m z5y 6 ;pra power of 24.0 W associated with the bulb. Which y+ y8lp b(rl4 z5s6l mzk1d;laone 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 family of six owns a c 8imfmt )(( 6i ma70cyqs0)pokg+km9;h uitnc omputer 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 is the maximum number of the computers can be o0acfumm ci6 p8+k7(om(i )g9t0)imkn qt; yshperating 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 tp. 9 0mkj * c13m *mnnsx45uair13fvn)pvzd rio form a simple circuit as shown to the1mr u*.vrapd)z mijs3p5n1cvxi n403 n k*m 9f 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 resisto us(s jl4jcc j* d*j0h;b2wkw8rs to form a simple circuit as show*s; w8 20lwj cj4jhb(s *ujdckn 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 three rez30pay593(8x5scovhrhv j s lsistors are connected as shown. With the switch open a3x 9cvy 5hphj5os03arvsz8( ls 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 three resisto: rs2mc3qb n ,63lkg iqd1-rrlrs are connected as shown. With the switch open as shown in slr23,k3mbiq-g: q 6cr n1rldthe 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 wp ib82 y cw):6ecgwpu v++6;ddww8(kb. ofea, an ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ampereg2 d( y epwi oe:+.bwwav86 wu;p+)8ccwbdfk6s.
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 resistancem;2b /r57rjml0 iyob u? Assume that all wires are ideal, the battery has n m2jlob7myi0bur5/ r; o 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 *oj r ul/u17qdq3df0b resistance of the circuit shown to the right with resista j3ddf0*rb/ olu7u q1qnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identi-s8 hj ntr;/mh wtz1ys71x6facal resistors connected in a combination serie86srz;ntmt/ 7h1 saf 1x-yw hjs 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 below5k 03s+ aonwba q-atk9 shows five identical resistors connected in a combination series and parallel circuit to a voltage -wt9n aakqb3o0k5s+asource.
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 identica*k l 3d)7wuqv7quk .vwc2yql* l. Which bulb will be the brightest?uvd )k.y*qq 7*qc27u wll3wk v


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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 three resistors w8+i3tays wi1 ,gwvus .y4c/vare connected as shown. With the switch open as shown in the y3ty,+14v.s 8vwi w uwagcsi/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 thrlkjrhy6 ,p6b k+1-giaee resistors are connected as shown. With the switch open as show jh6k6gyka r-1p,+il bn 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 i4 u ytcdyy5ya4()c a1fdeal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.4ad5u41)(tc yyc yyf a0 amperes.
When the switch is closed, what would be the current in the circuit?


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