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习题练习:.Resistor.

 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 reszv bzyt 6qh,*-by)b 2jistor connected to the battery. Which one of the following choices best describes the direction of electron flow through the resistor and the direction zy yh ,6vb2j bz-b*q)tof 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 in:*sk b5y1gdvl parallel, the_________each resistor is theg kybl:5v1 sd* 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*gq77(1i aox fa8kri uh6j,wft y1sa + wire of a lightbulb causes the filament to become white hot, while the larger wires connected to the lightbulb r 7 yiu x (1,1sqgja i7a*k6+tfaohwrf8emain 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. LEy p0uyxubm ac 827 n3)xx+)oskD is the acronym for which one of the following choices?n)x mxuby)su p3kox+82 0 7cay

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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 hd 0rm5n ;cq l+wqq*.zgraphite resistor 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 resinrz5.hc ;w+dm qqlq *0stivity 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,l*ekneq,)s s of the same material. Wire II has twice the diameter and twice the length of I. If I see,sl k*nq, )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 q9gw(2dmm:2put twc7 diameter and half the lengtc:72wp29m (g tuqm wdth of wire 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(pi*avq) 0 rxc m,9nd;masxr* L and radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. What hm rmxa*xpr9*dqs ; c( vn)a,0iappens 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 bjyv v if)snyhdxsd,9733 )s )zrighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more)z x)dsssi7y v ynj39hfv,d 3) 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 length a r :zwx6zto8rf+-pwz/laj9j )nd radius of each re+trzowl)fr :a/j9 wzz 68-pjxsistor 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**tg4smn t8w/ygqw5z m: bua 58nh yv+ of resistance R, are connected to a battery in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resist5 u8h*:w+ysnt yz85t4 b/m nvwmg *agqor. 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 to ds*mtp-4d; khe accompanying circuit diagram has internal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is md;-4pm s*dk toost 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 sfphj: 73qo , a ulwn0 3ydvwrl;m,(vf1hown to the right. The three bulbs 1, 2, and 3 - re0p:uyo l (wmaq vflw,3v1rjh37 ;nf, dpresented 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 electrinlv10 r+x6)l g; zvf(v6 jedtahu5; rlcal circuit at the right. If the current in all three resistors is equal, which of the following statements musth6v 6 r)u;z0jxg(5 ranv e+ltdfl1v;l 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 55k a6fi0hfs-k identa6kf0s- ihk 5fical light bulbs 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 s18v fs;8,6uyxk4eiw iyc )iw ihxcu;8imple circuit shown where resistors R1, R2 and R34wc u;iy),iev1 w88ixx8ih yc6s ;fuk 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 conne 1y(v3xzh uoj-/-ggg fcted in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements ar ohv gg-/f- (j3zux1yge 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 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 thrm9:f),krk ilv7 kr 8gbough the identified resistor in 5 seconds once the circuit wa) m,k7vf krbk9:r 8glis 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 the sw-k m0ve n;4dg-;mgvndw0e 4k ame 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 curbu: tl+itf+1 irent through the 6.0 Ω resistor is iil1ftt+b: u+1.0 A. What is 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 connected in series *ok 4ky3ecw 2+kzu3 5wnfh(yfto a battery. Suppose R1 carries a current of 2.0 A, R2 hakh3zy5o+n3w ykfe (c*f 24ukw s 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 ino, uot 12gqfc gqrur/txq5 +)3 parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates +qr)toog qq/3rcg,f51u utx2 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 maximu.zzkqkw609t1w phcpswkc3) s6a +-aq m value of the c 0sa6+p6kh .z) q-w kat31cwwzqp sc9kurrent under 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 resif*(79vu te)ym+z +oeb)mbo fcstance of a 60 watt lightbulb designed to operate at 120 v)bc+ fe)+b9etm*z(uvy of 7 omolts?

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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 t c*0grm d49zoqhat is dissipating 36 watts of powercm *d4gqr09zo ?

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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 wat7kzyuo e. m+y)t.” In normal u7 uy)ke+m.y ozse, 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 circuit x*d8*z;mpa. rb:zrvpd4c no)9r.j oms l/b 3hcontaining only three identical 6Ω resistr rb3o alr4m .pm.8j z*;*v:9docdb)xz/hs pnors?

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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 following equivalenty8 i4+o/pphg *ebgtp8 resistances pp*pb/ 4 gtoigey+88h CANNOT 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 dl( szpo due8r0- t;q3bn9xud7ifferent values can be connected together in different configurations. If all three resistors are used in a circuit,(3p8zr t70nd- uo9ubxlde s;q 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 q4mq zz17hu8p is connected to a battery, a total power P is dissipated in the7um4 z1hpqq8z 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 conny.c l *(gyr;,dypcaq ,ected in parallel, the equivalent resistance of the combination ,(cpr .a ;d*ylcgyqy, 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 whcs(o8( zqbr(v- -kn xfen operating at 120 volts. What is the minimum amount of time that it would takevzsx( -8on(bk f-(cqr 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 dvck)vg,z :2 gpissipating 36 wat:cg )zgpv vk,2ts 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 horvu8e ne vgi 7f6y 2f9-k1ox8eater draws 13 amperes of current when connected to 120 volts. If the price of electricity19- rfifeko78e2vuv g86nyx o 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 lightbulb lit colp(8tfkxt2c (j ikl;+ ntinuous(tif+j(8lxcl ; k tkp2ly 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 thr., b0d1aisof:acq 4 pwil4e5e ough a lightbulb results in a power of 24.0 W associated with the bulb. Which one of the following choices best rep 0ii41,aw sflq5bce4.d o:pea resents 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 famhoo,w s/r*(c eily of six owns a computer rated at 500 watts in a 120 V circuit. If all computers are plugged into a single circuis(/or,oc we* ht 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 circuxl6 wmjt5 d3n2it as s x5wtlmj 3d2n6hown 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 circu d-r 9 okz-v81 9jpe/tqmcc/jiit as shown to thck9zet8r/-/j do 1v9pcjmi- qe 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, azd5z3ojtbvc +05( 9 hlqn +wze switch and three resistors are connezc5 hv5 qtezlj9+0z(n3 wbo+ dcted as shown. 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 xq0 *iz1h+d canw6t7 zammeter, a switch and three resistors are connected as shown. With the switch open as shoh 0wz17ac* in6+txdzq wn 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 i(v1 vk1w0akrkdeal ammeter, a switch and three resistors are connected as shown. With the switch open as sak kvr 01vwk(1hown 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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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 equivalenp3fmmd7p /)vw t resistance? Assume that all wires are ideal, the battery has no internal resistance, and all three resistors have identical resistance R.mp)fpwvmd37/


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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 cim40ghe+h8f3y/kzj ox)fq s8ircuit shown to the right with resista)f 8i38kxfqysgoh 0z j+4/ hmences $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 identical re vta5wqsd3 hc *(uq- .xcc.2)f m6clwpsistors connected in a combination 2(ccthp5-.lwfs x c) cuqad*wqmv 36.series 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 s )fjrsm ,+zzk4hows five identical resistors connected in a combination series and parallel circuit to ajm, 4kr)z f+sz 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 ideng5--/x lk ehxntical. Which bulb will egn5x/kh x l--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 ammeter, .m 7u od+jh (uo .+ueo+7(rojjpkcomug t0r*:a switch and three resistors are connected as shown. With theg+u0ho: o*m 7t( ooj+meupujcr.u.o( r 7 jdk+ 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 resist;-a .2srm2ju zeamj3bors are connected as shown. With the switch open as shown in the diagram the ammeter readme3b a.- 2rmujazsj2; s 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, -)9lobwy . 0ipd zyi*iv1q/bxan ideal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in iodqyb)pb.lx*i0y -1w /9ziv 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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