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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 re 9o6)xv+vphhdcgt /*k sistor connected to the battery. Which one of the following choices best 6h* kvt+ v9/dpc go)xhdescribes 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 resistors are connected in parallel, the_________each rxqx h,mpeh: v-/-fao-esistor is the samephx--q,ev:h m a of-/x.

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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 filzqdrn/k 7sw1cv56 a +a8z vcu3ament to become white hot, while the larger wires connected to the lightbulb remain much cooler. This vqsacu3+8z zv /1rcn7ka5 w6d 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 wawve5k1rz 2 or5wh1 3the acrony35ha5wev2wz o wrr1 k1m for 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 resistor hdl812 s6szqzkas 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 resistivity to the old resistivity of the cylindricz 86qs 1zl2skdal 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 i-8(2eoy-wzd p,9-qi qbqs yq are made of the same material. Wire II has twice the diameter and twice the length of I. If I has resistance R, II has resioyi z p-dqb-y,8qiq-e( qw 9s2stance

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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 samn0 zr oem:gn1h mk)ezj0y fp56u)ur:1e material but has twice the diameter and half the length of wire X. If wire X has a resistance of R t)u6 e 5rf0:nz:uk)rejzmg m 1nyhp0o1hen 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 ab sz+yrfj jd w-,g(e-qrlk3; +nd radius r. This piece of material is then drawn so that it is a cylinder with new length 2L. Wq (,wbl +drjr+;3zky-fe-j s ghat 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 a brighter ligrutav3 g2oprf6f+)5yht bulb. He decides to modify the filament.a g56o vrpt+) r2f3yfu How should 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 cylindrical resistors are made of the same mca uy hq j+ujb23.bjk:p a1-i1aterial. The length and radiusu3:hj - i1ubb kyaj21ac. p+qj of 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, armu2+m 1(m n,yz sljebuds -fm5/v5)f ke connected to a battery in the following way: “Two resistors are connected in series. This combination(/1, nuf-sdb2jmmvfy5ms)5l eu+ mkz 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 diagram has internalv4i)+0g nw 46mmhom aa resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter rea+n4g4wmo6 ) ih0av ammding 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. The thre4g4icjyls.22*ot. i pgp ep9me bulbs 1, 2, anogpymp9ie*s2j 4 . ictp2.lg 4d 3 - represented 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 right. If the current iqk r8jh u,-46rca*l ian all three resistors is equal, which of the following statements must be true? r8a4jq-ca,il khr6*u


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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 si0woulf,55lc k mple electric circuit composed of 5 identical light bulbs and 2 flashlight cells. fo l0l,cu kw55Which 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 x afh-6s/ vkfws x83e4concerning the simple circuit shown where resistors R1, R2 and R3 are hk a4 fexs-vw6f/ 3hx8save 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 rom0c(-3inghp)q,s(sy t:bog6 nw b 0connected in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X (0iyqng bb (mso ng 3):h-6rto,0spwcandY 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 .s x2x; z+g3pdsepj 8u the identified resistor in 5 seconds once the circuitessx83jp2dz u gp+;.x 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 ha*m0,p z,cfbz ave the same resistance, w,z0,fmapzc b*hich 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 z.hl;kt)ov pye 1 b5e3current through the 6.0 Ω resistor is 1.0 A. What is the powerlt)1 vb35 y;kpoee .zh 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, andrbqif/is 1bs906 0xto 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 diss ss69 biorift01 0/bqxipates 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 resisto9qes-i dve0i2 rs R1, R2 andR3 are connected in parallel to a batterv 09sd2ee iq-iy. Suppose 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. xs 65/)v5hbyruci6 vjWhat is the maximum value of the current under th xh b)sr6j5u6yvi/5cvese 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 r,o qxex 0m2p3eo:y,pdesistance of a 60 watt lightbulb designed to operate at 120 ,qmdo:xe,3oyx20e ppvolts?

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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 dissipatine4mj(i w9q ry8sz-3rm g 36 watts of powej(sqmer3 zy4w mri-8 9r?

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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 mseg 650 ixv/xi0s)rh marked "120 volt, 600 watt.” In normal useh)ei65 0 x s/mgvirs0x, 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 followingqs.wkl 4gb0bcu/ 6 e3m resistances could NOT be produced by a circuit contain k63eqb 0g4mlb/.wu csing 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 given three 1.0 Ω resistors. Which of the following equi4inku im7.*s3wkzq k)valent resistances CANNOT be produc suiizk kq)* .n7km34wed 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 can be connected tog; a,o4v-o8nz b azw2vqether in different configurations. If all three resistors are used 82wv v;nz,-4ob a ozaqin 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 res nc3 f7w4tj1at:9pli21dmha biy m3g,istor is connected 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 sdni hj3y:1 mb1 ap3t4t7mg9fiw ac,l 2ame 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 resistancb( hp a1ax 3ft857zoqfe R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the following statements about po t1f(f8b37zxhaq a 5the 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 stku78 qbfwp61olj t78*a5 md has a resistance of 12Ω when operating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from t qfjo71t*kp75b uls6a8mw8d$15^{\circ}C$ 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 currttiy (a 4:qjtv j(mx50ent flows through a 4 ohm resistor that is dissipating 36 watts of poweia( y m:(t tjtx4jqv05r?

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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 connecxh krw1t zc h;:-brg3;ted to 120 voltsg1 xbwkh;tr : -hzrc3;. If 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 keep a 100W lightbulb.8p5dven: z kb lit continuouzb ke5p.:n8 dvsly 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 lig(4u sqol7 8gt+ r(txtehtbulb results in a power of 24.0 W associated with the bulb. Whist( r+t74o uge 8lq(txch one 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 computer rated at 500 watts i9e+6*.ekm007c d wgfrt 3i nfnwphre5n a 120 V circuit. If all computers are plugged into a single cw hdg7i+prkfwe06*e 5 cm3r nf9.t 0enircuit 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 tle uzj pzwg7f*.26 52tygn p3go four resistors to form a simple circuit as shown n 5t2yg ugpf3z*2lp7.zgej w 6to 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 (dqnk iz: 8sn9hg7q j*is connected to four resistors to form a simple circuit as shown to the rigs9n8g*h7d jz q:iqnk(ht.
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 resistoseeo2e /67 g+kmrl qa0y5-y gfrs are connected as shown. With the switch open as shown in the diagra / yky05+o6 gagelqr2-se7fmem 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 resisf,/ra u7a0rg htors are connected as shown. With the switch open as sh g, /f0uarr7ahown 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 are conn cbjbn4pj,ux;jb m,461gr :uyd ui ;,pected as shown. With the switch opencugbj4i; y njpd,,,; 41bu m:xrpb6ju 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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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 re,5xd sveuijez 68u 2tliyo+ z.v2y7+esistance? Assume that all wires are ideal, the battery has no internal resistance,6s8v+,zei2i5ue.ev jo zt 7l y2udxy+ 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 equivalentpm 80q mrx2.pgg7p n9h resistance of the circuit shown to the right with resistanc0pmg 2mq7n hp.98gx pres $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 resistors connected xy 3k(s- 6lquiin a combination series and parallel circuit to a voltage source. lq-s ( 6iyxku3
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 ia jj: d-l z611ftuocm/nj4gh( dentical resistors connected in a combination z1 (uot1lg4/j-mf jhac: d6 jnseries 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 diagr1rmp*o7o 0w ytam, all of the bulbs are identical. Which bulb will be the brightest? 7mw tpryo*0o1


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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 h5 /)lm;r mcbyswitch and three resistors are connected ascblmm/h; )y5r 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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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an ide)2)qhwa cik h1we/36chot+cmal ammeter, a switch and three resistors are connectet w/wc3ko hh) c)hcq6a+m1ei2 d 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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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 6t)yv 9etx gzk,p-7cw three resistors are connected as shown. W9pv6)cykx t7 t w,egz-ith the 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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