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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: 匿名未登录  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 electri9 v0gksboia*d o:e-p47ey2 ixc current exists in the metal 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 electric field throk: bospe dvg4i oe702-ax*9iyugh 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_________eachb 1h3h;o 4wrcs resistor314hwor c b;hs is the 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*ei0 gi:exg1u5kd-qe filament wire of a lightbulb causes the filament to become white hot, wh uekqdie*x-5g0:i eg 1ile 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 household lights are being replaced with m r .laz)b7o*qLEDs. LED is the acronym for which one of t).*b7zaqlmr ohe 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 cylindrical0(t1s0mifivry bv-* p graphite 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 resistivity to s v0bi 1i0m*tf-( vrypthe 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 mab: nbo1iewrn2 hd kqx4 94ke7;terial. Wire II has twice the diameter and twice the length of Ir7xe w4bkinh k;noqd42: e b91. 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 2mm8 kbn.6vu,( oaa2cn2b qhk but has twice the diameter and half tb. cbao kkm8m2anh262 v (qn,uhe length 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 resis. w *xio/j7zl,bwek :dtor has length L and radius r. This piece of material is then drawn so that it is a cylinder wit 7.ilbj:zw/ekw,d* xoh new length 2L. 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 a brighter light bulb. He deccfpj+cg40b,u9 hs+t s r72 fjuides to modify the filament. How should the filament of a li9jj+2fgcc bufrh up0,+ts 47sghtbulb 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 madpgp;i mr 8k3/terial. The length and radius /krd;3p8pigmof 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, are connected to a batterx h x0n,f70btvy in the following way: “Two resistors are connected in series. This combination of two resistors is connected in parallel to a third resistor. This se0xb ,70hvnx ftt 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 int rx8 jyzv8s(3xernal resistance 10.0 kW and the ammeter has internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmervx3y8s j8x( zter 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 sh32vmj:s -idw/5-h hzr)hsyxfown to the right. The three bulbs 1, 2, and 3 -)-5zd3: hsx -ish/jwmy2frvh 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;tu4quhkqv)8p2hsq vyjg44wj p17 kmq 9 7b3l. If the current in all three resistors is equal, which of the following statements must be true?)p9;q3 lkkqgjtb4 87qv w4vs27mpuqhuy h41j


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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 cnm/ovx8 uqz(o9 0+sj k2s7fszomposed of 5 identical light bulbs an9ouo /f svk8s 0jznx(qmzs2+7d 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 simpzzj87j u/r3gdf (oo8jle circuit shown where resistors 8jf(od3gruoj 8/jz7 zR1, R2 and R3 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 connected in series to a battery. Bulb X2s/vujrlh7 - 52ghry j is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other tu5g j7yhrj-/l rhs2 v2o 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 cou ul /smi+q4dslp )q7b t xt/;(+n:ayzulombs will pass through the identified resistor in 5 seconds once the circuit was i mqs/ul) qt+p4:+z7;lbdsuxn( t/a yclosed?


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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 .l0laqjkwh q3qjv( 9*simple circuit have the same resistance, which would dissipate the g3qkl.0l(qwajhj v9* qreatest 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 current throug(z14z o:k ewzg-kx+gmh the 6.0 Ω resistor is 1.0 A. What iszekg-z zm+x gkw:14( o 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 connec q fipkad/b6)3ted 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 W of powp 6a)dq/ibkf3er. 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, Rol/9e8ua ffi+2 andR3 are connected in parallel to a battery. Suppose R1 has 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is 9iola f/uf+e8the 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 vx5-7 +h y8f iff.hznwisy,o7 lolts. What is the maximum value of the current under these co7s.xnw5+-oilzhyi7y h8 ff f,nditions?

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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 operate at 120 l(*5ki*mm 5srlobiv/vrvi k5iol mb*(/s m5l*olts?

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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 z2 i,xd)sb0qvthrough a 4 ohm resistor that is dissipating 36 wattq, bsiv2dz )x0s of 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 watt.10 kuf h*hkf6m,; b lvj/wm3ii” In nh khil/16uv3i, f*wjkf b0;mmormal use, 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. cdyq90w7tek produced by a circuit containing only three identical 6Ω rd wctek 90.y7qesistors?

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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 thre3qvu*gv*dq 9s1+mwia.x :c n pe 1.0 Ω resistors. Which of the following equivalent resistances CANNOT be produced using all three r*: 1p9nsv3wmqg aid*c.u+ v xqesistors?

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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 d hy7j43.zja ibe connected together in different configurations. If al34ihj .zy7 dajl 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 conne6+r:k+ gn1,v ks7 tf;qcw4qp joqk ez4cted to a battery, a total power P is dissipaters6p1kn kqq;wf z4vj+4+7ecg q,o: tkd 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 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 ao zvbtjjxc1,1, )vdq 9nd R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of the followi)vd,zj 1j,9boqt1xcvng 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 whe8 x8kbohv;q0 ui1fo o7q,uh/g n operating at 120 volts. What is the min buhk;o1 8g78qf0vo,uqx/i hoimum 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 resistor that a.l aok4i8/nbq2 s7 3mu5qxqo is dissipating 36 watts of powe./53s7m q8lxo4uiqbko2qan a r?

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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 ampeiz16s*.08byq .9;aryjsgk*s p 9ovds jgpn m1res of current when connected to 120 volts. If the price of electryqm;s.vo1 19jkg. bsp rpn0y6disz 8s *a9*jgicity 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 l0 lmwdv 0f54soit continuous mvw0sld5f40oly 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 throub8 yiv4qa7blpk4;6,unpt 1 tu gh a lightbulb results in a power of 24.0 W associated with thi l 4a8,ky6u7pn qb4bu1t; tpve bulb. Which 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 off8mg2w( 3i494au aupxq4tf i f a family of six owns a computer rated at 500 watts in a 120 V circuit. If all compuwu g89u4i2 a3tiff4pm4ax ( fqters are plugged into a single circuit 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 resistoqu 2hjgu t;q*0rs to form a simple circuit as shown to the righutj0gu* q;2qht.
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 ret4dx+:c.s sjj; q*ue m9ox7m gsistors to form a simple circuit a.uox*sd xj9mt7 e; +m 4csqj:gs shown 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 resistors are convr g.9zrp/ lrea0az9 rs. 5ivf, :y*olnected as shown. With the*. r.5oge,:/a9vlra slzri0p zvy rf9 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, anw5db-8o3ayfs2f x4chul i 2q- 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 ampedchf-3u- y2f s8q 24aowil b5xres.
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 tpz 0 5phrqmx9u2+8gv ideal ammeter, a switch and three resistors are connected as shown. With the switch open as sho5 gurp+z08 xt9h2vm pqwn 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 r;bxpq bdv9pm qhrr.6g8 6drls v/ 59b-ight, what is the equivalent resistance? Assume that all wires are ideal, the battery has no internal resistancehqb6r s/9gvl.9 p8 dmprbdbx6;q 5-r v, 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 shown p8ds/6(0bsx no ny-nuto the right with resistanyo6s/8 n-d0n(xusbpnces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ 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 connezkr*lnia)c8qm s 90+lexz5 7sx*elc;cted in a combination series and parallel circuit to a v)5eiel zlcr+x;am q7 s s*08kncl*zx9oltage 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 shows five identical resistors coc+xo3: .mjcot o(yf3e 1ri b-onnected in a combination series an-ejr 3:ooxcot 1 +(ci. 3ybmofd 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 diami/e54imss 7cd.kd* b v06ogo gram, all of the bulbs are identical. Which bulb will be the bri4vd*gmo 0bi s5 c./msekod6i7ghtest?


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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 w5bb4t f5c s/bp3jc7;o k 4azgammeter, a switch and three resistors are connected as show5cfp b b5; sg4 zbw4kj3tc7o/an. 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 ideal ammeter, a switch an5 k+hov01w azzd three resistors are connected as shown. Wit a0zzh5kvo1+w h 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 ini so9 89 sq9lyz6rr ;2tkia:gdeal ammeter, a switch and three resistors are connected as shown. With the switci ry2s at6; 9ql 9:znksiro8g9h 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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