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Physics with Akhtiar Ali Bullo
  • 5 months ago
Dailymotion short

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What is jerk _ what is jolt in physics ?
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Find the current in a long straight wire that would produce a magnetic field twice the strength of the Earth's at a distance of 5.0 cm from the wire.Magnetic field of Earth= 5.0×10^-5 T
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Compute the magnitude of the magnetic field of a long , straight wire carrying a current of 1A at distance of 1m from it.Compare it with earth's magnetic field.
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A moving coil galvanometer has resistance of 50 ohms and it gives full scale deflection at 4 mA current. A voltmeter is made using this galvanometer and a 5 kilo ohm resistance. Calculate the maximum voltage that can be measured using this voltmeter
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A solenoid has length L=1.23m and inner diameter d=3.55cm and it carries a current I=5.57A.It consists of five close packed layers, each with 850 turns along length L.What is B at its center ?
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4 weeks ago
A wire 1.80m long carries a current of 13.0A and makes an angle of 35.0⁰ with a uniform magnetic field of magnitude B=1.50T.Calculate the magnetic force on the wire
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The poles of a horse shoe magnet measures 8cm × 3.2cm the magnetic flux density between the magnet poles is 80mT.Outside of the magnet the magnetic flux density is zero.Calculate the magnetic flux between the poles of a magnet.
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4 weeks ago
An aluminum window has a width of 60cm and length of 85cm as shown in the figure. a.When the window is closed the magnetic flux density is 1.8×10^-4 T is normal to window. b.Calculate the magnetic flux through the window.
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4 weeks ago
Abbreviation of AM and FM_Full form of AM and FM_ Acronym of AM and FM
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4 weeks ago
Abbreviation for radar_ Acronym of radar _ Full form of radar
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5 weeks ago
A carnot engine absorbs 52kJ as heat and exhaust 36kJ as heat in each cycle. Calculate: (a) The engine efficiency (b) The work done per cycle in kilojoules
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A carnot engine operates between the temperatures 850K and 300K.the engine performs 1200J of work in each cycle, which takes 0.25 sec (a) What is the efficiency of this engine ? (b) What is the average power of this engine ? (c) How much energy is extra
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A heat engine performs work of 0.4166 watts in one hour and rejects 4500J of heat to the sink.What is the efficiency of engine ?
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A heat engine works at the rate of 500kW.The efficiency of the engine is 30%.Calculate the loss of heat per hour.
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6 weeks ago
Temperature difference between the surface water and bottom water in Manchester lake might be 5 degree centigrade Assuming the surface water to be at 20 degree celsius.What highest efficiency a steam engine could have if it operates between these two tem
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6 weeks ago
In a high pressure steam turbine engine, the steam is heated to 600 degree centigrade and exhausted at about 90 degree centigrade.what is the highest possible efficiency of any engine that operates between these two temperatures?
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One kilogram of ice at 0 degree centigrade is melted and converted to water at 0 degree celsius.Compute its change in entropy.
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