Physics with Akhtiar Ali Bullo

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In the absence of external torque the angular momentum of the rotating body is

Physics with Akhtiar Ali Bullo

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The diameter of Moon is 3480 km. What is the volume of the Moon? How many Moons would be needed to create a volume equal to that of Earth ? (Hint: Radius of Earth = 6380 km )

Physics with Akhtiar Ali Bullo

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A watch factory claims that its watches gain or lose not more than 10 seconds in a year.How accurate is this watch, express as percentage ?

Physics with Akhtiar Ali Bullo

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One hectare is defined as 10 power 4 meter squared.One acre is 4 ×10 power 4 foot square.How many acres are in one hectare ? Hint: 1m = 3.28 ft

Physics with Akhtiar Ali Bullo

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Two students derive following equations in which x refers to distance traveled, v the speed, a acceleration, and t the time and the subscript (0) means a quantity at time t =0 ? (a) x = vt² + 2at and (b) x = v₀t + 2at² which of these could possibly

Physics with Akhtiar Ali Bullo

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Find the volume of rectangular underground water tank has storage facility of 1.9 m by 1.2 m by 0.8 m.

Physics with Akhtiar Ali Bullo

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A rectangular holding tank 25 m in length and 15 m in width is used to store water for short period of time in an industrial plant. If 2980 m ^ 3 water is pumped into the tank. What is the depth of the water ?

Physics with Akhtiar Ali Bullo

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An aeroplane travels at 850 km/h. How long does it take to travel 1 km ?

Physics with Akhtiar Ali Bullo

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What is the area and its approximate uncertainty of a circle with radius 3.7 ×10^4 cm

Physics with Akhtiar Ali Bullo

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What is the percent uncertainty in the measurement 3.67 plus/minus 0.25 m

Physics with Akhtiar Ali Bullo

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A conductor of length 0.4 m moves at a velocity of 5 m/s perpendicular to a magnetic field of 0.3 T.Calculate the motional EMF induced in the conductor.

Physics with Akhtiar Ali Bullo

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A transformer has 1000 turns in its primary coil and 200 turns in his secondary coil.If the primary voltage is 120V,calculate the secondary voltage for step-down transformer.

Physics with Akhtiar Ali Bullo

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An AC generator produces an alternating current with a maximum voltage of 240 V.If the frequency of the generated AC is 50 Hz,calculate the peak value of the voltage.

Physics with Akhtiar Ali Bullo

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A coil stores energy in form of electric potential energy of 0.2J when it carries a current of 2A.Calculate the inductance of coil.

Physics with Akhtiar Ali Bullo

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An inductor with an inductance of 0.02H has a current flowing through it of 2A.calculate the energy stored in the inductor. Twelve class physics numericals Inter class physics numericals 12 class physics numericals Physics class 12 numericals New sind

Physics with Akhtiar Ali Bullo

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A transformer has 200 turns in the primary coil and 400 turns in the secondary coil.If the primary voltage is 120V, calculate the secondary voltage for step up transformer

Physics with Akhtiar Ali Bullo

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Two coils are placed close to each other.If a change in current of 3 A/s in the first coil induces an EMF of 4 V in the second coil, calculate the mutual inductance.

Physics with Akhtiar Ali Bullo

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A coil with an inductance of 0.5H experiences a rate of change of current of 2A/s.Calculate the induced EMF in the coil

Physics with Akhtiar Ali Bullo

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Two coils are placed adjacent to each other and a change in current in the first coil induces an emf of 0.5V in the second coil. If the mutual inductance is 0.2H ,Calculate the rate of change of current in the first coil

Physics with Akhtiar Ali Bullo

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What is flux density at a distance of 0.1m in air from a long straight conductor carrying a current of 6.5A. Calculate the force per on a similar parallel conductor at a distance of 0.1m from the first and carrying a current of 3A .

Physics with Akhtiar Ali Bullo

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Water waves are

Physics with Akhtiar Ali Bullo

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What is charge density ?

Physics with Akhtiar Ali Bullo

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How can we get scalar or vector through product of different types

Physics with Akhtiar Ali Bullo

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Perpendicular/Base is equal to _ P/B is equal to

Physics with Akhtiar Ali Bullo

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