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State SI unit of Magnetization.
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State SI unit of Magnetization.
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The displacement of a particle performing simple harmonic motion is `1/3` rd of its amplitude. What fraction of total energy will be its kinetic energy?
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The current in a coil changes from 50A to 10A in 0.1 second. The self inductance of the coil is 20H. The induced e.m.f. in the coil is ______.
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A particle performing linear S.H.M. has a period of 6.28 seconds and a pathlength of 20 cm. What is the velocity when its displacement is 6 cm from mean position?
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Distinguish between ‘paramagnetic’ and ‘ferromagnetic’ substances.
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Distinguish between ‘paramagnetic’ and ‘ferromagnetic’ substances.
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The co-efficient of mutual induction between primary and secondary coil is 2H. Calculate induced e.m.f. if current of 4A is cut off in 2.5 x 10-4 seconds
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What are the forced vibrations and resonance?
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Which of the following substances is ductile?
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Which of the following substances is ductile?
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If the radius of a sphere is doubled without changing the charge on it, then electric flux originating from the sphere is ______.
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Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.
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Give any ‘two’ points of differences between diamagnetic and ferromagnetic substances.
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An iron rod of the area of cross-section 0.1m2 is subjected to a magnetizing field of 1000 A/m. Calculate the magnetic permeability of the iron rod. [Magnetic susceptibility of iron = 59.9, magnetic permeability of vacuum = 4π x 10-7 S. I. unit]
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An iron rod of the area of cross-section 0.1m2 is subjected to a magnetizing field of 1000 A/m. Calculate the magnetic permeability of the iron rod. [Magnetic susceptibility of iron = 59.9, magnetic permeability of vacuum = 4π x 10-7 S. I. unit]
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With the help of a neat circuit diagram, explain the working of a photodiode.
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The maximum velocity of a particle performing linear S.H.M. is 0.16 m/s. If its maximum acceleration is 0.64 m/s2, calculate its period.
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Distinguish between forced vibrations and resonance.
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