A bar magnet ,freely suspended in a magnetic induction H makes 20 oscillates per minute. When another magnet X is brought near it, the number of oscillations are found to be 10 per minute. What is the influencing induction of magnet X, in terms of H (where H >X)

A bar magnet of moment of inertia of 500 gcm^2 makes 10 oscillations per minute in a horizontal plane. What is its magnetic moment, if the horizontal component of earth's magnetic field is 0.36 gauss?

A magnet makes 55 vibrations in one minute where horizontal component of earth's field is 0.36G. If the moment of inertia of the bar magnet is 10^-5 Kgm^2 , find the magnetic moment of the bar magnet.

A bar magnet is vibrating in a uniform magnetic induction, the magnitude of which can be changed, its frequency is found to reduce to quarter of the original frequency, when the magnetic induction changes to 1.25 xx10^(-5) frac(wb)(m^2) . Calculate the original magnetic induction.

Deuterons are accelerated in a cyclotron that has dees of radius 50 cm and an oscillator frequency 10 MHz:- What is the magnetic field induction needed to accelerate the deuterons?

The ratio of magnetic induction at a point along the axis of a circular coil of radius 'a' at a distance x to a point where x tends to zero is [x>>a]

A bar magnet is vibrating in a uniform magnetic induction, the magnitude of which can be changed. If the frequency is found to reduce to half of its original frequency when the magnetic induction changes to 1.25xx10^(-5) frac(wb)(m2) . Calculate the original magnetic induction.

Two points A and B are situated perpendicular to the axis of 4 cm long bar magnet at a distance x and 3x from its centre on opposite sides. The ratio of magnetic inductions at A and B will be equal to