A bar magnet of moment of inertia of 500 g cm^2 makes 10 oscillation per minute in a horizontal plane. what is its magnetic moment if the horizontal component of Earth's magnetic field is 0.36 gauss?

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A bar magnet of moment of inertia of 500 g cm² makes 10 oscillation per minute in a horizontal plane. what is its magnetic moment if the horizontal component of Earth’s magnetic field is 0.36 gauss?

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