To damp oscillation, the pointer of a galvanometer is fixed to a circular disk which turns in a container of oil..

To damp oscillation, the pointer of a galvanometer is fixed to a circular disk which turns in a container of oil. what is the damping torque for w= 0.3 rad/s if the oil has a viscosity of 8 x 10^-3 Pa? Neglect edge effects.

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