A small metal sphere is falling through castor oil. Write down the expression for terminal velocity in terms of coefficient of viscosity.

Derive an expression for the terminal velocity of a ball in terms of coefficient of viscosity of the medium.

A small metal sphere is falling through castor oil. Which of these forces change? why?

A small metal sphere is falling through castor oil. Name the forces acting on the metal sphere.

A small metal sphere is falling through castor oil. Name the velocity of the sphere when the unbalanced force on it is zero

When a metallic sphere falls through castor oil,its velocity becomes uniform,called terminal velocity. Rain drops falling under gravity do not acquire very high velocity.Why?

Cut a small sodium metal piece into two, watch it: Write down the equations for this.

A steel ball of radius 1 mm is falling vertically through a tank of oil at 30°C . Write down the expression for resultant force acting on the ball?

Under an external electric field electrons drift slowly inside the conductor. Write an expression for drift velocity in terms of relaxation time