State principle of perpendicular axis.

If I_x and l_y are moments of inertia of the lamina in the plane and I_z ismoment of inertia of the lamina perpendicular to the plane, -then the mathematical statement of the principle of perpendicular axes is

State and prove principle / theorem of perpendicular axes.

Obtain an expression overline tau = overline I xx overline alpha for a rigid body rotating about perpendicular axis

State and prove principle of parallel axes.

State the principle of potentiometer.

State the principle of workingof transformer?

State the principle of moving coil Galvanometer?

State and explain the principle of superposition of waves.

State principle of cyclotron. Derive an expression for the cyclotron frequency.

State the principles of electric motor and electric generator.