What is the principle of a meter bridge.

What is the principle of calorimetry?

What is the basci principle of a moving coil galvanometer? Derive an expression for current flowing through the galvanometer in terms of steady angular deflection of its coil. Define voltage. Sensitivity of the galvanometer. What is a convenient way to increase its sensitivity?

Explain the principle of a venturimeter from Bernoulli's theorem.

What is the function of salt bridge?

What is principle of super position?

What is the principle employed in a mass spectrometer?

Why should the balance point be obtained in the middle of the wire of a metre bridge?