State biot -savart's law and explain it.

Give the mathematical statement of Biot-Savart law and explain the different terms.

State Biot-Savart's law. Then using this law derive an expression for magnetic field intensity due to a circular coil at a point on its centre.

Explain Biot-Savart law.

State and explain Ohm's law:

State the Law of mass action and explain any two significance of equilibrium constant.

State Ohm's law. Derive or explain it, using drift velocity concept.

State and explain Raoult's law.