State and explain Ohm.s law and hence defined one ohm.

Ohm's law fails in

Ohm.s law in vector form is :

State and explain the laws of radioactive disintergration. Hence define disintergration constant and half life peroid. Establish relation between them.

State and explain the second law of thermodynamics.

State and explain Boyle's law. Represent the law graphically.

State Ohm' law and deduce it from the knowledge of drift velocity of free electrons in a conductor carrying current.

State Ohm's law. How can it be verified experimentally ? Explain with the help of a circuit diagram. Express the result graphically.

All resistance in the diagram are in ohm Find the effective resistance (in ohm) between the points A and B

State and explain the pressure-temperature law.

State the physical condition in which Ohm.s law is not valid for a conductor.