Monday, March 29, 2010

Mystery of Ohms law

According, to ohms law V proportional I but, practically it not applicable. Why??

Ans: The main condition for ohms law is that the temperature should be constant. But, practically when current passes through a wire the temperature around the wire doesn’t be constant. That’s the main reason why ohms law is practically not applicable.

OHMS LAW:- UNDER CONSTANT TEMPERATURE, VOLTAGE IS PROPORTIONAL TO CURRENT.

No comments:

Post a Comment