what is polarity?explain in brief
I think you are asking about electrical polarity. If that's the case then,
Electrical polarity is present in every electrical circuit. Electrons flow from negative pole to positive pole. In a direct current, one pole is always positive and the electrons flow in one direction only. In alternating current circuit, the two poles alternate between negative and positive and the direction of the flow continually reverses.
Preparing for JEE?
Kickstart your preparation with new improved study material - Books & Online Test Series for JEE 2014/ 2015
@ INR 5,443/-
For Quick Info
Find Posts by Topics