a long horizontal wire AB, which is free to move in a vertical plane and carries a steady current of 20A, is in equilibrium a a hoeght of 0.01m over another parallel long wire CD which is fixed in ahorizontal plane and carries a current of 30 A. show that when AB is slightly depressed , it executes SHM.

Dear Somy,

T= 2pi * sqrt(h/g)

Cracking IIT just got more exciting,It s not just all about getting assistance from IITians, alongside Target Achievement and Rewards play an important role. ASKIITIANS has it all for you, wherein you get assistance only from IITians for your preparation and win by answering queries in the discussion forums. 

http://www.askiitians.com/packages/packages.aspx

So start the brain storming…. become a leader with Elite Expert League ASKIITIANS

Thanks

Aman Bansal

Askiitian Expert