BOOKS LINK S. Chand s Principles Of Physics For XI S. Chand s Principle Of Physics -XII S.Chand’S Mathematics For Class XI S.Chand’s Mathematics -XII (Vol-I) S.Chand S Biology For Class XI – CBSE S.Chand S Biology -XII – CBSE Conceptual Chemistry Volume I For Class XI: For Class 11 Conceptual Chemistry Volume-I For Class XII Post navigation OPERATIONAL AMPLIFIERS – (OP-AMP)APPLICATION AND USES OF ULN2001A , ULN2002A , ULN2003A , ULN2004A IC