ELECTRONIC DEVICES & CIRCUITSDEVENDRA VISHWAKARMA
Electronic Devices is the only topic filled with vast formulas to remember in various contexts,be it current density,carrier concentration,pn junction,MOS capacitor,BJTs,photodiodes etc.The best way to prepare for this is to be clear with the concepts of each topic first and then prepare formula book topic wise.In GATE,it carries around 8 marks (3-4 questions) every year.
2. Integrated electronics milman halkias
3.Electronic Devices and circuit theory,Robert Boylestad
4. Donald Neamen ,Semiconductor physics and devices.
Online Materials :
1.ACE class notes
2.Made Easy Classnotes
3.ACE printed booklet
4.Previous Gate problems