David B 13086 posts 1 comments

A initially learned photography as a kid shooting black & white then developing the photos in a dark room, that was a magical time and sparked my interest in photography. As I got older I dabbled in digital photography but wasn't until my kids were born that i really started to get an active interest back in it all.

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16 Comments
  1. Punita Kulhari says

    Is it positive charge or hole!!!!!!! ¿ ¿ ¿

    Reply
  2. AKASH YADAV says

    THANK YOU SO MUCH SIR. MAY YOU LIVE LONG. I was really confused as to why photodiodes are used in reverse bias but you made the concept really clear.

    Reply
  3. sreyashree pal says

    Thank…u sir .. it's totally clear fr me…🙂🙂

    Reply
  4. nikhil verma says

    Very good sir
    sir i want to know much about the electronic devices mainly optoelecronic , what kind parametrs required to fabricate a device for a given material

    Reply
  5. Phani Pradyumna says

    Simply beautiful sir

    Reply
  6. Roshan Ambhore says

    sir where you conduct a engineering classes

    Reply
  7. raviteja komarelli says

    tq very much sir…it is very nice explanation

    Reply
  8. mayank namdev says

    sir why dont u use a nice camera …. ur videos r great ….loving itt !

    Reply
  9. Chiranjeet Singh says

    Thank you sir, you the one who solved this doubt in this world; after a lot of tries!

    Reply
  10. Jayaram Kollipara says

    Thank You Sir ! , I'm a student of Telecommunications Engineering at Politechnico Di Milano Italy

    Reply
  11. krishan kumar says

    Nice video sir

    Reply
  12. priya ganga says

    good explanation 😃😃😃

    Reply
  13. Rifat Ullah says

    That was very helpful thank you

    Reply
  14. Sohail Abbas says

    too much useful. thank you

    Reply
  15. jagadish s v says

    Nice

    Reply
  16. rangoju bittu says

    Its good lecture sir.nice

    Reply
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