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2021-02-06 05:04:53
00:23:52
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candle academy pakistan
welcome to candle academy Pakistan.this is lecture 1 of chapter 17 electronics for class 12 Physics Federal board and all kpk boards. in this lecture intrinsic and extrinsic semiconductors are explained.
after completing this lecturer students will be able to explain the following.
01:16 what is electronics?
03:58 what is semiconductor?
06:53 what is intrinsic semiconductor?
08:00 two dimensional model of intrinsic semiconductor?
09:13 behaviour of intrinsic semiconductor at extremely low temperature.
11:27 behaviour of semiconductors at room temperature.
12:03 explain electron-hole pairs generation.
14:09 what is band gap energy?
15:01 what are the charge carriers in intrinsic semiconductors?
19:11 define doping.
20:43 what are extrinsic semiconductors?