11:30

Transistor working | Class 12 (India) | Physics | Khan Academy

12:45

Zener diode & Zener breakdown | Class 12 (India) | Physics | Khan Academy

11:10

Zener Diodes

6:51

Transistor as a switch | Class 12 (India) | Physics | Khan Academy

9:04

LED - color & fabrication | Semiconductors | Physics | Khan Academy

8:03

Full wave rectifiers | Class 12 (India) | Physics | Khan Academy

7:21

Input characteristics of NPN transistor | Class 12 (India) | Physics | Khan Academy

11:40

Photodiodes - (working & why it's reverse biased) | Semiconductors | Physics | Khan Academy