Question

Identify the special purpose diodes 'A', 'B' and 'C' from the given symbols.

Options

• A-LED, B- Zener diode, C- Photocell

• A - solar cell, B - Zener diode, C-LED

• A - Zener diode. B-LED, C- Photocell

• A - Zener diode, B - Photocell, C-LED

Answer 1

A - Zener diode, B - Photocell, C-LED

Explanation:

A: The bent line at the cathode → Zener diode

B: Arrows pointing towards the diode → Photocell / Photodiode (receives light)

C: Arrows pointing away from the diode → LED (emits light)