asked in Electrical Engineering by
Define photo resistor. State its symbol and its two applications. 

Know someone who can answer this question ? Share this on Facebook, Twitter, Whatsapp

← Prev Question Next Question →

1 Answer

answered by
Definition: It is a type of semiconductor whose electrical resistance decreases as the intensity of incident light increases.

Applications: i) It is used for automatic lighting control. ii)It is used in the street light control. iii)It is used in photocopy machine to control density of toner. iv)It is used in security alarm. v)It is used in camera for Exposure meter.
Ask now - it's free
...