Define photo diode

Distinguish between the light emitting diode and photo diode.

With what consideration in view,a photo diode is fabricated ?

The symbol of a diode is show in the figure (a) the diode is a _________rectifier diode / photo diode / zener diode (b) draw the VI characteristics of above diode (c ) a zener diode with V_(z)=6.0 V is sued for voltage regulation if the unregulated input is 10.0 V what is the value of series resistor R (d) what is the fundamental frequency of the ripple in a full wave rectifier cirucit operating from 50 Hz mains

The current in the forward bias is known to be more (mA) than the current in the reverse bias ( ~ mu A). What is the reason, then why photo diodes is to operate in reverse bias.

The current in the forward bias is unknown to be more (~mA) than the current in the reverse bias ( ~muA ). What is the reason then to operate the photo diodes in reverse bias ?

Explain the working of a photo diode.

What is photo diode? Draw the symbol and state uses.

what is photo diode? Mention its one use.