An electronic circuit which converts alternating voltage into unidirectional pulsating voltage is called

A pn junction exhibits rectifying property because of

A full-wave rectifier uses a grounded centre tap on the secondary winding of a transformer and a 60 Hz source voltage across the primary winding. The output frequency of the fullwave rectifier is

Avalanche breakdown in a Zener diode takes place due to

A Zener diode is used as a

In operation, a photodiode is

The photocurrent in a photodiode is a few

A photodiode is used in

When the load resistance across a solar cell is zero, the current in the external circuit passed by the solar cell is called

The colour of light emitted by an LED depends upon