Question

The output form of a full-wave rectifier is (1) an AC voltage (2) a DC voltage (3) zero (4) a pulsating unidirectional voltage

Answer 1

Answer:

alternating current in the pulse manner,

but actually not in unidirection

so answer is (a).

Answer 2

(4) a pulsating voltage is the output form of a full-wave rectifier.

Rectifier: A device used to convert oscillating AC wave into unidirectional DC wave.

Rectifiers are mainly of two types:

• Half-wave rectifier: This type of rectifier converts only half-wave of the AC. It used only a single diode.
• Full-wave rectifier: This type of rectifier converts full-wave of the AC. It used two diodes.

Principle of Rectifier:

• During the positive cycle, the diode D1 is forward biased and the diode D2 is reverse biased.

• During the negative cycle, the diode D1 is reverse biased and the diode D2 is forward biased.

• This allows the whole AC wave to be converted into DC wave.

Capacitors and Inductors are also added to rectifiers to improve fluctuating waves.