Based on the understanding operations of rectifies answer the questions Diodes can be used for rectifying on ac voltage (restricting the ac voltage to one direction) with the help of a capacitor or a suitable filter, a dc voltage ca be obtained.
Arrange the device in the process of conversion of alternating current to direct current in proper sequence.
(A) Filter
(B) Rectifier
(C) Amplifier
(D) Transformer
Choose the correct answer from the options given below :
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → D, B, A, C
In a dc power supply, the ac mains is first brought to the required level, then made one-directional, and then smoothed.
(D) Transformer — steps the ac mains voltage up or down to the value needed.
(B) Rectifier — the diodes allow current in one direction only, giving pulsating dc.
(A) Filter — a capacitor (or an LC filter) removes the ripple and gives a nearly steady dc.
(C) Amplifier — it plays no part in changing ac into dc; it can only work on the signal after the conversion, so it comes last.
The sequence is D, B, A, C. Every other option either puts the filter before the rectifier or places the amplifier inside the conversion chain.