1. A full wave rectifier circuit consists of two p-n junction diodes, a centre-tapped transformer, capacitor and a load resistance. Which of these components remove the ac ripple from the rectified output? ⇒ (NEET 2023)

A. p-n junction diodes

B. Capacitor

C. Load resistance

D. A centre-tapped transformer

The Correct Answer is (B)

Capacitor used to remove AC ripples from Rectifier output.

2. In half wave rectification, if the input frequency is 60 Hz, then the output frequency would be ⇒ (NEET 2022 Phase 1)

A. Zero

B. 30 Hz

C. 60 Hz

D. 120 Hz

The Correct Answer is (C)

In half wave rectifier, the output frequency is same as that of input frequency.

3. The peak voltage in the output of a half wave diode rectifier fed with a sinusoidal signal without filter is 10 V. The d.c. component of the output voltage is ⇒ (AIPMT 2005)

A. (10/ $\sqrt{2}$ ) V

B. $(\frac{10}{π}) V$

C. 10 V

D. (20/ $π$ ) V

The Correct Answer is Option (B)

V = $\frac{V_{0}}{π}$ $\Rightarrow$ V = $(\frac{10}{π}) V$

4. If a full wave rectifier circuit is operating from 50 Hz mains, the fundamental frequency in the ripple will be ⇒ (AIPMT 2003)

A. 25 Hz

B. 50 Hz

C. 70.7 Hz

D. 100 Hz

The Correct Answer is Option (D)

In full wave rectifier the fundamental frequency in ripple is twice of input frequency.

⇒ Semiconductor

Topic 4 : Rectifier Circuits