Full Wave Rectifier Questions

Rectifiers are the components that convert AC to DC. Half Wave Rectifiers and Full Wave Rectifiers are the two types of rectifiers.

A full-wave rectifier is a rectifier that converts the complete cycle of AC into pulsating DC. The full wave rectifier circuit features two diodes that are connected and centre tapped and a step-down transformer.

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Important Full Wave Rectifier Questions with Answers

1. The form factor of a full-wave rectifier is given as ______

1. 0.5
2. 2.2
3. 1.11
4. 3.14

Answer: c) 1.11

Explanation: The form factor of the full wave rectifier is 1.11.

2. What are the types of full wave rectifiers?

Full wave rectifiers are classified as:

• Centre-tapped Full Wave Rectifier
• Full Wave Bridge Rectifier

3. What does a centre tap full wave rectifier circuit consist of?

It features a load resistance, two diodes, and a centre-tapped transformer.

4. Choose YES or NO: Can a full wave rectifier be built using 4 diodes arranged as a bridge along with a standard transformer?

1. YES
2. NO

Answer: a) YES

Explanation: Using a standard transformer along with four diodes placed in the form of a bridge a full wave rectifier can be constructed.

5. The efficiency of the full wave rectifiers is _______

1. 100%
2. 22.24%
3. 81.2%.
4. 74.2%

Answer: c) 81.2%.

Explanation: The full wave rectifier offers an efficiency of 81.2%.

6. Which type of rectifier is used in electric welding?

1. Half wave rectifier
2. Full wave rectifier

Answer: b) Full wave rectifier

Explanation: A full wave rectifier is used for the purpose of electrical welding.

7. What are the five uses of a rectifier?

Five uses of rectifier are:

1. The rectifier is used in soldering.
2. It is used in voltage multiplier.
3. Rectifier plays a major role in powering appliances.
4. They are used along with transformers.
5. A rectifier is used for the purpose of modulation.

8. What is the formula to calculate the ripple factor for a full-wave rectifier?

The ripple factor for a full-wave rectifier is given by the formula:

9. How many diodes are used in a full wave rectifier?

1. 2
2. 3
3. 4
4. Option a) and c)

Answer: d) Option a) and c)

Explanation: In a full wave rectifier, 2 or 4 diodes are used depending on the type of circuit.

10. Which among the following has a high ripple factor?

1. Half wave rectifier
2. Full wave rectifier

Answer: a) Half wave rectifier

Explanation: The ripple factor of the half wave rectifier is higher than the full wave rectifier.

Practice Questions

1. What is a rectifier?
2. What is a bridge rectifier?
3. What is the formula to calculate the DC Output Voltage of a full wave rectifier?
4. Explain the two-diodes full-wave rectifier circuit.
5. List the advantages and disadvantages of a half wave rectifier and a full wave rectifier.