Test: Diode Circuits - 1 - Electrical Engineering (EE) MCQ

# Test: Diode Circuits - 1 - Electrical Engineering (EE) MCQ

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## 10 Questions MCQ Test GATE Electrical Engineering (EE) Mock Test Series 2025 - Test: Diode Circuits - 1

Test: Diode Circuits - 1 for Electrical Engineering (EE) 2024 is part of GATE Electrical Engineering (EE) Mock Test Series 2025 preparation. The Test: Diode Circuits - 1 questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Diode Circuits - 1 MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Diode Circuits - 1 below.
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Test: Diode Circuits - 1 - Question 1

### The theoretical maximum efficiency of a bridge rectifier circuit is

Detailed Solution for Test: Diode Circuits - 1 - Question 1

For a bridge rectifier circuit,

For ideal diode,

and hence maximum efficiency, η = 81.06%.

Test: Diode Circuits - 1 - Question 2

### Ripple factor of a full-wave rectifier without filter will be

Test: Diode Circuits - 1 - Question 3

### A full wave rectifier delivers 50 W to a load of 200 Ω. If the ripple factor is 1%, the AC ripple voltage-across the load is

Detailed Solution for Test: Diode Circuits - 1 - Question 3

DC power delivered to the load is

∴
The ripple factor,

or
Therefore, the AC ripple voltage across the load,
VAC = 1 volt

Test: Diode Circuits - 1 - Question 4

A half wave rectifier is used to supply 24 V DC to a resistive load of 500 Ω and the diode has a forward resistance of 50 Ω. What is the maximum value of the AC voltage required at the input?

Detailed Solution for Test: Diode Circuits - 1 - Question 4

Therefore, maximum AC voltage required at the input is

Test: Diode Circuits - 1 - Question 5

What is the value of inductance to be used in the inductor filter connected to a full-wave rectifier operation at 60 Hz to provide a DC output with 4% ripple for a 100 Ω load?

Detailed Solution for Test: Diode Circuits - 1 - Question 5

The ripple factor for an inductor filter is

∴
or

Test: Diode Circuits - 1 - Question 6

Diodes are used to clip voltages in circuits because they act as

Test: Diode Circuits - 1 - Question 7

When a capacitor is connected across the output terminals of a half or full-wave rectifier, the output voltage

Test: Diode Circuits - 1 - Question 8

The equivalent DC output voltage of a full-wave rectifier is ____ the equivalent DC output voltage of a half-wave rectifier.

Detailed Solution for Test: Diode Circuits - 1 - Question 8

Test: Diode Circuits - 1 - Question 9

Assertion (A): A high value of resistor is connected across the diode in a clamper circuit for better performance.
Reason (R): If this resistor is not present, the circuit will respond to sudden decrease in the magnitude of the input pulse train, but the response to sudden increase in the amplitude will cause improper response.

Test: Diode Circuits - 1 - Question 10

Assertion (A): Bridge arrangement is preferred over centre-tapped transformer arrangement for full-wave rectification.
Reason (R): The bridge arrangement improves the filtering action.

Detailed Solution for Test: Diode Circuits - 1 - Question 10

No filtering action is provided by bridge arrangement. Hence, reason is a false statement.

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