Question:
In a full wave rectifier, for an input ac voltage
In a full wave rectifier, for an input ac voltage
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Bridge rectifier does not require a centre-tapped transformer, but the centre-tap configuration does.
Updated On: Apr 24, 2026
- the output voltage appears across the load for positive cycle only
- both diodes conduct during positive cycle
- both diodes conduct during negative cycle
- one diode is always forward biased and the other is always reverse biased
- a centre tapped transformer is used
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Solution and Explanation
Step 1: Understanding the Concept:
A full-wave rectifier converts both halves of AC cycle to DC. Two types: centre-tap and bridge.
Step 2: Detailed Explanation:
In a centre-tap full-wave rectifier, a centre-tapped transformer is essential. For positive cycle, one diode conducts; for negative cycle, the other conducts.
(A) Incorrect: Output appears for both cycles.
(B) & (C) Incorrect: Only one diode conducts per half-cycle.
(D) Incorrect: Diodes alternate being forward/reverse biased.
(E) Correct: A centre-tapped transformer is a key component.
Step 3: Final Answer:
A full wave rectifier uses a centre tapped transformer.
A full-wave rectifier converts both halves of AC cycle to DC. Two types: centre-tap and bridge.
Step 2: Detailed Explanation:
In a centre-tap full-wave rectifier, a centre-tapped transformer is essential. For positive cycle, one diode conducts; for negative cycle, the other conducts.
(A) Incorrect: Output appears for both cycles.
(B) & (C) Incorrect: Only one diode conducts per half-cycle.
(D) Incorrect: Diodes alternate being forward/reverse biased.
(E) Correct: A centre-tapped transformer is a key component.
Step 3: Final Answer:
A full wave rectifier uses a centre tapped transformer.
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