The rectifier efficiency of a half-wave rectifier is ______________ if the input power to the rectifier is 150 W and output power is 50 W. 

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SSC JE Electrical 14 Nov 2022 Shift 3 Official Paper
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  1. 66.66%
  2. 33.33%
  3. 100%
  4. 300%

Answer (Detailed Solution Below)

Option 2 : 33.33%
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Detailed Solution

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Concept 

The rectifier efficiency is given by:

% η = \({P_{out}\over P_{in}}\times 100\)

Pout = Output power

Pin = Input power

Calculation

Given, Pout = 50 W

Pin = 150 W

% η = \({50\over 150}\)

% η = 33.33%

Additional Information

  • The maximum rectifier efficiency of a half-wave rectifier is 40.6%
  • The maximum rectifier efficiency of a full-wave rectifier is 81.6%
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