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प्रश्न
What is pulsating DC?
विकल्प
A perfectly steady DC output
An output that flows in opposite directions during successive half cycles
An AC source used through a transformer
An output that flows in one direction but whose magnitude changes with time
MCQ
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उत्तर
Pulsating DC flows in one direction. Its magnitude still changes with time, so it is not perfectly steady DC.
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