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Alternating Current and Voltage - Technical MCQs

Q1:

What is the instantaneous peak voltage at 250° on a 6 V peak sine wave?

A +5.64 V

B –5.64 V

C +26.13 V

D –26.13 V

ANS:B - –5.64 V

Formula = Io sin2^ft.
F = 250/2.
= 6sin 250,
= 5.638 = -5.64,