1.) At resonance, the phase angle in an a.c circuit is? Why?
2.) A progressive wave is represented by y = 10 sin [1000πt - (πx/34)]. Two layers of the wave, separated by 153cm have a phase difference of:
(A) 270° (B) 45° (C) 90° (D) 180°
Why??
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Asked by T.T on 30th December, 2019
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