Alternating Current vs Direct Current

Q1: What is the waveform period of a square wave signal that horizontally covers 3 major divisions per cycle? (time/cm = 50 ms)

A 50 ms

B 100 ms

C 150 ms

D 200 ms

ANS:C - 150 ms

Each division carries 50ms, there are 3 divisions so 3*50ms=150ms.



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