Why do we use only Sinusoidal Wave in AC supply why not the
Square,Triangle or Sawtooth etc?

Answer Posted / a.n.v.kartik

In Maths differentiation of sin is cos and for cos in minus
sin.double differentiative of sin is minus sin.so from this
we can infer that the same function is repeating after two
differentiation.so when one asks about AC supply v ll draw
sinusoidal waveform...if v use sin function the calculations
will be easy...this is the reason....

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