Write the equation of a current sine wave, Physics

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Q. Write the equation of a 25 cycle current sine wave having rms value of 30 A.

Data:               ν = 25 Hz, Irms = 30 A

Solution:         i = Io sin ωt

  = Irms √2 sin 2πνt

i = 30 √2 sin2π × 25 t = 42.42 sin 157 t


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