Question

Find the rms value of the saw tooth wave form shown in figure –

• A. 5
• B. 1.15
• C. 4
• D. None of these

Answer 1

Answer: (B)

1.15

Answer 2

Equation of straight line from t = 0 to t = 1

f (t) = 4 t – 2

f ² (t) = 16 t² – 16 t + 4

rms = $\sqrt{\frac{1}{T}\int_{0}^{T}{(16^{2} - 16t + 4)dt}}$