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An AC current with 50hz following sine law has arms value of 50 A. Write down the equation for instantaneous value calculate the instantaneous current 0.0025 s passing through positive maximum value.

An AC current with 50hz following sine law has arms value of 50 A. Write down the equation for instantaneous value calculate the instantaneous current 0.0025 s passing through positive maximum value.

Grade:7

2 Answers

Vikas TU
14149 Points
one year ago
Arun
25763 Points
one year ago
f = 50 Hz I = I base 0 Sin Wt Peak value I = I base 0/√2 I base 0/√2 = I base 0 Sin Wt ⇒ I base 0/√2 Sin Wt = Sin π/4 ⇒ π/4 = Wt. or, t = π/400 = π/4 * 2πf = 1/8f = 1/8 * 50 = 0.0025 s = 2.5 ms

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