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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
4 years ago
Dear student 
The equation od AC current will be 
I = I0 Sin(wt+Q)
Here I0 = 50 A 
f = 50 Hz 
w = 100*pie
I = 50 Sin(100*pie t + Q ) 
This will be the equation of current.
Good Luck 
Cheers 
Arun
25750 Points
4 years 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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