Explanation:
The general equation of an AC current is given by :
[tex]I=I_o sin\omega t[/tex]
Where
I₀ is the peak value of current
[tex]\omega[/tex] is angular frequency
[tex]As\ \omega=2\pi f[/tex]
So,
[tex]f=\dfrac{\omega}{2\pi}\\\\f=\dfrac{100\pi}{2\pi}\\\\f=50\ Hz[/tex]
We know that,
[tex]I_{rms}=\dfrac{I_0}{\sqrt{2}}\\\\=\dfrac{20}{\sqrt{2}}\\\\I_{rms}=14.14\ A[/tex]
So, the frequency is 50 Hz and the maximum rms value of current is 14.14 A.
