I am just wondering what is the proof of the equation
2*pi*f = 1/√(LC)
Welcome to PF;
The relation is derived from the differential equation describing the flow of charge in an ideal RCL circuit.
So what is the differential equation describing the flow of charge in an ideal RCL circuit?
I think this link is what you need.
I was going to suggest this one - but that works too. :)
The resonant frequency is when XL = Xc
That is when 2∏fL = 1/2∏fC
When this condition is satisfied V is in phase with I.
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