Question

In which case we should use `I=I_0sinomegat` and `I_(rms)=I_0/sqrt2` and what is the difference between this two Current for two different equation? Two equations are related to alternating current.

Answer 1

`I_(rms)` gives the root-mean-squared value for the current, which is the current needed for AC to be equivalent to DC. `I_0` represents the peak current from AC, and `I_0` is the AC equivalent of the DC current.

`I` in `I=I_0sinomegat` gives you the current at a particular point in time for an AC supply, `I_0` is the peak voltage and `omega` is the radial frequency `(omega=2pif=(2pi)/T)`