In capacitive circuit, the voltage and current are out of phase. the current leads the voltage by 90 degrees. this can be explained by these two equations:
V=Vmax
I = I_{\max} \cos \omega t.
Now, my question is that what does this statement mean physically that "current leads the voltage by 90 degrees? It is clear mathematically that if V = 0 then I is maximum but how do we explain this physically? hope you understood my question
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