The charge on a capacitor in a circuit is found to vary as a function of time as `Q(t) = Kcos(ωt – φ). What is the current through the capacitor (or, if you are picky, current through the wires connecting the capacitor) as a function of time? Let positive value of current be the flow of charge that increases the charge separation on the capacitor in the original direction.
Give your answer in terms of 'omega', K, 'phi', and t.