An AC circuit operates at $2\mathrm{.}5.$ A peak current and a frequency of $60$ Hz$.$ What is true about the rms current of this circuit? The rms current is exactly $2\mathrm{.}5$ A$.$ The rms current is exactly O A$.$ The rms current is less than $2\mathrm{.}5$ A$,$ but more than zero. The rms current is more than $2\mathrm{.}5$ A$.$