The rms voltage is given by the following.
ΔVrms = ΔVmax√2 = 0.707ΔVmax

Substituting the maximum voltage, we obtain
ΔVrms = ΔVmax/√2 = 0.707ΔVmax = 0.707(165 V) = 117 V.

An rms voltage of
117 v corresponds to a maximum voltage of 165 V.


What is the maximum current Imax in the resistor?