An AC source which provides a voltage difference of

$$V $=(2\mathrm{.}05$ V$)$cos$[2(60$ Hz$)$t$]$

is connected in a single loop circuit to a $5\mathrm{.}10$ resistor.

$($a$)$ What is

$$Vrms

for this source?

V

$($b$)$ What is the magnitude of the maximum current through the resistor at any time?

Maximum voltage and maximum current obey Ohm's law. A

$($c$)$ What is

Irms?