Current Attempt in Progress

A $81-$turn circular coil $($radius $=39cm)$ with a total resistance of $5\mathrm{.}2$ is placed in a uniform magnetic field directed perpendicular to the plane of the coil. The magnitude of this field varies with time according to $B=$Asin$(t),$ where the amplitude is $A=110T$ and the angular frequency is $=69ra\frac{d}{s}.$ What is the magnitude of the current $($in mA $)$ induced in the coil at $t=21ms?$

Number

Units