A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of 50 rad s^$-$1 in a uniform horizontal magnetic field of 3.0 $\times$ 10^$-$2 T. The maximum emf induced the coil will be ................. $\times$ 10^$-$2 volt (rounded off to the nearest integer)