A circular loop of radius 0.3 cm lies parallel to a much bigger circular loop of radius 20 cm.

A circular loop of radius $0.3 \mathrm{~cm}$ lies parallel to a much bigger circular loop of radius $20 \mathrm{~cm}$. The centre of the small loop is on the axis of the bigger loop. The distance between their centres is 15 $\mathrm{cm}$. If a current of $2.0$ A flows through the smaller loop, then the flux linked with bigger loop is :-