Question $4(4$pts$)$: A circular loop in the plane of a paper lies in a $0\mathrm{.}85$ T magnetic field pointing

into the paper. The loop's diameter changes from $20\mathrm{.}5$ cm to $6\mathrm{.}8$ cm in $0\mathrm{.}55$ s$.$ What is the

direction of the induced current? What$$s the magnitude of the average induced emf $($consider the

absolute value$)$