A 480-cm-diameter circular loop is rotated in a uniform

Question

Problem: A 48.0-cm-diameter circular loop is rotated in a uniform electric field until the position of maximum electric flux is found. The flux in this position is measured to be 5.02 x 10⁵ Nm²/C.

Part A: What is the magnitude of the electric field?

_________ MN/C

I need help to determine the magnitude of the electric field.