Non uniform electric flux Figure shows a circular region of radius R = 3.00 cm in which

Question:

Non uniform electric flux Figure shows a circular region of radius R = 3.00 cm in which an electric flux is directed out of the plane of the page. The flux encircled by a concentric circle of radius r is given by ? E, enc = (0.600 V ? m/s) (r/R) t, where r (a) 2.00 cm and(b) 5.00 cm