A point charge causes an electric flux of 260 N m2/C to pass through a spherical Gaussian surface of 20.0 cm radius centered on the charge.

A point charge causes an electric flux of −260 N · m2/C to pass through a spherical Gaussian surface of 20.0 cm radius centered on the charge.

(a) If the radius of the Gaussian surface were doubled, how much flux would pass through the surface?

(b) What is the value of the point charge?

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