Consider a function \(\bar f = \frac{1}{{{r^2}}}\hat r\), where r is the distance from the origin and \(\hat r\) is the unit vector in the radial direction. The divergence of the function over a sphere of radius R, which includes the origin, is

Consider a function \(\bar f = \frac{1}{{{r^2}}}\hat r\), where r is t

1.	Consider a function \(\bar f = \frac{1}{{{r^2}}}\hat r\), where r is the distance from the origin and \(\hat r\) is the unit vector in the radial direction. The divergence of the function over a sphere of radius R, which includes the origin, is
A.	0
B.	2π
C.	4π
D.	Rπ
Answer» B. 2π

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Consider a function \(\bar f = \frac{1}{{{r^2}}}\hat r\), where r is the distance from the origin and \(\hat r\) is the unit vector in the radial direction. The divergence of the function over a sphere of radius R, which includes the origin, is

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