#vector area

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One of the results of this problem is required for a later one on magnetic moments that I’d like to do.

Question: Vector Area. ([1] pr. 1.61)

The integral

\begin{equation}\label{eqn:vectorAreaGriffiths:20} \Ba = \int_S d\Ba, \end{equation}

is sometimes called the vector area of the surface \( S \).

(a)

Find the vector area of a…