Question

How is a surface handled when calculating flux through a non-uniform magnetic field or a curved surface?

Options

• Treat the entire surface as one plane surface

• Use the number of turns of a coil as the area

• Set the net magnetic flux to zero

• Divide the surface into very small area elements \[d\vec A\]

Answer 1

A non-uniform field or curved surface cannot generally be handled with one field-and-area dot product. The surface is divided into very small area elements \[d\vec A\].