Concept explainers
(a)
To show: The force on one plate can be accounted for by thinking of the electrical field between the plates as exerting a negative pressure equal to the energy density of the electric field.
(b)
The force per area acting on one sheet due to the magnetic field.
(c)
The net magnetic field between the sheets and the field outside of the volume between them.
(d)
The energy density in the magnetic field between the sheets.
(e)
To show: The force on one sheet can be accounted for by thinking of the magnetic field between the sheets as exerting a positive pressure equal to its energy density.
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