Electric Field Wave Equation
The wave equation for the electric field E in a vacuum is expressed as ∇²E - (1/c²)∂²E/∂t² = 0. What physical phenomenon is represented by the term (1/c²)∂²E/∂t²?
A
Electric field due to static charges
B
Temporal variation of the electric field
C
Spatial variation of the electric field
D
Electric field due to steady currents
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