Question

energy = flux × area × time

explain the formula...
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Answer 1

Explanation:

Energy flux is the rate of transfer of energy through a surface. ... Specific rate of energy transfer (total normalized per unit area); SI units: W⋅m−2 = J⋅m−2⋅s−1: This is a vector quantity, its components being determined in terms of the normal (perpendicular) direction to the surface of measurement.

Answer 2

The energy per unit area per unit time passing through a plane perpendicular to the wave, called the energy flux and denoted by S, can be calculated by dividing the energy by the area A and the time interval Δt. S=Energy passing areaAin timeΔtAΔt=uc=ε0cE2=1μ0EB.