An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.72 ×...

Question

Question

An electromagnetic wave in a vacuum has a magnetic field with a magnitude of 1.72 × 10-6 T. What is the intensity S of the wave?

Answer 1

Answer #1

Relation between magnetic field B,and magnetic field strength or intensity S is given by

B=(4π*10^-7)*S where constant 4π*10^-7 is permeability of vacuum.

Or, S=1.36 A/m (Answer)

Answer 2

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