Question

In an electromagnetic wave

• A. Power is equally transferred along the electric and magnetic fields
• B. Power is transmitted in a direction perpendicular to both the fields
• C. Power is transmitted along electric field
• D. Power is transmitted along magnetic field

Answer 1

Answer: (B)

Power is transmitted in a direction perpendicular to both the fields

Power transmitted in an electromagnetic wave in the direction of propagation of the wave which is given the cross product of both magnetic and electric field. Hence the power transmitted is in direction perpendicular to both fields.