What is the maximum value of the electric field in an electromagnetic wave whose average intensity is 6.00 W/m2?
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The intensity of an electromagnetic wave is 40 W/m2. What will the intensity be if:
a. The amplitude of the electric field is doubled?
b. The amplitude of the magnetic field is doubled?
c. The amplitudes of both the electric and the magnetic fields are doubled?
An electromagnetic wave has an electric field amplitude of 322 V/m. (a) What is the maximum magnitude of the Poynting vector of this wave? (b) What is the average magnitude of the Poynting vector? (c) What is the intensity of the wave? (d) What is the root mean square of the electric field of the wave?