Question

What is the amplitude of the magnetic field B in an electromagnetic wave that has the amplitude of the electric field of E= 1000 V/m ? Define the speed of light in vacuum as C. Note that C= E/ B. Assume that this electromagnetic wave propagates in vacuum. The amplitude of the magnetic field B is: OA. 1.50 x 10 (T); OB.3.33 x 10-6 m); 0.6.67 x 10-5 (T); Op. 1.50 x 10-5 (T); E. 2.50 x 10-5 (1).

Answer 1

c = E/B

B = E/c

B = 1000/(3x10⁸)

B = 3.33x10^-6 Tesla

Amplitude of magnetic field = 3.33x10^-6 Tesla