Question

If the magnetic field in a plane electromagnetic wave is given by vector B = 3 x 10^-8 sin(1.6 x 10³x + 48 x 10¹⁰ t)j vector T, then what will be expression for electric field? 

1. E˙ = 3 × 10⁻⁸sin(1.6 × 10³x + 48 × 10¹⁰t)ˆi V/m
2.  E˙ = 3 × 10⁻⁸sin(1.6 × 10³x + 48 × 10¹⁰t)ˆj V/m
3.  E˙ = 60 sin(1.6 × 10³x + 48 × 10¹⁰t)kˆ V/m
4.  E˙ = 9 sin(1.6 × 10³x + 48 × 10¹⁰t)kˆ V/m