If the radiant energy from the Sun comes in as a plane EM wave of intensity 1 340 W/m²,calculate the peak values of E and B.(µ₀ = 4π × 10−⁷ T⋅m/A,c = 3.00×10⁸ m/s) A) 330 V/m,3.0 × 10−⁴ T B) 1 010 V/m,3.35 × 10−⁶ T C) 330 V/m,3.35 × 10−⁶ T D) 1 010 V/m,3.0 × 10−⁴ T

Question

Quizplus · Accepted Answer

The peak values of E and B can be calculated using the following formulas:

E_peak = (2I/ε0c)^1/2 
B_peak = (2I/μ0c^2)^1/2

where I is the intensity of the EM wave, ε0 and μ0 are the permittivity and permeability of free space respectively, and c is the speed of light.

Substituting the given values, we get:

E_peak = (2 x 1340/ (8.85 x 10^-12 x 3 x 10^8))^1/2 = 1010 V/m 
B_peak = (2 x 1340/ (4 x π x 10^-7 x (3 x 10^8)^2))^1/2 = 3.35 x 10^-16 T

Therefore, the correct answer is B.

If the Radiant Energy from the Sun Comes in as a Plane