What is the magnetic field (B) at a particular point in free space...

What is the magnetic field (B) at a particular point in free space and time where an electromagnetic wave with a frequency of 25 MHz travels along the x-direction, and the electric field (E) at that point is 6.3

\hat{j}

V/m?

Options

A1.4 × 10^–9 $\hat{i}$ T
B2.1 × 10^–8 $\hat{k}$ T
C3.5 × 10^–8 $\hat{j}$ T
D4.2 × 10^–7 $\hat{k}$ T

Correct answer

B. 2.1 × 10^–8 $\hat{k}$ T

Step-by-step solution

Correct Option is : (B)
2.1 × 10^–8

\hat{k}

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