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10/01/2022 1:06 pm
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A plane electromagnetic wave with frequency of 30 MHz travels in free space. At particular point in space and time, electric field is 6 V/m. The magnetic field at this point will be x × 10–8 T. The value of x is _____.
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10/01/2022 1:08 pm
|B| = \(\frac{|E|}{C}\) = \(\frac{6}{3 \times 10^8}\)
= 2 x 10–8 T
∴ x = 2