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 $x \times 10^{-8}$ T. The value of x is _____
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Solution
|B| = |E| / C = 6 / (3 × 10⁸) = 2 × 10⁻⁸ T
∴ x = 2
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