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10(b) In a plane electromagnetic wave, the electric field oscillates sinusoidally at a frequency of $2.0 \times 10 ^{10} Hz$ and amplitude $48 V m^{-1}$ .

What is the amplitude of the oscillating magnetic field?

Answers (1)

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The amplitude of the oscillating magnetic field(B₀) = $\frac{E_{0}}{c}$

$=$ $\frac{48}{3\times 10^{8}}$

$=160 nT$

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