In a travelling plane electromagnetic wave the maximum magnetic field is $$1.26$$×$$10$$−$$4T$$. The intensity of the wave is (Assume$$ μ$$0=1.26$$×$$10$$−$$6H/m)

Correct option is 31.89×106W/m2

Questions

In a travelling plane electromagnetic wave the maximum magnetic field is $1.26 \times 10^{- 4} T$ . The intensity of the wave is (Assume $μ_{0} = 1.26 \times 10^{- 6} H / m$ )

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1.56×106W/m2

8.92×106W/m2

1.89×106W/m2

4.62×106W/m2

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detailed solution

Correct option is C

Intensity of electromagnetic wave in terms of magnetic field is I=12B02μ0C (where B0 is peak value of magnetic field) I=12×1.26×10−4×1.26×10−41.26×10−6×3×108 I=1.89×106W/m2

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In a travelling plane electromagnetic wave the maximum magnetic field is 1.26×10−4T. The intensity of the wave is (Assume μ0=1.26×10−6H/m)

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In a travelling plane electromagnetic wave the maximum magnetic field is $1.26 \times 10^{- 4} T$ . The intensity of the wave is (Assume $μ_{0} = 1.26 \times 10^{- 6} H / m$ )