The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT . The peak value of electric field strength is

Question

The magnetic field in a travelling electromagnetic wave has a peak value of 20 nT . The peak value of electric field strength is, 3 V m - 1, 6 V m - 1, 9 V m - 1, 12 V m - 1

MARKS App · Accepted Answer

From question, B 0 = 20 nT = 20 × 10 − 9 T E 0 = B 0 C E 0 = 20 × 10 − 9 × 3 × 10 8 = 6 V m - 1 . ( ∵ velocity of light in vacuum C = 3 × 10 8 m s − 1 )

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