A radio transmitter transmits at 830 kHz . At a certain distance from the transmitter magnetic field has amplitude 4.82 × 1 0 − 11 T . The electric field and the wavelength are respectively

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Frequency of EM wave v = 830 KHz = 830 × 1 0 3 Hz . Magnetic field, B = 4.82 × 1 0 − 11 T As we know, frequency, v = λ c ​ or λ λ And, E ​ = v c ​ = 830 × 1 0 3 3 × 1 0 8 ​ ≃ 360 m = BC = 4.82 × 1 0 − 11 × 3 × 1 0 8 = 0.014 N / C ​

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