In a plane electromagnetic wave the electric field oscillates sinusoidally at a frequency 3×1010Hz and amplitude 50 V/m. What is the amplitude of the oscillating magnetic fields?
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a
1.67×10−7T
b
0.67×10−2T
c
1.67×10−2T
d
0.67×10−5T
answer is A.
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Detailed Solution
Amplitude of oscillating magnetic field is Bo=EoCBo=503×108Bo=1.67×10−7T
In a plane electromagnetic wave the electric field oscillates sinusoidally at a frequency 3×1010Hz and amplitude 50 V/m. What is the amplitude of the oscillating magnetic fields?