The amplitude of the magnetic field part of ...

NCERT Class XII Chapter
Electromagnetic Waves
Questions With Solutions

Question : 7 of 15

Marks: +1, -0

The amplitude of the magnetic field part of a harmonic electromagnetic wave in vacuum is

B_0

= 510 nT. What is the amplitude of the electric field part of the wave?

Solution:

We know the relation,

\frac{E_0}{B_0}

= c

E_0

B_0c

= 510 ×

10^{-9}

× 3 ×

10^8

Peak value of electric field

E_0

= 1530 ×

10^{-1}

= 153 N

C^{-1}

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