Question 201: EM waves

Question

In an electromagnetic wave in free space that root mean square value of the electric field is Erms = 6 V m$$-$$1. The peak value of the magnetic field is

Accepted Answer

The rms value of magnetic field
B
rms
= $${{{E_{rms}}} \over c}$$ = $${6 \over {\left( {3 	imes {{10}^8}} ight)}}$$ =  2 ÃÂ 10
Ã¢ÂÂ 8
T
Now peak value of magnetic field
B
peak
= $$\sqrt 2 {B_{rms}}$$ = 2.83 $$ 	imes $$ 10
$$-$$8
T

Answer

2.83 $$ 	imes $$ 10$$-$$8 T

Answer

0.70 $$ 	imes $$ 10$$-$$8 T

Answer

4.23 $$ 	imes $$ 10$$-$$8 T

Answer

1.41 $$ 	imes $$ 10$$-$$8 T

EM waves

In an electromagnetic wave in free space that root mean square value of the electric field is Erms = 6 V m$-$1. The peak value of the magnetic field is

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