Question 143: EM waves

Question

If the magnetic field of a plane electromagnetic wave is given by (the speed of light = 3 × 10
8
B = 100 × 10
–6
sin $$\left[ {2\pi  	imes 2 	imes {{10}^{15}}\left( {t - {x \over c}} ight)} ight]$$ then the maximum electric field associated with it is -

Accepted Answer

E
0
= B
0
$$ 	imes $$ C
= 100 $$ 	imes $$ 10
$$-$$
6
$$ 	imes $$ 3 $$ 	imes $$ 10
8
= 3 $$ 	imes $$ 10
4
N/C
$$ 	herefore $$  correct answer is 3 $$ 	imes $$ 10
4
N/C

Answer

4.5 $$ 	imes $$ 10
4
N/C

Answer

4 $$ 	imes $$ 10
4
N/C

Answer

6 $$ 	imes $$ 10
4
N/C

Answer

3 $$ 	imes $$ 10
4
N/C

EM waves

If the magnetic field of a plane electromagnetic wave is given by (the speed of light = 3 × 10 8 B = 100 × 10 –6 sin $\left[ {2\pi \times 2 \times {{10}^{15}}\left( {t - {x \over c}} \right)} \right]$ then the maximum electric field associated with it is -

Choose the correct answer: