A plane electromagnetic wave of frequency 20 MHz travels in free space along the +x direction. At a particular…

Question

A plane electromagnetic wave of frequency $20 \, \text{MHz}$ travels in free space along the $+x$ direction. At a particular point in space and time, the electric field vector of the wave is $E_y = 9.3 \, \text{V/m}$ . Then, the magnetic field vector of the wave at that point is:

A
$B_z = 9.3 \times 10^{-8} \, \text{T}$
B
$B_z = 1.55 \times 10^{-8} \, \text{T}$
C
$B_z = 6.2 \times 10^{-8} \, \text{T}$
D
$B_z = 3.1 \times 10^{-8} \, \text{T}$

Accepted Answer

D. $$B_z = 3.1 	imes 10^{-8} \, 	ext{T}$$

Answer

A. $$B_z = 9.3 	imes 10^{-8} \, 	ext{T}$$

Answer

B. $$B_z = 1.55 	imes 10^{-8} \, 	ext{T}$$

Answer

C. $$B_z = 6.2 	imes 10^{-8} \, 	ext{T}$$

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