A plane electromagnetic wave of frequency 20 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 Vm − 1 . T

Question

A plane electromagnetic wave of frequency 20 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 $E_{y} = 9.3 Vm^{- 1}$ . Then, the magnetic field vector of the wave at that point is

Options:

Answer:

B

Solution:

$E = BC 9.3 = B \times 3 \times 1 0^{8} B = \frac{9.3}{3 \times 1 0 ^{8}} = 3.1 \times 1 0^{- 8} T$

TestHub · Accepted Answer

​ E = BC 9.3 = B × 3 × 1 0 8 B = 3 × 1 0 8 9.3 ​ = 3.1 × 1 0 − 8 T ​

Physics - EM Waves Question with Solution | TestHub

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