A plane polarized electromagnetic wave is travelling in free space along + x direction. The amplitude of Its electric field is E 0 = 240 N/C and its frequency is 150 MHz. The magnetic field of the wave can be written as:

Correct Answer is : B = {(800 nT) sin [(3.14 rad/m) x - (9.42 × 108 rad/s)t]} k̂

B = {(800 nT) sin [(3.14 rad/m) x + (9.42 × 10 8 rad/s)t]} k̂

B = {(800 nT) sin [(3.14 rad/m) x - (9.42 × 10 8 rad/s)t]} k̂

B = {(240 nT) sin [(2.09 rad/m) x - (6.27 × 10 8 rad/s)t]} k̂

B = {(240 nT) sin [(2.09 rad/m) x + (6.27 × 10 8 rad/s)t]} k̂

AAI ATC Junior Executive 2016 Shift 2 Paper

Question : 75 of 120

Marks: +1, -0

A plane polarized electromagnetic wave is travelling in free space along + x direction. The amplitude of Its electric field is E₀ = 240 N/C and its frequency is 150 MHz. The magnetic field of the wave can be written as:

B = {(800 nT) sin [(3.14 rad/m) x + (9.42 × 10⁸ rad/s)t]} k̂
B = {(800 nT) sin [(3.14 rad/m) x - (9.42 × 10⁸ rad/s)t]} k̂
B = {(240 nT) sin [(2.09 rad/m) x - (6.27 × 10⁸ rad/s)t]} k̂
B = {(240 nT) sin [(2.09 rad/m) x + (6.27 × 10⁸ rad/s)t]} k̂

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