CUET Preparation Today
A plane Electromagnetic Wave of frequency 30 MHz travels in free space along the x-direction. The electric field component of the wave at a particular point of space and time E=6 Vm-1 along y-direction. Its magnetic field component B at this point would be |
2 × 10−8 T along z-direction 6 × 10−8 T along x-direction 2 × 10−8 T along y-direction 6 × 10−8 T along z-direction |
2 × 10−8 T along z-direction |
The frequency of Electromagnetic Wave along y −direction v = 30 MHz The electric field component of the wave along y-direction. E = 6 Vm-1
In Electromagnetic, the ratio of the amplitudes of electric and magnetic field is always constant and it is equal to velocity of the Electromagnetic Waves. ie, $ \frac{E}{B} = c$ or $B =\frac{E}{c}=\frac{6}{3×10^8}$ or $ B = 2 × 10^{-8} T$ |
