An EM wave is propagating in a medium with a velocity →v=vˆi→v=v^i. The instantaneous oscillating electric field of this EM wave is along the +y+y axis. The direction of the oscillating magnetic field of the EM wave will be along:
1. −z-−z-direction
2. +z-+z-direction
3. −y-−y-direction
4. +y-+y-direction
In an electromagnetic wave in free space the root mean square value of the electric field is Erms=6Erms=6 V/m. The peak value of the magnetic field is:
1. 1.41×10-8T×10−8T
2. 2.83×10-8T2.83×10−8T
3. 0.70×10-8T0.70×10−8T
4. 4.23×10-84.23×10−8 TT
Out of the following options which one can be used to produce a propagating electromagnetic wave?
1. | a stationary charge. |
2. | a chargeless particle. |
3. | an accelerating charge. |
4. | a charge moving at constant velocity. |