how do i solve this
At a certain place on earth the electric field portion of a plane electromagnetic wave is found to vary in the following way, expressed in SI units:
E=(2*10^-4)cos(5*10^6 *t)
if the place in question is at x=0 and the wave is moving in the direction through air, what is the equation of the wave in terms of x and t.
what is the equation of the accompanying magnetic field wave?
i have no idea as to how to solve this can someone please show me the process
thank you
At a certain place on earth the electric field portion of a plane electromagnetic wave is found to vary in the following way, expressed in SI units:
E=(2*10^-4)cos(5*10^6 *t)
if the place in question is at x=0 and the wave is moving in the direction through air, what is the equation of the wave in terms of x and t.
what is the equation of the accompanying magnetic field wave?
i have no idea as to how to solve this can someone please show me the process
thank you
-
The electric field portion of a plane electromagnetic wave is found to vary in the following way, expressed in SI units:
E = Em cos (ωt - kx) ----> if x = 0 --> E = Em cos (ωt) ( component of electric field )
B= Bm cos (ωt - kx) ----> if x = 0 --> B = Bm cos (ωt) ( component of magneticfield )
E=(2*10^-4)cos(5*10^6 *t)
known Em = c . Bm -----> B = (Em/c) cos (ωt) c = 3 x 10^8 m/s
-----> B = (2*10^-4/3* 10^8)cos(5*10^6 *t)
B = (6.7 * 10^-13) cos(5*10^6 *t)
E = Em cos (ωt - kx) ----> if x = 0 --> E = Em cos (ωt) ( component of electric field )
B= Bm cos (ωt - kx) ----> if x = 0 --> B = Bm cos (ωt) ( component of magneticfield )
E=(2*10^-4)cos(5*10^6 *t)
known Em = c . Bm -----> B = (Em/c) cos (ωt) c = 3 x 10^8 m/s
-----> B = (2*10^-4/3* 10^8)cos(5*10^6 *t)
B = (6.7 * 10^-13) cos(5*10^6 *t)