A proton located at the origin is accelerated in the y direc

A proton located at the origin is accelerated in the -y direction for a brief time. How much time passes before a detector located at m detects a radiative electric field? What is the direction of the radiative electric field observed at this location? If the accelerated particle had been an electron instead of a proton, what would have been the direction of the radiative electric field at this location?

Solution

According to the problem,

a,) time = distance/ velocity, velocity = 3*10⁸ as it moves with the speed of light and distance os 0.2 given,

t = 0.2/3*10⁸

t = 6.67 *10^-10s

b.) + Y direction

c.) -Y direction