Aradio wave has a frequency of 1000hz. what is the energy of the wave?

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge