When a proton is released from rest in a room, it starts with an initial acceleration a0 towards west. When it is projected towards north with a speed 0 it moves with an initial acceleration 3a0 toward west. The electric and magnetic fields in the room are:
As we learned in @8252 and @8250
Acceleration of charged particle,
Release from west
When it is projected towards north, acceleration due to magnetic force = 2ao
Magnetic field,
Option 1)
This option is incorrect
Option 2)
This option is incorrect
Option 3)
This option is correct
Option 4)
This option is incorrect