Magnetic field in cylindrical region of radius `R` in inward direction is as shown in figure.

Options

A. An electron will experience no force kept at (2P,0,0) if magnetic field increase with time
B. In the above situation, electron will experience the force in negative y-axis
C. If a proton is kept at `(0,(R)/(2),0)` and magnetic field is decreasing, then it will experience the force in positive x-direction.
D. If a proton is kept at (-R,0,0) and magnetic field is increasing , then it will experience force in negative y-axis

Answer

A, B, C