Given:
The direction of magnetic field is from the top to bottom.
The direction of current is into the screen.
To find the direction of particle.
Step-by-step explanation:
According to Fleming's left hand rule,
First finger indicates the direction of magnetic field,
Central finger indicates the direction of current,
Thumb indicates the direction of motion.
On applying Fleming left hand rule, the direction of particle bend will be towards left.
Thus, the correct option is a