Question

A charged particle moving in a magnetic field experiences a resultant force

• A. In the direction of field
• B. In the direction opposite to that field
• C. In the direction perpendicular to both the field and its velocity
• D. None of the above

Answer 1

The correct option is C

In the direction perpendicular to both the field and its velocity

F = qv $\times$ B
From the above equation, it's very clear that magnetic force always acts in a direction orthogonal to both, velocity and magnetic field. Don't worry if you are not able to develop familiarity with the cross products yet! It will be dealt elaborately soon. Stay curious!