Question

A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is ______.

Options

• towards south

• towards east

• downward

• upward

Answer 1

A positively-charged particle (alpha-particle) projected towards west is deflected towards north by a magnetic field. The direction of magnetic field is upward.

Explanation:

Applying Fleming's left-hand rule, we can infer that the direction of the magnetic field is upwards.