Question

A magnetic field is directed from south to north direction acts on an electron moving from east to west direction bye magnetic force on electron will act:
1. towards north
2. vertically downwards
3. toward east
4. vertically upwards​

Answer 1

Step-by-step explanation:

electron is moving towards east in a magnetic field acting vertically downwards. So, the electron is deflected in a mutually perpendicular direction to magnetic field. Using Fleming's left hand rule it is in south direction

Answer 2

Answer:

Vertically upwards

Step-by-step explanation:

Since the electron is moving towards west, the direction of current would be toward the opposite(i.e, to east) . And as the magnetic field is toward the north,  by using Fleming's Left hand Rule, the direction of current (the thumb) is vertically upwards.