Question

A positively charged particle moving due east enters a region of uniform magnetic field directed vertically upwards. This particle will

• A. get deflected in vertically upward direction
• B. move in circular path with an increased speed
• C. move in a circular path with decreased speed
• D. move in a circular path with uniform speed

Answer 1

The correct option is D move in a circular path with uniform speed

When a positively charged enters in a region of uniform magnetic field directed vertically upwards, it experiences a centripetal force which moves the particle in circular path with a uniform speed (in clockwise direction).