A uniform magnetic field exists in region which forms an equilateral triangle of side a . The magnetic field is perpendicular to the plane of the triangle. A charge q enters into this magnetic field perpendicularly with speed v along perpendicular bisector of one side and comes out along the perpendicular bisector of other side. The magnetic induction in the triangle is

Question

A uniform magnetic field exists in region which forms an equilateral triangle of side a . The magnetic field is perpendicular to the plane of the triangle. A charge q enters into this magnetic field perpendicularly with speed v along perpendicular bisector of one side and comes out along the perpendicular bisector of other side. The magnetic induction in the triangle is, m v q a, 2 m v q a, m v 2 q a, m v 4 q a

MARKS App · Accepted Answer

The charged particle moves in a circle of radius a 2 ∴ q v B = m v 2 a 2 or B = 2 m v q a

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