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 p

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

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Answer:

B

Solution:

The charged particle moves in a circle of radius $\frac{a}{2}$

$∴ q v B = \frac{m v^{2}}{\frac{a}{2}}$ or $B = \frac{2 m v}{q a}$

TestHub · 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

Physics - Magnetism Question with Solution | TestHub

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