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  4. This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement 1: A charged particle is moving at right angle to a static magnetic field. During the motion the kinetic energy of the charge remains unchanged. Statement 2: Static magnetic field exert force on a moving charge in the direction perpendicular to the magnetic field.

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Q. This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements.
Statement 1 : A charged particle is moving at right angle to a static magnetic field. During the motion the kinetic energy of the charge remains unchanged.
Statement 2 : Static magnetic field exert force on a moving charge in the direction perpendicular to the magnetic field.

AIEEEAIEEE 2012Moving Charges and Magnetism

Solution:

When a charged particle enters the magnetic field in perpendicular direction then it experience a force in perpendicular direction.
$i.e.\, F = Bqv \,sin\theta$
Due to which it moves in a circular path.