Question 246: Magnetism and Matter

Question

A charged particle moves through a magnetic field perpendicular to its direction. Then

Accepted Answer

NOTE :
When a charged particle enters a magnetic field at a direction perpendicular to the direction of motion, the path of the motion is circular. In circular motion the direction of velocity changes at every point (the magnitude remains constant).
Therefore,  the tangential momentum will change at every point. But kinetic energy will remain constant as it is given by $${1 \over 2}\,m{v^2}$$ and $${v^2}$$ is the square of the magnitude of velocity which does not change.

Answer

Kinetic energy changes but the momentum is constant

Answer

the momentum changes but the kinetic energy is constant

Answer

both momentum and kinetic energy of the particle are not constant

Answer

both momentum and kinetic energy of the particle are constant

Magnetism and Matter

A charged particle moves through a magnetic field perpendicular to its direction. Then

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