A charged particle enters parallel in a strong magnetic field, its K.E?
Correct answer: D. Remains constant
- A. Decreases
- B. Increases then decreases
- C. Becomes zero
- D. Remains constant
Explanation
Option A : When a charged particle enters a magnetic field, its K.E. not decreases. Option B : When a charged particle enters a magnetic field, its K.E. does not increase and then decreases. It remains the same. Option C : When a charged particle enters the magnetic field, its K.E. will not become zero rather it remains the same.Option : D When a charged particle enters, parallel to the uniform magnetic field, it is not acted by any force, that is, it is not accelerated. Thus, its speed remains constant, and so does its kinetic energy.
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About Charged Particle in a Magnetic Field
A charged particle moving through a magnetic field experiences the Lorentz force, which is perpendicular to both its velocity and the field. The motion may be circular or helical, with questions involving radius, angular frequency, time period, and work done. A stationary charge feels no magnetic force.
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