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JIPMER 2006
Exam
JIPMER
Year
2006
Subject
Physics
Chapter
Magnetic Effects of Current

JIPMER 2006 · Physics · Magnetic Effects of Current

If a charge particle enters perpendiculary in the uniform magnetic...

If a charge particle enters perpendiculary in the uniform magnetic field, then :

Options

  1. Aenergy and momentum both remains constant
  2. Benergy remains constant but momentum changes
  3. Cboth energy and momentum changes
  4. Denergy changes but momentum remains constant

Correct answer

B. energy remains constant but momentum changes

Step-by-step solution

When charge particle enters in a magnetic field perpendicularly, then the magnitude of its velocity remains constant, but direction changes, so its energy (scalar quantity) remains constant, but its momentum (vector quantity) changes.
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