Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
If a charge particle enters perpendiculary in the uniform magnetic field, then :
PhysicsMagnetic Effects of CurrentJIPMERJIPMER 2006
Options:
  • A energy and momentum both remains constant
  • B energy remains constant but momentum changes
  • C both energy and momentum changes
  • D energy changes but momentum remains constant
Solution:
2042 Upvotes Verified Answer
The correct answer is: energy remains constant but momentum changes
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.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.