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Question: Answered & Verified by Expert
A positive charge particle having charge q and mass m has velocity v = v i ^ + k ^ 2  in the magnetic field B at the origin. Its speed as the function of y is :

PhysicsMagnetic Effects of CurrentNEET
Options:
  • A v 2 + qE 2 m y
  • B B E 2 + v 2 + qE 2 m y
  • C v 2 + 2 qE m y
  • D None of the above
Solution:
2512 Upvotes Verified Answer
The correct answer is: v 2 + 2 qE m y
Along y v y 2 = 2 × qE m × y

Net speed = v 2 + v y 2

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