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Question: Answered & Verified by Expert
Two parallel beams of electrons are moving with small velocities v<<c in the same direction, then there will be
PhysicsMagnetic Effects of CurrentNEET
Options:
  • A a net repulsion between them
  • B a net attraction between them
  • C the electric repulsion and magnetic attraction nullify each other
  • D the electric attraction and magnetic repulsion nullify each other
Solution:
1719 Upvotes Verified Answer
The correct answer is: a net repulsion between them
Due to electrostatic force, there will be repulsion between electron beams. Due to magnetic interaction electron beams will attract each other as they are moving in the same direction.

As the magnitude of electrostatic repulsion is more than magnetic attraction therefore there will be a net repulsion.

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