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Question: Answered & Verified by Expert
Pick out the wrong statement.
PhysicsMagnetic Effects of CurrentKCETKCET 2012
Options:
  • A An electron at rest experiences no force in the magnetic field
  • B The gain in the KE of the electron moving at right angles to the magnetic field is zero
  • C When an electron is shot at right angles to the electric field, it traces a parabolic path
  • D An electron moving in the direction of the electric field gains KE
Solution:
2158 Upvotes Verified Answer
The correct answer is: An electron moving in the direction of the electric field gains KE
Electron is negatively charged, hence experiences electrostatic force opposite to the direction of electric field. As a result, an electron moving in the direction of electric field loses kinetic energy.

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