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The plane of polarisation of a linearly polarised wave contains

  • A.both field vectors
  • B.the direction of travel alone
  • C.the electric field and the direction of travel
  • D.the magnetic field and the direction of travel

Answer: C

The convention takes the electric field as defining the polarisation, so the plane of polarisation holds that field and the propagation direction. The magnetic field is perpendicular to that plane, and an antenna must be aligned with the electric field to receive.

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