space medium True/False

Mercury has a global intrinsic magnetic field despite its small size and slow rotation.

  1. True
  2. False

Answer: True

MESSENGER confirmed Mercury's dipole field (~300 nT at equator), generated by dynamo in partially molten outer core; unexpected given slow 59-day rotation.

Topic Solar System - Magnetospheres
Exam Relevance SSC General Science, UPSC Prelims