Solved UPSC CDS/OTA Question
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Q · MagnetismModerate · 45s
The Earth's magnetic field is due to: 178
TopicMagnetism
Question Typemultiple choice
DifficultyModerate
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Convection currents of molten iron in outer core produce magnetic field.
186
Final Answer: Option B - Electric currents in Earth's core
182