A freely suspended compass needle on the earth's surface settles in a plane called----------...
PHYSICS
WAEC 2022
A freely suspended compass needle on the earth's surface settles in a plane called----------
- A. geographic meridian
- B. magnetic meridian
- C. magnetic declination
- D. isoganals
Correct Answer: B. magnetic meridian
Explanation
The magnetic meridian is an equivalent imaginary line connecting the magnetic south and north poles and can be taken as the horizontal component of magnetic force lines along the surface of the earth. Therefore, a compass needle will be parallel to the magnetic meridian.
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