Question 4
North pole of a magnet can be identified by
(a) Another magnet having its poles marked as North pole and South pole.
(b) Another magnet no matter whether the poles are marked or not.
(c) Using an iron bar.
(d) Using iron filings.
Question 7
A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located?