State whether the following statements are true or false:
(i) A cylindrical magnet has only one pole. F
(ii) Artificial magnets were discovered in Greece.
(iii) Similar poles of a magnet repel each other. T
(iv) Maximum iron filings stick in the middle of a bar magnet when it is brought
near them.
(v) Bar magnets always point towards North-South direction.
(vi) A compass can be used to find East-West direction at any place.
(vii) Rubber is a magnetic material.
Answers
Answer:
(i) False; A magnet of any shape always has two poles: north pole and south pole.
(ii) False; Natural magnets were discovered in Greece.
(iii) True
(iv) False; Maximum iron filings stick at the two ends of the magnet as the magnetic strength is maximum at the ends or poles of a magnet.
(v) True
(vi) True; The needle of a magnetic compass always points towards the North−South direction. If the North−South direction is known, then the East−West direction can also be determined which is perpendicular to the compass needle.
(vii) False; Rubber does not get attracted by a magnet. Therefore, it is not a magnetic material.
Answer:
Answer.
(i) False; A magnet of any shape always has two poles: north pole and south pole.
(ii) False; Natural magnets were discovered in Greece.
(iii) True
(iv) False; Maximum iron filings stick at the two ends of the magnet as the magnetic strength is maximum at the ends or poles of a magnet.
(v) True
(vi) True; The needle of a magnetic compass always points towards the North−South direction. If the North−South direction is known, then the East−West direction can also be determined which is perpendicular to the compass needle.
(vii) False; Rubber does not get attracted by a magnet. Therefore, it is not a magnetic material.
Explanation:
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