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Q. |
The method of magnetization is: |
A. | hammering a magnet |
B. | heating a magnet |
C. | passing direct current through it |
D. | passing alternating current through it |
Answer» A. hammering a magnet | |
Explanation: Hammering a rod will either allow it to become slightly magnetic inlaid along a magnetic field (i.e.North - South) or demagnetize it if laid across the field lines (i.e. East-West). A current passing through a coil will produce a magnetic field. |
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