how to make a magnet using stroking method
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Connect the solenoid to a direct current (d.c) supply.Place the steel bar inside the solenoid.Switch on the d.c supply.When current flows through the solenoid, a strong magnetic field is produced which magnetise the steel bar.The pole of the magnetized steel bar is determined by Right Hand Grip Rule.
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Ex:TAKE A METAL STROKE IT WITH MAGNET MANY TIMES AFTER THAT THE METAL WILL GET SOME PROPERTY OF MAGNET
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