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Electromagnets are magnets formed by passing of current through a conductor.
We can increase the strength of an electromagnet by increasing the current or no. of turns of the coil.
Fleming's left hand rule states that "Stretch by he thumb , forefinger and central finger of your left hand such that they are mutually perpendicular to each other. If the forefinger points at the direction of magnetic field , the thumb will point in the direction of motion or force on the conductor and the central finger in the direction of current.
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We can increase the strength of an electromagnet by increasing the current or no. of turns of the coil.
Fleming's left hand rule states that "Stretch by he thumb , forefinger and central finger of your left hand such that they are mutually perpendicular to each other. If the forefinger points at the direction of magnetic field , the thumb will point in the direction of motion or force on the conductor and the central finger in the direction of current.
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a soft metal core made into a magnet by the passage of electric current through a coil surrounding it.it is called as electromagnets.
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