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The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center.
The magnetic field will be strongest inside the bar and at its ends (poles). Take this link if you want to learn how a transformer is created: Creating a Transformer . Review. If we move a conductor in a magnetic field, a current is induced in the conductor (wire). An AC current in a coil of wire can induce an AC current in another nearby coil of wire.