Inorder to make 30 kw linear ac generator, how many turns of copper wire is needed in 1 meter long rod and how many tesla permanent magnet is to be used, where its back and fro motion is 10 cm per second?
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When we induce a current in the coil, it becomes an electromagnet. One end of the coil is a north pole and the other end is a south pole.
When we induce a current in the coil, it becomes an electromagnet. One end of the coil is a north pole and the other end is a south pole.When the north pole of our magnet is moving towards the left hand end of the coil, the induced current flows anticlockwise (as we look at the left hand end). This makes the left hand end of the coil into a north pole. And this north pole tries to repel the incoming north pole of the magnet.
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