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How speedometer make use of eddy …

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How speedometer make use of eddy current to the inst. speed of vechile?

Posted by Tamanna Sharma 5 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Aditya Chauhan 5 years, 10 months ago

In a speedometer, a magnet rotates according to the speed of the vehicle. The magnet rotates inside an aluminium cylinder (drum) which is held in position with the help of hair springs. Eddy currents are produced in the drum due to the rotation of the magnet and it opposes the motion of the rotating magne

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