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College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

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BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A magneto is used to cause the spark in a spark plug in many lawn mowers today. A magneto consists of a permanent magnet mounted on a flywheel so that it spins past a fixed coil. Explain how this arrangement generates a large enough potential difference to cause the spark.

To determine
The cause of spark while magneto spins between fixed coils.

Explanation

According to faraday’s law the emf will be induced in the coil whenever the magnetic flux changes.

When this magnet spins at high speeds between the fixed coil, magnetic flux associated with the coil also changes very ...

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