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The induced emf varies as the coil rotates

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The induced emf varies as the coil rotates

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-The greater the frequency
-The larger the peak value

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One complete rotation of the coil starting with its plane perpendicular to the field 

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One complete rotation of the coil starting with its plane perpendicular to the field 

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Therefore each full cycle of the alternating emf takes the same time as one full rotation of the coil.

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The picture shows the inside of a cycle dynamo.

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The magnitude of the induced emf when is greatest, and when is zero

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The magnitude of the induced emf when is greatest, and when is zero

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When the sides of the coil move parallel to the field lines, the induced emf is zero
When the loop is perpendicular to the magnetic field it has maximum value.

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Sketch a graph to show how the induced emf on an alternating current generator varies with time

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The simple alternating current generator

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The simple alternating current generator

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The simple alternating generator consists of a coil that spins in a uniform magnetic field

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How AC Generator Produces Electricity? - Physics || Extramarks

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Do You Know How AC Generator produces electricity, what are the fundamentals of AC Generator and how AC generator is made? Get all the answers of these above questions in this video of Extramarks Extramarks is the leader in digital education for K-12 education.