What is frequency?

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The number of cycles covered by a moving body per unit of time is called it's frequency. In other words if a body is moving in a circular motion then number of cycles covered by it per second is it's frequency.
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The rate at which something occurs over a particular period of time or in a given sample.
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The rate at which something occurs over a particular period of time or in a given sample
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frequency is the number of complete cycles per second in alternating current direction.
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