Discuss why it is relatively easy to change the amplitude of an AC voltage to a higher or lower value, but why it is difficult to change its frequency.

University Physics Volume 2
18th Edition
ISBN:9781938168161
Author:OpenStax
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Chapter15: Alternating-current Circuits
Section: Chapter Questions
Problem 3CQ: In an RLC series circuit, can the voltage measured across the capacitor be greater than the voltage...
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Discuss why it is relatively easy to change the amplitude of an AC voltage to a higher or lower
value, but why it is difficult to change its frequency.

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