What is the effect of frequency in an oscillator if inductor value changes in an ic???
Answers
As a result of the magnetic field associated with the current flow, inductors generate an opposing voltage proportional to the rate of change in current in a circuit. Inductance is caused by the magnetic field generated by electric currents flowing within an electrical circuit. All of the math about the reactance increasing with frequency is true. However, every inductor has a self-resonant frequency which is caused by the stray capacitance within the inductor. So as the frequency approaches the resonant frequency, the equivalent value of L will actually increase.
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The inductive reactance of an inductor increases as the frequency across it increases therefore inductive reactance is proportional to frequency ( XL α ƒ ) as the back emf generated in the inductor is equal to its inductance multiplied by the rate of change of current in the inductor.
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