Answer :
When an inductive component is present in a circuit, the current (iL) will trail the voltage by one-fourth of a cycle.It can be claimed that the current lags the voltage by 90° because one cycle is frequently described as 360°. The inductive reactance alters as the current changes, which causes this phase shift.
As the frequency rises in an inductive circuit, the impedance rises as well, reducing the current.As the frequency rises in a capacitive circuit, the impedance falls, increasing the current.The current in a restrictive circuit won't fluctuate.
Impedance can be capacitive or inductive at lower frequencies, and it can alter as the frequency varies.
The capacitive and inductive components of impedance become equal and opposite at a specific frequency known as the resonant frequency, and they entirely cancel each other out. At this frequency, the circuit becomes purely resistive.
Through this point, the circuit switches from capacitive to inductive, or vice versa, depending on whether we are changing from a lower to a higher frequency.This fact is widely applied in resonant circuits and filters for a variety of purposes.
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