What will be the relation between the current through a pure inductor and the voltage across the inductor?
What will be the relation between the current through a pure inductor and the voltage across the inductor? Correct Answer <span style=" line-height: 107%; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;">Current will lag by 90°</span>
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- In case of pure resistive circuit, the phase angle between voltage and current is zero i.e. both are in phase.
- In case of pure capacitive circuit, phase angle is 90° i.e. current leads the voltage by 90°.
- In case of series RC circuit, the phase angle is resultant of both resistance and capacitance. This will be varies from 0 to 90° based on the values of resistance and capacitance and AC current leads the voltage by an angle in between 0 to 90°
- In pure inductive circuit, the current lags the voltage by 90°
- In series RL circuit, the current lags the voltage by an angle in between 0 to 90°.
- So that in a 1-ϕ R-L series circuit, if current lags the supply voltage by an angle ϕ, then the voltage across inductor leads the supply voltage and current by an angle of 90 - ϕ.
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Feb 20, 2025