Inductor Lagging Current

October 25, 2019

In c circuits on the other hand the current in the circuit must first flow to the two plates of the capacitor round the circuit from plate to plate and not across the gap between the plates to make a potential difference across them. In a purely inductive circuit the current lags the voltage by 900.

Inductance And Capacitance Ppt Video Online Download

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Energy Stored And Lagging Of Current In A Inductive Circuit

This leads to an interesting.

Inductor lagging current. Inductors basic properties to keep the current constant through it causes current to lag behind the voltage. Inductors basic properties to keep the current constant through it causes current to lag behind the voltage. However in a pure inductive circuit the inductor induces an emf which is opposite to the voltage supply and is proportional to the rate of change of current.

If you want to know how this happens watch the video. In this drawing the voltage is the red waveform and the current in the purple waveform. So the current flowing through the inductor is always lagging behind the voltage and current and voltage are said to be out of phase.

This means that current lags the voltage when the angle of the current sine wave with respect to an arbitrarily chosen reference is less than the angle of the voltage sine wave with respect to the same reference. This means the voltage starts first and then the current starts a bit after. If you want to know how this happens watch the video.

You notice that the red waveform crosses the x axis before the purple waveform does. Therefore current can quickly be identified as lagging if the angle is positive.