JEE Main · PhysicsEasy
In a pure inductive circuit, what is the phase relationship between the voltage and the current?
- A.Voltage lags current by 90 degrees
- B.Voltage leads current by 90 degrees
- C.Voltage and current are in phase
- D.Voltage leads current by 180 degrees
Show correct answer & step-by-step solution
Correct answer: B — Voltage leads current by 90 degrees
Solution
In a pure inductor, the back EMF opposes the change in current, causing the current to lag behind the voltage. Therefore, the voltage leads the current by a phase angle of 90 degrees.
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