Phase difference between V and I in purely inductive A.C. circuit:

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  1. 0° 
  2. 180° 
  3. 90° 
  4. 360° 

Answer (Detailed Solution Below)

Option 3 : 90° 
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Detailed Solution

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CONCEPT: 

  • circuit that has the only inductor is known as a purely inductive circuit.

EXPLANATION:

  • Alternating emf in the circuit is

  • Current in the inductive circuit is 

  • From above it is clear that voltage leads the current by π/2 or 90°. Therefore option 3 is correct.

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