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MHT CET202310 May 2023Morning ShiftPhysicsAlternating CurrentActual

The inductive reactance of a coil is ' X _ L '. If the inductance of a coil is tripled and frequency of a.c. supply, is doubled, then the new inductive reactance will be

Options

  1. A2 3 X_L
  2. B3 2 X_L
  3. C1 6 X_L
  4. D6 X_L

Correct answer

D. 6 X_L

Step-by-step solution

aligned X _ L & = L =2 fL f _ new & =2 f and L _ new =3 ~L X _ L ^ & =2 (2 f ) 3 ~L & =6 2 fL =6 X _ L aligned

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