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MHT CET202121 Sep 2021Evening ShiftPhysicsAlternating CurrentActual

The inductive reactance of coil is R . If the inductance of a coil is doubled and frequency of a.c. supply is also doubled then then new inductive reactance will

Options

  1. A2 R
  2. B8 R
  3. CR 2
  4. D4 R

Correct answer

D. 4 R

Step-by-step solution

Inductive reactance = R =2 fL If L and f both are doubled, the inductive reactance will become 4 R

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