Question

A coil has an inductance of 1 H. (i) At what frequency will it have a reactance of 3142 ohm? (ii) What should be the capacity of a capacitor which has the same reactance at that frequency?
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Answer 1

Answer:

Explanation:

inductive reactance = L 2 π v

v = inductive reactance /2π L

   =3142 / 2× 3.142 × 1

    = 500(FREQUENCY)

capacitive reactance = 1/c 2π v

C = 1/ capacitive reactance×2πv

   = 1/ 3142 × 2× 3.142× 500

   = 1/ 3142 × 3142

   = 0.1 ×10^-6