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Inductors - Technical MCQs

Q1:

Inductance is:

A directly proportional to the length of the coil

B directly proportional to the number of turns on the coil

C inversely proportional to the cross-sectional area of the coil

D inversely proportional to the permeability

ANS:B - directly proportional to the number of turns on the coil

L = N^2*permeability*A/l.