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Inductors - Technical MCQs

Q1:

The four factors determining inductance are the number of turns, coil length, coil area, and:

A permeability

B reluctance

C counter emf

D coefficient of coupling

ANS:A - permeability

L = (uo ur A N^2) /l.

uo = free space in permeability.
uo = core material in relative permeability.
A = core in area.
N = number of coil turn.
l = coil length.