Networks Analysis and Synthesis - Engineering

Q1:

A magnetic circuit has an iron length of 20 cm and air gap length 0.1 cm. If μr = 200 then

A mmf for iron and air gap are equal

B mmf for iron is much less than that for air gap

C mmf for iron is much more than that for air gap

D either (a) or (c)

ANS:A - mmf for iron and air gap are equal