Question

What is the formula for the flux density in stator core?

(a) flux density in stator core = maximum flux / length of the iron * depth of stator core

(b) flux density in stator core = maximum flux * length of the iron * depth of stator core

(c) flux density in stator core = maximum flux / 2 *length of the iron * depth of stator core

(d) flux density in stator core = maximum flux * length of the iron / depth of stator core

This question was posed to me by my college professor while I was bunking the class.

My query is from Design of Stator topic in section Design of Single Phase Induction Motor of Design of Electrical Machines

Answer 1

Right answer is (c) flux density in stator core = maximum flux / 2 *length of the iron * depth of stator core

The explanation is: The maximum flux, length of iron and depth of stator core is calculated. On substitution it provides the flux density in stator core.