Question

What is the relation between flux densities with respect to saturation factor?

(a) flux density is indirectly proportional to the square of the saturation factor

(b) flux density is directly proportional to the square of the saturation factor

(c) flux density is indirectly proportional to the saturation factor

(d) flux density is directly proportional to the saturation factor

I got this question during an online interview.

I would like to ask this question from Operating Characteristics topic in division Design of Single Phase Induction Motor of Design of Electrical Machines

Answer 1

Correct option is (d) flux density is directly proportional to the saturation factor

The explanation: The saturation factor is kept low if the flux densities in the teeth and core are low. The saturation factor is kept high if the flux densities in the teeth and core are high.