Question

What is the formula for the total winding area?

(a) total winding area = number of turns * area of each conductor * space factor

(b) total winding area = number of turns / area of each conductor * space factor

(c) total winding area = number of turns * area of each conductor / space factor

(d) total winding area = 1/number of turns * area of each conductor * space factor

The question was asked during a job interview.

My question is taken from Design of Magnet Coils topic in division Design of Electromagnets of Design of Electrical Machines

Answer 1

Right option is (c) total winding area = number of turns * area of each conductor / space factor

For explanation: First the number of turns is calculated along with the area of each conductor. Next, the space factor is calculated and on substitution gives the total winding area.