Answer to Question 6

 

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The magnetic circuit in Question 5 has a magnetic source that consists of 300 turns that carry a current of 0.75 A. 

(a) Work out the magnetomotive force.

(b) Work out the flux.

(a) Fm = 300 turns 0.75 A = 225 A turns

 

(b) Formula:

F  = 225 A turns  3.09 106 H-1  = 7.28 10-5 Wb