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Calculate the flux produced by the DC series field winding using the following data: Ia=5 A, N=23, R=23.

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Calculate the flux produced by the DC series field winding using the following data: Ia=5 A, N=23, R=23.

(a) 5 Wb

(b) 6 Wb

(c) 9 Wb

(d) 8 Wb

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The correct option is (a) 5 Wb

To explain I would say: In DC series motor, field windings are connected in series with the armature circuit. F=NIa=R∅. Ia∝∅. ∅=F÷R=5 wb.

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