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What is the formula for the output coefficient of the output equation?

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What is the formula for the output coefficient of the output equation?

(a) output coefficient = 11 * winding space factor  * specific magnetic loading / specific electric loading * 10^-3

(b) output coefficient = 11 * winding space factor  * specific magnetic loading * specific electric loading * 10^-3

(c) output coefficient = 11 * winding space factor  / specific magnetic loading * specific electric loading * 10^-3

(d) output coefficient = 11 / winding space factor  * specific magnetic loading * specific electric loading * 10^-3

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Enquiry is from Output Equation in chapter Design of Single Phase Induction Motor of Design of Electrical Machines

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Correct answer is (b) output coefficient = 11 * winding space factor  * specific magnetic loading * specific electric loading * 10^-3

The explanation is: The winding space factor, specific magnetic loading, specific electric loading is calculated. On substitution gives the output coefficient used for the calculation of output equation.

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