(a) A $250 \mathrm{~V}, 4$ pole wave wound do series motor has 782 conductors on its amalure. The folal ammalure resislance is $0.75 \Omega$. The molor lakes a current of 40 A . Estimate the speed and gross lorque if the flux per pole is 25 mW b.
Explanation
The speed of the motor is calculated using the back emf, number of poles, flux per pole, total number of conductors, and number of parallel paths. The gross torque is calculated using the power, flux per pole, total number of conductors, number of parallel paths, and speed.
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