The amount of back e.m.f. of a shunt motor will increase when

February 7, 2022

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The amount of back e.m.f. of a shunt motor will increase when

Q. The amount of back e.m.f. of a shunt motor will increase when

A. When the Load is Increased

B. When the Field is Weakened

C. When the Field is strengthed

D. None of the above

Answer: When the field is Weakend

The amount of back e.m.f. of a shunt motor will increase when

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When the speed of the DC motor is Increases its Armature current

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A 4 pole, 250 V, DC series motor has a wave-connected armature with 200 conductors. The flux per pole is 25 mWb when the motor is drawing 60 A from the supply. The armature resistance is 0.15 Ω while the series field winding resistance is 0.2 Ω. Calculate the speed under this condition

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