If a D.C. motor is connected across the A.C. supply it will
A. Run at normal speed
B. Not run
C. Run at lower speed
D. Burn due to heat produced in the field winding by eddy currents
Answer: Option D
Solution(By Examveda Team)
If a D.C. motor is connected across an A.C. supply, it will burn due to the heat produced in the field winding by eddy currents.The field windings in a D.C. motor are designed for direct current, and when subjected to alternating current, the changing magnetic fields induce eddy currents in the windings.
These eddy currents generate excessive heat, leading to potential damage or burning of the motor.
This Question Belongs to Electrical Engineering >> D.C. Motors
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