Physics · Electrical Machines
When is the mechanical power developed by a D.C. motor maximum?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1When there is maximum back e.m.f.
- 2When there is minimum back e.m.f.
- 3When the back e.m.f. is equal to half the applied voltage✓
- 4When the back e.m.f. is equal to the applied voltage
Correct answer
When the back e.m.f. is equal to half the applied voltage
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