Physics · Electrical Machines
What happens to a DC machine during regenerative braking?
- 1The back e.m.f. of the DC machine becomes exactly equal to the applied voltage.
- 2The back e.m.f. of the DC machine drops below the applied supply voltage.
- 3The DC machine acts as a motor drawing excess current from the supply.
- 4The DC machine acts as a generator and feeds power back into the supply.✓
Correct answer
The DC machine acts as a generator and feeds power back into the supply.
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