Electrical Engineering · DC Machines
What is the relationship between back EMF (Eb) and the applied supply voltage (V) in a DC motor under motoring action?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Back EMF is directly proportional to the supply voltage only.
- 2Back EMF is always equal to the supply voltage.
- 3Back EMF is completely independent of the supply voltage.
- 4Back EMF opposes the applied supply voltage.✓
Correct answer
Back EMF opposes the applied supply voltage.
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