A steady current of 2A flows in a coil of emf 12V for 0.4s. A...
PHYSICS
JAMB 2004
A steady current of 2A flows in a coil of emf 12V for 0.4s. A back emf of 3V was induced during this period. The stored energy in the loop that can be utilized is
- A. 9.6J
- B. 2.4J
- C. 12.0J
- D. 7.2J
Correct Answer: B. 2.4J
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