Physics > 2004 > 42
JAMB UTME
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
can be utilized is
A.
7.2J
B.
12.0J
C.
2.4J
D.
9.6J
Answer: A
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