A) \[\frac{T}{2},\frac{3T}{2},\frac{T}{4}\]
B) \[\frac{T}{3},\frac{T}{9},\frac{T}{12}\]
C) \[0,\,2T,\,3T\]
D) \[\frac{T}{4},\,\frac{3T}{4},\,\frac{5T}{4}\]
Correct Answer: D
Solution :
Magnetic energy is maximum when electrical energy is equal to zero. Hence \[t=\frac{T}{4},\frac{3T}{4},\frac{5T}{4},\,\,\,\,....\]
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