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MHT CET Physics question

PhysicsAlternating CurrentMHT CET

A 100% efficient transformer has 100 turns in the primary and 25 turns in its secondary coil. If the current in the secondary coil is 4 A, then the current in the primary coil is

Answer: (A)

Solution

For 100% efficiency , so A; 4 A, 8 A and 16 A use the wrong ratio. Hence the correct option is (a).

Question ID VK-081942