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MHT CET Physics question

PhysicsElectromagnetic InductionMHT CET

A coil is wound on a frame of rectangular cross section. If the linear dimensions of the frame are doubled and the number of turns per unit length of the coil remains the same, then the self inductance increases by a factor of

Answer: (C)

Solution

; doubling linear dimensions makes the area 4 times and the length 2 times with

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Question ID VK-081573