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JEE Main 2012 Physics question

PhysicsElectromagnetic InductionJEE Main 2012

This question has Statement 1 and Statement 2. Of the four choices given after the Statements, choose the one that best describes the two Statements. Statement 1: Self inductance of a long solenoid of length L, total number of turns N and radius r is less than . Statement 2: The magnetic induction in the solenoid in Statement 1 carrying current I is in the middle of the solenoid but becomes less as we move towards its ends.

Answer: (2)

Solution

assumes the field everywhere inside. In a real solenoid the field is weaker near the

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Question ID VK-103555