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Question 21

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 $$\frac{\pi\mu_0 N^2 r^2}{L}$$. Statement 2: The magnetic induction in the solenoid in Statement 1 carrying current $$I$$ is $$\frac{\mu_0 NI}{L}$$ in the middle of the solenoid but becomes less as we move towards its ends.

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