# Two solenoids

There are two solenoids X and Y with lengths $$20\text{ cm}$$ and $$40\text{ cm},$$ respectively. If the current intensities flowing in X and Y are $$1\text{ A}$$ and $$2\text{ A},$$ respectively, what is the ratio of the intensities of the magnetic fields induced inside X and Y?

The number of turns of the two solenoids are the same.

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