Question

Why magnetic field is non-zero outside the solenoid?​

Answer 1

Answer:

Because although the magnetic field is stronger inside the solenoid (because the shape of the solenoid reinforces it) the current flowing through the coil generates a magnetic field outside too and it is not cancelled completely, thus B is non-zero outside the solenoid.

Answer 2

Answer:

“The poetry of earth is never dead”- What does the poet mean by it? Answer: By this, the poet means that the songs and music of nature will never stop. It would go on without any break. Nature and poetry i.e. music are so linked that they will continuously evolve. ... Thus, the poetry of earth never ceases.