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A solenoid with 7 turns per unit length ...

A solenoid with 7 turns per unit length is carrying a current of `2.5A`. What is the magnetic intensity inside the solenoid ?

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Turns per unit length `n=7 cm^(-1)=700 m^(-1)`,
if `mu` be the permeability of the medium inside the solenoid then, magnetic field `B=mu nI`.
`:.` Magnetic intensity.
`H=(B)/(mu)=nl=700xx2.5=1750A*m^(-1)`
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