A solenoid has a core made of material with relative permeability 400. The magnetic field produced in the interior of solenoid is 1.0 T. The magnetic intensity in SI units is \(\alpha \times {10}^{5}\). The value of \(\alpha\) is (Free space permeability \({\mu }_{0}=4\pi \times {10}^{-7}\) SI units.)

[JEE Main 2026, 4 Apr (Shift 2)]

Question

A solenoid has a core made of material with relative permeability 400. The magnetic field produced in the interior of solenoid is 1.0 T. The magnetic intensity in SI units is \(\alpha \times {10}^{5}\). The value of \(\alpha\) is (Free space permeability \({\mu }_{0}=4\pi \times {10}^{-7}\) SI units.)

[JEE Main 2026, 4 Apr (Shift 2)]

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