NEET2023PhysicsElectromagnetic InductionActual

The net magnetic flux through any closed surface is:

Options

ANegative
BZero
CPositive
DInfinity

Correct answer

B. Zero

Step-by-step solution

From Gauss law of magnetism, we know that the net magnetic flux through any closed surface is zero, i.e., ∮ B → · d s → = 0 , because there are no magnetic monopoles. Here, B is magnetic field and s is surface area. The number of field lines entering the surface is equal to the field lines leaving the surface.

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