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Q.

At any point, empty space surrounded by a toroid, the magnetic field is B₁. At any point outside the toroid, the magnetic field is B₂.

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a

B₁= B₂ = 0

b

B₁= B₂

c

B₁> B₂

d

B₂> B₁

answer is D.

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Detailed Solution

As net current is zero, magnetic field at the empty space surrounded by toroid and outside the toroid is zero.

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