Here, B = 1/p (Wb/m²), θ = 60°, Area normal to the plane of the disc = pr² cos 60° = pr²/2. Flux = B × normal area = 0.2 × 0.2 / 2 = 0.02 Wb.

Question

Accepted Answer

Flux = 0.02 Wb. The flux is calculated as the product of the magnetic field (B) and the area normal to the plane of the disc. Substituting the given values, Flux = B × (pr²/2) = 0.2 × 0.2 / 2 = 0.02 Wb. Hence, the correct answer is A.

Here, B = 1/p (Wb/m²), θ = 60°, Area normal to the plane of the disc = pr² cos 60° = pr²/2. Flux = B × normal area = 0.2 × 0.2 / 2 = 0.02 Wb.

Solution

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