A square loop of side 1 m and resistance 1 Ω is placed in a magnetic field of 0.5 T. Its plane is perpendicular to the magnetic-field direction. The magnetic flux through the loop is:
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Question

A square loop of side 1 m and resistance 1 Ω is placed in a magnetic field of 0.5 T. Its plane is perpendicular to the magnetic-field direction. The magnetic flux through the loop is:

G1 Physics · Accepted Answer

Step 1: Area A = (1 m)² = 1 m². Step 2: The field is normal to the plane, so θ = 0° relative to the area vector. Step 3: Φ = BAcosθ = 0.5 × 1 × 1 = 0.5 Wb (option B). Final answer: (B) 0.5 Wb.