Physics · PYQ NEET UG 2022
हिन्दीA square loop of side \( 1\text{ m} \) and resistance \( 1\text{ }\Omega \) is placed in a magnetic field of \( 0.5\text{ T} \). If the plane of loop is perpendicular to the direction of magnetic field, the magnetic flux through the loop is:
Correct answer · Option 4
0.5 weber
Explanation
Magnetic flux \( \Phi = B \cdot A \cdot \cos\theta \). Since the plane of the loop is perpendicular to the magnetic field, the normal to the loop is parallel to the field (\( \theta = 0^\circ \)). \( \Phi = 0.5 \times (1 \times 1) \times \cos(0^\circ) = 0.5\text{ Wb} \).