NEET 2022 — Physics solution

NEET2022Physics

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

A
0.5 weber
B
1 weber
C
Zero weber
D
2 weber

Solution

The plane of the loop is perpendicular to $B$ , so the area vector $A$ is parallel to $B$ and the angle between them is $0^{\circ}$ .

$ϕ = B A cos 0^{\circ} = 0.5 \times (1)^{2} \times 1 = 0.5$ Wb.

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