Question

A coil of area A = 0.5 m² is situated in a uniform magnetic field B = 4.0 wb/m² and area vector makes an angle of 60⁰ with respect to the magnetic field as shown in figure. The value of the magnetic flux through the area A would be equal to

• A. 2 weber
• B. 1 weber
• C. 3 weber
• D. $\frac { 3 } { 2 }$ weber

Answer 1

Answer: (B)

1 weber

Answer 2

Angle between normal to the plane of the coil and direction of magnetic field is θ = 60⁰

∴ Flux linked with coil φ = BA cosθ = 4.0 × 0.5 × cos 60⁰ ⇒ φ = 1 weber