Question

Figure represents an area $ A=0.5\,{{m}^{2}} $ situated in a uniform magnetic field $ B=2.0\,Wb/{{m}^{2}} $ and making an angle of $ 60{}^\circ $ with respect to magnetic field. The value of magnetic flux through the area will be

• A. 0.5 Wb
• B. $ \sqrt{3}\,Wb $
• C. $ \frac{3}{2}Wb $
• D. 2.0 Wb

Answer 1

Answer: (A)

As $\phi=B \cdot A$
$\Rightarrow \phi=2 \times 0.5 \times \cos 60^{\circ}$
$=2 \times 0.5 \times \frac{1}{2}=0.5 \,Wb$