A square of side L m lies in XY plane in a region, where the magnetic field is given by $B = B_0(2\hat i+3\hat j+4\hat k)T$ and $B_0$ a constant. The magnitude of the flux passing through the square is:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → $4 B_0 L^2 Wb$
The magnetic flux $(\phi)$ through a surface is -
$\phi=\vec B.\vec A$
$=B_0(2\hat i+3\hat j+4\hat k).(L^2\hat k)$
$=4 B_0 L^2 Wb$