Question

If magnetic field in region is given by B = 4i + 8k, then flux passing through a 5 m² area loop will be? A.20i + 40k Wb B.20 Wb C.40 Wb D.30 Wb. ans is c but Φ=BA. so ans should be 20i+40k

Answer 1

it is A . 20I + 40 k

Answer 2

Answer:

The flux is $\phi=20i + 40k$

Explanation:

Given : If magnetic field in region is given by $B = 4i + 8k$.

To find : The flux passing through a 5 m² area loop will be?

Solution :

Flux is defined as the multiple of magnetic field and area perpendicular to magnetic field.

So, $\phi=B\times A$

Here, $B = 4i + 8k$ and $A=5m^2$

Substitute in the formula,

$\phi=4i + 8k\times 5$

$\phi=20i + 40k$

Therefore, The flux is $\phi=20i + 40k$