Question

A square loop of wire 10.0 cm on a side is in a 1.25 T magnetic field B. What are the maximum and minimum values of flux that can pass through the loop?

the flux is given by eq.2

Answer 1

The minimum flux is zero.

The maximum flux is as follows

$$\phi=BA\\ =1.25*0.10^2=0.0125\:\rm Wb$$