Physics help, thank you guys so much!

 Δt = 5.85 s

Explanation:

For this exercise let's use Faraday's Law

           emf = -  d fi / dt

            = B. A

           \phi = B A cos θ

The bold are vectors. It indicates that the area of the body is A = 0.046 m², the magnetic field B = 1.4 T, also iindicate that the normal to the area is parallel to the field, therefore the angle θ = 0 and cos 0 =1.

suppose a linear change of the magnetic field

            emf = - A

             Dt = - A  

the final field before a fault is zero

let's calculate

            Δt = - 0.046 (0- 1.4) / 0.011

            Δt = 5.85 s

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this