A spatially homogeneous magnetic field changes in time according to the equation B = B_{0}(3*t *^{2} + t + *k*) where B_{0} and *k *are constants. The field "flows" through a fixed area A with an inclination angle φ = 60° with respect to the (perpendicular to the) area. Find an algebraic expression for the *emf * induced around a circuit enclosing the area A, as a function of time.

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