A square current carrying loop made of thin wire and having a mass m = 10 g can rotate without friction with respect to the vertical axis OO₁ , passing through the centre of the loop at right angles to two opposite sides of the loop. The loop is placed in a homogeneous magnetic field with an induction $\mathrm{B}={10}^{-1}\mathrm{T}$ directed at right angles to the plane of the drawing. A current I = 2A is flowing in the loop. Find the period (in sec) of small oscillations that the loop performs about its position of stable equilibrium. (Round off your answer to nearest integer)