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 homo geneous magnetic field with an induction B = 10–1 T directed at right angles to the plane of the drawing.A current I =2 A is flowing in the loop. Find the period of small oscillations that the loop performs about its position of stable equilibrium.
