A constant magnetic field of 1 T is applied in the $$x > 0$$ region. A metallic circular ring of radius 1 m is moving with a constant velocity of 1 m s$$^{-1}$$ along the $$x$$-axis. At $$t = 0$$ s, the centre O of the ring is at $$x = -1$$ m. What will be the value of the induced emf in the ring at t = 1 s? (Assume the velocity of the ring does not change.)

A

0 V

B

2 V

C

$$2\pi$$ V

D

1 V