A square loop of side $$15 \text{ cm}$$ being moved towards right at a constant speed of $$2 \text{ cm/s}$$ as shown in figure. The front edge enters the $$50 \text{ cm}$$ wide magnetic field at $$t = 0$$. The value of induced emf in the loop at $$t = 10 \text{ s}$$ will be :

A

$$0.3 \text{ mV}$$

B

zero

C

$$4.5 \text{ mV}$$

D

$$3 \text{ mV}$$