Two coupled coils have self inductances $$L1 = 10mH$$ and $$L2 = 20mH$$. The co-efficient of coupling (K) being 0.75 in the air. Voltage in the second coil when the current in circuit is given by $$I = 2 \sin (314 t) A$$ is..........

A

$$3.14 \cos(314 t) V$$

B

$$3.33 \sin(314 t) V$$

C

$$6.66 \cos(314 t) V$$

D

$$6.28 \cos(314 t) V$$