A circular disc of radius 0.2 m is placed in a uniform magnetic field of induction 1π  Wbm2 in such a way that its axis makes an angle of 600 with B→. The magnetic flux linked with the disc is

The magnetic flux ¢ passing through a plane surface of area A placed in a uniform magnetic field Bis given byϕ =  BA  cos  θwhere θ is the angle between the direction of B and the normal to the plane.Here,  θ=600,  B=1π   Wb/m2,  A=π0.22There,  ϕ =1π   ×  π 0.22 ×  cos  600= 0.22 ×  12  =  0.02  Wb