A coil of 100 turns and area 5 square centimetre is placed in a magnetic field B = 0.2 T . The normal to the plane of the coil makes an angle of `60^(@)` with the direction of the magnetic field. The magnetic flux linked with the coil is

Options

A. `5xx10^(-3)`Wb
B. `2.5xx10^(-3)`Wb
C. `3.5xx10^(-3)`Wb
D. `4.5xx10^(-3)` Wb

Answer

A

Explanation

`phi=nABcos60`
`=5xx10^(-3)Wb`