A circular coil of radius `4 cm` and of `20` turns carries a current of `3` amperes. It is placed in a magnetic field of intensity of `0.5 weber//m^(2)`. The magnetic dipole moment of the coil is

Options

A. `0.15` ampere- `m^(2)`
B. `0.3` ampere `-m^(2)`
C. `0.45` ampere `-m^(2)`
D. `0.6` ampere `-m^(2)`

Answer

B