The charge on a particle is 100 times that of electron. It is revolving in a circular path of radius 0.8 m at a frequency of 1011 revolutions per second. The magnetic field at the centre of path will be -
(A) 10–7 μ0
(B) 10-7/μ0
(C) 10–17 μ0
(D) 10–6 μ0
