A solenoid of length 1.5m and 4cm in diameter possesses 10 turns per metre. A current of 5A is flowing through it. The magnetic induction at a point inside the solenoid along the axis is (mu0 = 4pi × 10^-7 Wb/ A.m)
A. pi × 10^-5T
B. 2pi × 10^-5T
C. 3pi × 10^-5T
D. 4pi × 10^-5T