A Long Solenoid of Radius 3 Cm Has 1100 Turns $\times$

Multiple Choice

A long solenoid of radius 3 cm has 1100 turns per m.If the solenoid wire carries a current of 1.5 A,then calculate the magnetic field inside the solenoid.

A) 2.1 $\times$ 10^-3 T
B) 1.0 $\times$ 10^-3 T
C) 1.7 $\times$ 10^-4 T
D) 7.0 $\times$ 10^-2 T
E) none of the above