A soft-iron-cored solenoid of length has turns and carries a steady current of

PHYSICS · Single correct · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

A soft-iron-cored solenoid of length

0.40\,\text{m}

has

2000

turns and carries a steady current of

1.0\,\text{A}

. If the relative permeability of the core is

\mu_r = 500

, determine the magnetic field inside the core of the solenoid. (a)

6.3\,\text{T}

(b)

3.1\,\text{T}

(c)

31\,\text{T}

(d)

0.31\,\text{T}