Question

A wire is wound on a long rod of material of relative permeability to make a solenoid if the current through the wire is 5a and number of turns per unit

Answer 1

A wire is wound on a long rod of material of relative permeability to make a solenoid if the current through the wire is 5a and number of turns per unit

Answer 2

"Given:

µr= 4000

I = 5A

N = 4000

Solution:

The magnetic field inside the solenoid is given by;

B= $\mu nI$

Where, $\mu\quad is\quad the\quad product \quad of \quad \mu_0 and \mu_r (\mu_0= 4\pi \times 10^{-7}T m/A)$

By substituting the values,

B = $4000 \times 4\pi \times 10^{-7}T \times 4000 \times 5$

= 100.531 T

Hence, the magnetic field inside the solenoid is 100.531 T

The amount of concentration a material is able to take is called permeability. It is a dimensionless property."