Question

The space within a current carrying toroid is filled with a m metal of susceptibility 16.5 x 10^-6. The percentage increase in the magnetic field B is ____________.

Options

• 1.65 x 10^-3

• 165 x 10^-3

• 1.65 x 10^-4

• 165 x 10⁵

Answer 1

The space within a current carrying toroid is filled with a m metal of susceptibility 16.5 x 10^-6. The percentage increase in the magnetic field B is 1.65 x 10^-3.

Explanation:

% increase in magnetic field

`= "B" - "B"_0/"B"_0 xx 100`

` = (mu_0 chi  "H" xx 100)/(mu_0  "H")`

`= chi xx 100`

` = 16.5 xx 10^-6 xx 100`

` = 1.65 xx 10^-3`