Question

Magnetic intensity is given by ______.

Options

• `vec"B"/mu_0 - vec"M"`

• `vec"B"/mu_0^3 - vec"M"`

• `(2vec"B")/mu_0 - vec"M"`

• `vec"B"/mu_0^2 - vec"M"`

Answer 1

Magnetic intensity is given by `underline(vec"B"/mu_0 - vec"M")`.

Explanation:

When a magnetic field is transferred through non-zero magnetised materials, it generates a field that adds to the internal field. As a result, it's easier to coin the word "magnetic Intensity" (H), which has the same dimensions as M and is measured in Am^-1.

In this way we can find total magnetic field given by `vec"B" = mu_0(vec"H" + vec"M")`.