Question

The value of magnetic induction will be minimum at a point due to a small current carrying conductor when angle between element and line joining point and centre of element is ____________.

Options

• 90°

• 180°

• 0°

• both 180° and 0°

Answer 1

The value of magnetic induction will be minimum at a point due to a small current carrying conductor when angle between element and line joining point and centre of element is both 180° and 0°.

Explanation:

`"dB" = mu_0/(4pi) xx (Idlsintheta)/r^2`