Question

Magnetic flux of 12 microweber is linked with a coil. When current of 3 mA flows through it, the self inductance of the coil is ____________.

Options

• 4 kH

• 4 mH

• 4 µH

• 4 H

Answer 1

Magnetic flux of 12 microweber is linked with a coil. When current of 3 mA flows through it, the self inductance of the coil is 4 mH.

Explanation:

`"L" = phi/"I"`

`= (12 xx 10^-6)/(3 xx 10^-3)`

`= 4 xx 10^-3 "H"`

`= 4  "mH"`