Question

An e.m.f. of 10 volt is produced by a self inductance when the current changes at a steady rate from 6 A to 4 A in 1 millisecond. The value of self inductance is ____________.

Options

• zero

• 5 H

• 5000 H

• 5 mH

Answer 1

An e.m.f. of 10 volt is produced by a self inductance when the current changes at a steady rate from 6 A to 4 A in 1 millisecond. The value of self inductance is 5 mH.

Explanation:

`"L" = "e"/((("dI")/("dt")))`

` = 10/((((6 - 4))/10^-3))`

` = 5/1 xx 10^-3  "H"`

` = 5  "mH"`