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प्रश्न
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 ____________.
पर्याय
zero
5 H
5000 H
5 mH
MCQ
रिकाम्या जागा भरा
उत्तर
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"`
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