In a fluorescent lamp choke (a small transformer) 100 V of reverse voltage is produced when the choke…

In a fluorescent lamp choke (a small transformer) 100V of reverse voltage is produced when the choke current changes uniformly from 0.25A to 0 in a duration of 0.025ms . The self-inductance of the choke (in mH ) is estimated to be ________

Solution

100=L0.250.025×103
∴L=100×10-4H
=10 mH

Asked in: JEE Main 2020 (09 Jan Shift 1)

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