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JEE Main20209 Jan 2020Morning ShiftPhysicsElectromagnetic InductionActual

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

Correct answer

0

Step-by-step solution

100 = L 0.25 0.025 × 10 3 ∴ L = 100 × 10 - 4 H = 10   m H

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