Chapter: Physics· JEE

When current in a coil changes from 5 A to 2 A in 0.1 s, an average voltage of 50 V is produced

When current in a coil changes from 5 A to 2 A in 0.1 s, an average voltage of 50 V is produced. The self-inductance of the coil is:

Doubtly Asked 2 Jun 2021 Student doubt jeemain electromagnetic-induction pyq Save WhatsApp Report

1 answer

Best answer

Correct option is 2) 1.67H

Explaination

EMF = \(L × \frac{di}{dt}\)

50 = L ×\(\frac{ (5-2)}{0.1}\) = L × 30

L = \(\frac{5}{3}\) = 1.67

Doubtly · 2 Jun 2021 Report

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