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Electromagnetic Induction — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsElectromagnetic Induction1 Mark
Question

The current in a coil changes from 4 ampere to zero in 0.1 s. If the average e.m.f. induced is 100 volt, what is the self inductance of the coil

(a) 2.5 H

(b) 25 H

(c) 400 H

(d) 40 H

✓

Answer

(a) 2.5 H

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