The current through a coil of self-inductance L = 2 mH is given by i = t 2 e -t at time…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
The current through a coil of self-inductance L = 2 mH is given by i = t2e-t at time t. How long it will take to make the emf zero?
- 1 s
- 2 s
- 3 s
- 4 s
Answer
(B) 2 s
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