The current passing through a choke coil of 5H is decreasing at the rate of 2 As –1 . The…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
The current passing through a choke coil of 5H is decreasing at the rate of 2 As–1. The e.m.f. developed across the coil is
- – 10V
- + 10V
- + 2.5 V
- –2.5 V
Answer
(B) + 10V
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