A coil of inductance 1H and resistance 10 Ω is connected to a battery of emf 50 V…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
A coil of inductance 1H and resistance 10Ω is connected to a battery of emf 50 V (negligible internal resistance) at t = 0. The ratio of the rate at which magnetic energy is stared in the coil to the rate at which energy is supplied by the battery :
- At t = 0.1 sec is 0.74
- At t = 0.1 sec is 0.37
- Increases with time.
- Decreases with time.
Answer
(D) Decreases with time.
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