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PhysicsEMI/ACL-R circuitMedium2 minPYQ_2005

PhysicsMediumsingle choice

A coil of inductance $300 mH$ and resistance $2Ω$ is connected to a source of voltage 2V. The current reaches half of its steady state value in

Answer:

Solution:

$I = I_{\circ} (1 - e^{- \frac{R}{L} t})$ $0.693 = \frac{R}{L} t$ $t = \frac{.3 \times 0.693}{2} = 0.1 sec$

Stream:JEESubject:PhysicsTopic:EMI/ACSubtopic:L-R circuit

⏱ 2mℹ️ Source: PYQ_2005

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