State Faraday's law of electromagnetic induction and mention the utility of Lenz's law. Obtain an expression for self-inductance of a coil in terms of its geometry and permeability of the medium.

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TextFaraday's Laws of Electromagnetic InductionLenz's Law for Direction of Induced CurrentSelf Inductance and Its CoefficientResonance in Series LCR CircuitCBSE PYQ

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An inductor, a capacitor and a resistor are connected in series with an ac source v = vm sin ωt. Derive an expression for the average power dissipated in the circuit. Also obtain the expression for the resonant frequency of the circuit.

TextResonance in Series LCR CircuitPower in AC Circuit

Assertion (A) : Lenz's law is a consequence of the law of conservation of energy. Reason (R) : There is no power loss in an ideal inductor.

Assertion-Reason