Forced electromagnetic oscillations. Alternating current

Grade 11, section 2, lesson 3. Lesson 2: x(t)=Asin⁡(ωt)x(t) = A\sin(\omega t), ω=2πν\omega = 2\pi\nu. Section 1: 50 Hz AC, ν0=1/(2πLC)\nu_0 = 1/(2\pi\sqrt{LC}). Forced oscillations — the circuit is driven by an external EMF; at matching frequency — resonance.

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