EMI + SHM Combined! | Capacitor Coupled Pendulum | SBT EMI QNO 43 | JEE Advanced 2026

EMI + SHM Combined! | Capacitor Coupled Pendulum | SBT EMI QNO 43 | JEE Advanced 2026 In this video, we solve a brilliant Electromagnetic Induction (EMI) problem from the SBT book — a true JEE Advanced level concept builder. A conducting rod oscillates like a pendulum in a magnetic field while connected to a capacitor through a circular conducting arc. The system beautifully combines: ✔ Simple Harmonic Motion ✔ Motional EMF ✔ Capacitor charging dynamics ✔ Magnetic force coupling ✔ Energy exchange between mechanical and electrical systems We derive: 🔹 The equation of motion for small oscillations 🔹 The expression for θ(t) 🔹 The effective angular frequency of oscillation 🔹 What happens when the capacitor is replaced by a resistor When resistance is introduced, the system no longer remains purely oscillatory — we qualitatively analyze the resulting motion and energy dissipation. This is a must-do question for students preparing for JEE Advanced 2026 Physics. If you understand this problem fully, your EMI concepts will become extremely strong. 🎯 Concepts Covered Motional EMF in oscillating rod Capacitor in dynamic magnetic system Coupled mechanical-electrical oscillations Effective restoring torque Damped motion (qualitative case with resistor) Small angle approximation #jeeadvancedphysics #jee2026 #sbtsolutions #sbtphysics #electromagneticinduction #emi #motionalemf #SBTProblems #jeephysics #iitpreparation #advancedphysics #physicsconcepts #magneticfield #ConicalPendulum #engineeringentrance