👉 Previous Lecture (L25): Inductor Basics and Energy Storage
https://youtu.be/T9GXTNuGy3c
👉 Next Lecture: Inductor De-energization (Current Decay)
https://youtu.be/VZiZgniwoqg
In this lecture (L26), the ENERGIZATION of an inductor in an RL
circuit is derived step by step.
The lecture explains why current through an inductor does not
increase instantaneously when a DC source is applied.
Using Kirchhoff’s Voltage Law, the governing differential equation
is formed and solved to obtain the standard exponential current
growth expression.
Special emphasis is given to understanding the time constant of
an RL circuit and the physical interpretation of magnetic energy
build-up.
📌 Topics covered in this lecture:
• RL circuit during energization
• Application of KVL
• Formation of differential equation
• Derivation of current growth equation
• Time constant of RL circuit
• Physical meaning of current rise
• One solved numerical example
🎓 This lecture is useful for:
• B.Tech / B.E. first-year students
• NEP-based Basic Electrical Engineering courses
• Understanding RL transient behaviour
• Preparation for control and signal circuits
• Exam-oriented concept clarity
📚 Playlist: Basic Electrical Engineering – Complete Course
#BasicElectricalEngineering #InductorEnergization #RLTransient #ElectricalEngineering #BEE #NEP2020
