Electromagnetic induction #7 (inductive reactance मराठी मध्ये)

🔌 Why Does an Inductor Resist AC but Allow DC? | Inductive Reactance Explained
In this video, we answer a very important and commonly asked question in physics and electronics:
👉 Why does an inductor allow DC current but resist AC current?
To understand this, we connect fundamental laws of electromagnetism—Faraday’s Law and Lenz’s Law—with the behavior of inductors in AC and DC circuits. The explanation starts from the absolute basics, making it ideal for beginners.
🔹 What You Will Learn in This Video
✔ What happens when DC is applied to an inductor
✔ Why an inductor initially opposes DC but later allows it
✔ Why AC current is always opposed by an inductor
✔ Meaning of inductive reactance
✔ Derivation and physical meaning of the formula
✔ Difference between AC and DC behavior of inductors
✔ Real-life and circuit applications
🔹 Key Concepts Explained Simply
Self-induction and back emf
Role of Lenz’s Law in opposing change in current
Behavior of inductors at:
Zero frequency (DC)
Finite frequency (AC)
Why inductive reactance becomes zero for DC
Why higher AC frequency means more opposition
🔹 Important Formula Covered
📌 Inductive Reactance
Where:
� = Inductive reactance (Ohm)
� = Frequency of AC supply (Hz)
� = Inductance (Henry)
🔹 Applications Discussed
Choke coils in power supplies
AC filters
Radio and tuning circuits
SMPS and transformers
Noise reduction in electronic circuits
🔹 Who Should Watch This Video?
✔ School and college students
✔ Diploma and engineering students
✔ Beginners in electronics
✔ Competitive exam aspirants
✔ Anyone learning AC circuit fundamentals
🔹 Related Videos in This Series
▶ Faraday’s Law of Electromagnetic Induction
▶ Lenz’s Law Explained
▶ Self Inductance
▶ Mutual Inductance
▶ Inductors and Their Working
📌 Watch till the end to build a strong conceptual foundation in AC circuits.
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Видео Electromagnetic induction #7 (inductive reactance मराठी मध्ये) канала Tech_New_ Stuff