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About Us 

Welcome to Electronic FAQ – your go‑to space for simplifying the world of electronics!

We created this blog with a single mission: to make electronics easier to understand for everyone – from beginners taking their first steps with circuits to enthusiasts seeking practical solutions, tips, and explanations.

Here, you’ll find:

  • Step‑by‑step guides that break down complex concepts into plain language.

  • FAQs and troubleshooting help for common electronic components, devices, and projects.

  • Learning resources that bridge theory and hands‑on practice.

  • Project ideas and DIY experiments to spark curiosity and encourage innovation.

At Electronic FAQ, we believe electronics should be accessible, engaging, and fun. Our aim is to build a knowledge hub where learners, hobbyists, and professionals alike can find reliable answers and inspiration.

Thank you for visiting our blog – we hope it becomes a trusted part of your learning journey.

Stay curious. Keep building. Never stop exploring!

Would you like me to make two versions—one formal and professional (for credibility with students and professionals) and another casual and friendly (to connect with hobbyists and beginners)?

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What happens to the energy stored in an inductor carrying a current?

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Can the Energy Stored in an Inductor Be Used Practically? Applications, Benefits, and Real-World Examples. Why does an inductive load create sparking across contacts?  An inductor stores energy in the form of a magnetic field as long as current is flowing through it. As the current stops, the magnetic field began to collapse. Collapsing magnetic flux is also a rate of change of magnetic flux that will induce a large voltage spike (back EMF) across it. Energy stored in an Inductor:  Since this induced voltage is parallel to the inductor coil, it decays by converting it to heat across the coil resistance. During this process, the coil generates a magnetic field again due to the flow of decaying current through the coil, which results in electromagnetic interference during radio operation and sparking across open contacts. Adverse effects of stored energy in an inductor:  Can we put this back-EMF into use? Yes. Practical Use of Stored Energy in an Inductor:  Spark-ignit...
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Why are transformers rated in VA and not watts?

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Why Is Transformer Rating Given in VA? Understanding Power in Volt-Ampere versus watts, Power Factor, and Transformer Efficiency related to inductive load Real reason: Because the manufacturer of the transformer never knows where it is going to be used. Suppose a transformer of 100KVA feeds a resistive load; it will develop 100 kilowatts of power across the load because the power factor of the resistive load is unity. If the same transformer feeds an inductive load of power factor 0.5, then it will develop only 50 kilowatts of power across the load. Hence, if I want to rate a transformer in watts, then I need to know the power factor of the load, which is impossible. So, the transformer is rated in VA, KVA or MVA. A mug of beer analogy of Power Factor: FAQ Set: Q1: Why is transformer rating given in VA instead of watts? Transformer ratings are given in   VA (volt-amperes)   because transformers must handle   apparent power , which includes both real power (watts) and reac...
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