🔌 Transformer – Ek Magic Box Jo Voltage Ko Badal Deta Hai!

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🟢 What is a Transformer?

A transformer ek electrical device hota hai jo AC (alternating current) voltage ko increase ya decrease karta hai.

💡 Types:

• Step-Up Transformer: Voltage badhata hai
• Step-Down Transformer: Voltage kam karta hai

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🧪 Principle – Magic Behind Transformer

Transformer mutual induction pe kaam karta hai. Matlab:

Jab ek coil ka magnetic flux change hota hai, toh uske paas wali coil mein EMF (voltage) induce ho jata hai.

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🏗️ Construction – Iska Internal Design

1. Iron core: Soft laminated sheets se bana hota hai.
2. Two coils:
   • Primary Coil (P₁, P₂)
   • Secondary Coil (S₁, S₂)

👉 Dono coils ek hi iron core pe wound hoti hain but alag-alag insulate hoti hain.

3. Input Side (AC source) → Primary coil
4. Output Side (Load resistance R) → Secondary coil

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⚙️ Working – Kaise Kaam Karta Hai Transformer

• Jab AC current primary coil mein jata hai, toh alternating magnetic flux produce hota hai.
• Ye flux iron core ke through secondary coil tak pahuchta hai.
• Waha EMF generate hoti hai — thanks to Faraday’s Law.

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