Lec_08 Wheatstone Bridge Fully Explained In Urdu/Hindi

In this video lecture, we explore the **Wheatstone Bridge**, a fundamental electrical circuit used to measure unknown resistances with high precision. The lecture covers the working principles of the Wheatstone Bridge, how it achieves a balance between its resistive elements, and the conditions required for **bridge balance**. We discuss the relationship between the four resistors in the circuit and how the unknown resistance can be calculated when the bridge is balanced.

You will learn about **null detection methods** using **galvanometers** and how small changes in resistance can be detected using the bridge. The lecture also introduces **applications of the Wheatstone Bridge** in various fields, such as **strain gauge measurements**, **sensor calibration**, and **temperature sensing**.

Additionally, we explore variations of the Wheatstone Bridge, including the **Kelvin Bridge** for low-resistance measurements and the **Maxwell Bridge** for inductance measurements. By the end of this lecture, you will have a solid understanding of the Wheatstone Bridge's operation, its practical applications, and its importance in precise electrical measurements.

**Hashtags:**

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