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In a tangent galvanometer , a small co...

In a tangent galvanometer , a small compass needle is palced at the centre of the coil . Why it is done so ?

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To understand why a small compass needle is placed at the center of a tangent galvanometer, we can break down the reasoning into a series of logical steps: ### Step-by-Step Solution: 1. **Understanding the Tangent Galvanometer**: A tangent galvanometer consists of a circular coil of wire through which an electric current flows. When current passes through the coil, it generates a magnetic field around it. 2. **Magnetic Field Due to the Coil**: ...
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