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To locate null point, deflection battery...

To locate null point, deflection battery key `K_(1)` is pressed before the galvanometer key `K_(2)`. Explain why?

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To locate the null point in an experiment involving a galvanometer, it is crucial to press the deflection battery key \( K_1 \) before the galvanometer key \( K_2 \). Here’s a step-by-step explanation of why this sequence is important: ### Step-by-Step Solution: 1. **Understanding the Circuit Setup**: - The circuit consists of a battery connected via key \( K_1 \) and a galvanometer connected via key \( K_2 \). The galvanometer is used to detect current flow. 2. **Pressing Key \( K_1 \)**: ...
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