Effect on the null point of increasing the potentiometer wire's length

The same question, asked 2 times: 20 Apr 2025 S2, 11 Apr 2026 S2. Every wording below, oldest first.

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Question 1
20 Apr 2025 S2
28 $If the length of the potentiometer wire is increased by keeping constant potential difference across the wire, then$
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Question 2
11 Apr 2026 S2
129 $In potentiometer experiment, null point is obtained at a particular point for a cell on potentiometer wire 'x' cm long. If length of potentiometer wire is increased by few cm without changing the cell, the balancing length will (Driving source is not changed)$
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Question 1