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For the process of electrolysis, we require:

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For the process of electrolysis, we require: Answer: DC supply

Electrolysis requires direct current (DC) because the constant direction of current causes positive and negative ions to move toward their respective electrodes, producing the required chemical reactions.

Question context

This question is part of ⚡ Electrical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the PTS Pakistan Testing Service preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.