Liquid dielectrics such as transformer oil are commonly used for insulation and cooling in high-voltage equipment. Their practical use depends on factors such as purity, moisture, temperature, and electrode configuration.
Liquid are generally used as insulating material up to voltage stresses of about
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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.