Electrical Engineering · Underground Cables
An underground cable has insulation with a relative permittivity of 2. If the insulating material is replaced by another material with a relative permittivity of 4, the capacitance of the cable will be:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Unchanged
- 2Quadrupled
- 3Doubled✓
- 4Halved
Correct answer
Doubled
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