Electrical Engineering MCQs on Power Transmission
With an increase in supply frequency the skin effect:
- Increases
- Decreases
- Remains unchanged
- None of these
Correct answer: 1. Increases
Explanation: Skin effect depends on 4 factors:
- Nature of material: It depends on type/nature of material
- Diameter of wire: It increases with the diameter of wire
- Frequency: It increases with the increase in frequency
- Shape of wire: It is less for stranded conductor than solid conductor