The current carrying capacity of cables in DC is more than that in AC mainly due to
- A. Absence of harmonics
- B. non -existence of any stability limit
- C. smaller dielectric loss
- D. absence of ripple
Answer: C. smaller dielectric loss
Explanation: In DC, there is absence of dielectric loss (ωCV² = 0), absence of skin effect (uniform current distribution), and no sheath losses, allowing a cable to carry higher current for the same permissible temperature rise.