Which is better, AC or DC?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Neither AC (alternating current) nor DC (direct current) is universally "better"—each has specific advantages:
AC advantages:
- Easily transformed to different voltages using transformers
- Efficiently transmitted over long distances with minimal loss
- Standard for power grids and household electricity
DC advantages:
- More efficient for electronic devices
- Better for battery storage and renewable energy systems
- Provides stable, constant voltage for sensitive electronics
- No freuency-related losses
Modern systems often use both: AC for transmission and distribution, then convert to DC for electronic devices. The trend toward renewable energy and electric vehicles is increasing DC usage.
Suggested Q&A
General · Class 12- GeneralClass 12Electric Field at Centre of Ring with Non-Uniform Charge Distribution. Four quadrants carry linear charge densities: +2λ, −2λ, +λ, −λ. Find electric field at centre.
- GeneralClass 12P°(hexane) = 408 Torr, P°(heptane) = 141 Torr. x(hexane) = 0.300. Find Y₆ and Y₇.
- GeneralClass 122N₂O₅(g) → 4NO₂(g) + O₂(g). Initial P = 50 mmHg; P at 30 min = 87.5 mmHg. Find P at 60 min.
- GeneralClass 12What is the difference between psychosis and neurosis?
- GeneralClass 12What is the difference between prism and a pyramid?
- GeneralClass 12What is the difference between phrase and clause?