Why AC systems are preferred over DC systems?

Transmitting electricity over AC links is more efficient, compared to DC transmission, up to a certain distance then DC transmission would be more efficient (hence, HVDC technologies are emerging!)

It is cost efficient. AC plant cost way less than equivalent output on DC.

AC is a better voltage and has better transmission

Ac systems are more flexible and easy to control

AC Preferrd Due to Transmishion less cost

AC transmission is preferred over DC transmission because the power loss is much less as compared to loss in DC.

In direct current DC, the electric charge (current) only flows in one direction. And in alternating current ac current changes direction periodically

It is easy to maintain and change the voltage of AC electricity for transmission and distribution. Plant cost for AC transmission (circuit breakers, transformers etc.) is much lower than the equivalent DC transmission. ... It is easier to convert AC to DC rather than the other way around.

1.We all know that we got ac supply in our homes and we got this supply by transmitting ac over long distances. AC can be transmitted using step up transformers but direct current or dc can not be transmitted by this method. 2.The ac is easy to generate than dc. 3.It is cheaper to generate ac than dc. 4.The ac generators have higher efficiency than dc. 5.The loss of energy during transmission is negligible for ac. 6.The ac can be easily converted into dc. 7.The variation of ac can easily be done using transformers either step up or step down. 8.The value or magnitude of ac can be decreased easily without loss of excess of energy. This can be done by using choke coil HVDC The advantage of HVDC is the ability to transmit large amounts of power over long distances with lower capital costs and with lower losses than AC. Depending on voltage level and construction details, losses are quoted as about 3% per 1000 km. ... In a number of applications HVDC is more effective than AC transmission.

All the household and indstrial systems are wired for AC rather than DC. It would be highly impractical to convert every equipment to DC.

First, there are less losses, secondly, we face the difficulty of energy transfer, so a lot of money is imposed for transfer