Why AC instead of DC for Electric Power Transmission?

[ZedCar]

Homework Statement

Explain why A.C. is used instead of D.C. to transfer electrical power from the generating station to the consumer.

Homework Equations

The Attempt at a Solution

To reduce the energy lost in long distance transmission. To reduce costs involved in transferring electrical power over long distances.



Above is the answer which I provided though the teacher said it wasn't specific enough and my answer should have included something about

a) high voltage, low current
b) transformers need changing magnetic fields

Was wondering if anyone could help? Thanks very much

 

[Rajini]

look here useful for you.

https://www.physicsforums.com/showthread.php?t=83081

 

[ZedCar]

Thanks very much Rajini,

I'll take a look at that now.