Question

Which of the following are advantages of AC over DC ?

• A. Easily stepped up and down for long transmission with fairly low loss
• B. Easy to generate with AC Generator/motor from rotary sources (e.g. turbines)
• C. Easy to make powerful, reliable motors (induction type)
• D. all of the above

Answer 1

The correct option is D all of the above

Solution:-

Advantages of AC over DC

1) AC is cheaper to generate than DC.

2) Value of magnitude of ac can be decreased easily without loss of excess of energy by using choke wire.

3) AC can be converted easily intoo dc.

4) AC generators have higher efficiency than DC.

5) Wide range of voltages are obtained by using transformers.

6) ACs have been shown to be more safe to humans as compared to DC.