Question

Nikola Tesla used rotating magnetic fields to generate, transmit, and use AC (alternating current). Today alternating current has replaced direct current in most situations. What is the advantage of using AC power over DC power?

Answer 1

The advantage of using AC power over DC power is that the voltage can be increased/decreased easily by a transformer.

Answer 2

Step-by-step explanation:

The full form of AC is alternating current and DC is direct current. The DC current always flows in one direction while the AC current reverses direction periodically. The advantages of using AC power over DC power are as follows :

(1) The efficiency of AC power source is more as compared to DC power.

(2) AC power is easier to operate than DC power.

(3) Energy is not lost in AC power source.

(4) The power sources having DC current can be converted to AC suing rectifiers.

(5) With the help of a transformer, the voltage can be easily increased or decreased in AC power source.