1.

Why is the use of a.c. voltage preferred over d.c. voltage? Give two reasons

Answer»

Following are the advantages of AC voltage over DC voltage:

1. AC voltages have a lesser loss in the long transmission lines compared to that in DC voltage.

2.AC voltages can be easily changed using transformers.

3.AC generators have higher efficiency than DC generator and lower maintenance requirements. Also, the AC is cheaper than the DC.

4.Also AC currents appliances are safer than the DC ones.



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