Electric power cables carry electrical energy across long distances by means of high-voltage alternating current. What advantages are there in using a high voltage and in using an alternating current?
- Ahigh current is produced in the cable; the resistance of the cable is reduced
- Bhigh current is produced in the cable; the voltage can be changed using a transformer
- Cless energy is wasted in the cable; the resistance of the cable is reduced
- Dless energy is wasted in the cable; the voltage can be changed using a transformer