Question:
Power P is to be delivered to a device via transmission cables having resistance Rc. If V is the voltage across R and I the current through it, find the power wasted and how can it be reduced.
Solution:
Power consumed by the transmission lines is given as P = i2Rc
Where Rc is the resistance of connecting cables
Power is given as P = VI
The transmission of power takes places either during low voltage and high current or during high voltage and low current.