Power `P` is to be delivered to a device via transmission cables having resistance `R_(c)`. If `V` is the voltage across `R` and `I` the current through it , find the power wasted and how can it be reduced.

Explanation

The power consumption in transmission lines is given by `P=i^(2)R_(c)`, where `R_(C)` is the resistance of transmission lines. The power is given by
`P=VI`
The given power can be transmitted in two ways namely (i) at low voltage and high current or (ii) high voltage and low current. in power transmission at low voltage and high current more power is wasted as `Ppropi^(2)` wheareas power transmission at high voltage and low current facilitates the power transmission with minimal powre wastage.
The power wastage can be reduced by transmitting power at high voltage.