JAMB - Physics (2002 - No. 40)
From the generating station to each substation power is transmitted at a very high voltage so as to reduce
hysteresis loss
eddy current loss
magnetic flux leakage
heating in the coils
Maelezo
Power is transmitted at very high voltages primarily to reduce heating in the coils(cables).
High Voltage: Lowers current, minimizing resistive (I\(^2\)R) losses, which cause heating.
Eddy Currents: While they can be a concern in certain applications, such as transformers, they are not the primary issue in high-voltage transmission.
High Voltage: Lowers current, minimizing resistive (I\(^2\)R) losses, which cause heating.
Eddy Currents: While they can be a concern in certain applications, such as transformers, they are not the primary issue in high-voltage transmission.