Question

Electric power is transmitted over long distances through conducting wires at high voltage because

• A. High voltage travels faster
• B. Power loss is large
• C. Power loss is less
• D. Generator produced electrical energy at a very high voltage

Answer 1

Answer: (C)

Power loss is less

Answer 2

Power loss in transmission

$P_{L} = \frac{P^{2}R}{V^{2}}$ ⇒ $P_{L} \propto \frac{1}{V^{2}}$