Why is Electricity Transmitted at High Voltage?

Why is electricity transmitted at high voltage?

• To reduce the voltage

• To make it safer

• To reduce power loss

• To increase the current

What is the current flowing down the transmission line when the power station is giving out 500 kW at 25 KV?

• 2173 amps

• 10 amps

• 20 amps

• 1.81 amps

How much power is lost when the resistance is 10 Ohms and the current is 1.81 amps?

• 500 Kow

• 275 KV

• 47.2 megawatt

• 32.7 Watts

What happens to the current when the voltage is stepped down to 230 Volts for transmission?

• It becomes zero

• It increases significantly

• It remains the same

• It decreases significantly

• 275 KV

• 500 kW

• 47.2 megawatt

• 32.7 Watts