CAIE IGCSE Physics 4.5.6.4 Use of Transformers in High Voltage Questions

Learn why power stations use step-up transformers before transmitting electricity over long distances.

Exam points

identify why a step-up transformer is used before long-distance power transmission
relate increased transmission voltage to reduced current and lower energy loss
distinguish transformer stages used in electrical power distribution

[Maximum number: 1]

Transformers are used in the transmission of electrical power to houses.
Which type of transformer is used at the power station prior to connection to the power lines and which type is used prior to delivery to the houses?

power station

before houses

step-down

step-up

step-down

step-up

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CAIE IGCSE Physics 4.5.6.4 Use of Transformers in High Voltage Questions question 1