Physics 9702 · AS & A Level · Characteristics of alternating currents

Characteristics of alternating currents — practice question

In many electrical-energy distribution systems, transmission is carried out with alternating current at high voltages.
(a)[2]

Suggest and explain one advantage of using alternating voltages.

(b)[2]

Suggest and explain one advantage of using high voltages.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: Transformers provide an efficient way to change voltage for consumers.

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