Alternating current and direct current

2 marks · Easy

State whether a solar panel and the mains supply provide direct current (d.c.) or alternating current (a.c.).

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Also accept: Solar panel: d.c.; mains supply: a.c.

Common mistakes: Confusing which supplies a.c. or d.c.

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Marking points

B1 · 1 mark · Correctly identifies solar panel as d.c.

B1 · 1 mark · Correctly identifies mains supply as a.c.

Worked solution

A solar panel provides direct current (d.c.). The mains supply provides alternating current (a.c.).