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AC/DC

Physics: AQA GCSE Higher, topic 7.2.16

Electric Current - Direct and Alternating

There are two types of electric current.

Direct current (d.c)

Direct current (d.c)

  • The electric current flows in only one direction.
  • Batteries and cells are sources of direct current.
Alternating current (a.c)

Alternating current (a.c)

  • The electric current repeatedly changes direction.
  • In the UK, the electricity from the plug sockets is a source of alternating current.

Test yourself on AC/DC

  • Batteries and cells are sources of...

  • Which of these statements are features of direct current?

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