Welcome to the Quiz!

This quiz contains 8 questions from a mix of 1 subtopics.

Which type of current periodically reverses its direction?

Alternating current

Direct current

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When charge always flows around a circuit in the same direction, we call it:

Direct current

Alternating current

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True or false? Alternating current is caused by an alternating potential difference.

True

False

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Graph showing alternating current waveform over time with positive and negative peaks.

The above graph could be for:

(Select all that apply)

Direct current

Direct voltage

Alternating current

Alternating voltage

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2

Direct current is supplied by:

(Select all that apply)

The mains supply

Cells

Batteries

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All countries use alternating current as their mains supply.


In the UK, the mains supply has a frequency of Hz, and a voltage of V.

50
230

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The role of an oscilloscope is to:

Power circuits

Generate alternating current

Display how voltage changes with time

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Graph showing a constant voltage over time representing DC current.

Which type of current would be generated from the supply shown in the diagram above?

Alternating current 

Direct current

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