4.2.3.1 - Direct and alternating potential difference

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5 Terms

1
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what are the two types of electricity supplies?

  • Alternating current - AC

  • Direct current - DC

2
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Describe alternating current

The current is constantly changing direction. Produced due too alternating outages in which the positive and negative ends keep alternating

3
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Describe direct current.

current that is always flowing in the same direction

Created by direct voltage

4
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Describe the UK’s main electricity

An AC supply, with a. voltage of 230 V and a frequency of 50Hz (50 cycles per sec)

5
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what type of current do cells and batteries have?

Dc