Series & Parallel Circuits (AQA GCSE Physics): Flashcards

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AC & DC
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Direct current (DC)

Current flowing in one direction at constant voltage

DC graph appearance

Horizontal line

Alternating current (AC)

Current that reverses direction at regular intervals

AC graph appearance

Alternates between positive and negative values

Benefit of AC for energy transmission

More efficient transfer; easy to transform P.D.

UK mains electricity frequency

50 Hz

UK mains electricity P.D.

230V

Voltage fluctuation range in UK mains

+230V and -230V

UK mains current direction changes per second

50 times per second

Oscilloscope function

Shows the pattern of an electrical current

Formula for frequency

f=1tf = \frac{1}{t}

Variable tt in frequency formula

Time of one cycle

Explore AQA GCSE Physics Revision Notes by Topics

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Series & Parallel Circuits

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Current, Potential Difference & Resistance

Series & Parallel Circuits

Energy Transfers

Static Electricity

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Current, Potential Difference & Resistance

Series & Parallel Circuits

Energy Transfers

Static Electricity

Explore AQA GCSE Physics Exam Questions by Topics

Current, Potential Difference & Resistance

Series & Parallel Circuits

Energy Transfers

Static Electricity

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