Series & Parallel Circuits (AQA GCSE Physics Combined Science): Flashcards
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Practise the cards
15 cards from this deck
What is direct current (DC)?
What is direct current (DC)?
Electric current that flows in one direction at constant voltage
DC graph characteristic
DC graph characteristic
Horizontal line
What is alternating current (AC)?
What is alternating current (AC)?
Electric current that reverses direction at regular intervals
AC graph characteristic
AC graph characteristic
Alternates between positive and negative values
Main benefit of AC
Main benefit of AC
Efficient for long-distance energy transmission
Why AC efficient for transmission
Why AC efficient for transmission
Easy to use transformers to change P.D.
UK mains electricity frequency
UK mains electricity frequency
UK mains electricity P.D.
UK mains electricity P.D.
UK mains voltage fluctuation range
UK mains voltage fluctuation range
Between and
UK current direction changes per second
UK current direction changes per second
50 times
Oscilloscope function
Oscilloscope function
Used to see the pattern of an electrical current
Formula for frequency
Formula for frequency
Variable in frequency formula
Variable in frequency formula
Time of one cycle
DC supply current over time
DC supply current over time
Constant over time
AC supply current over time
AC supply current over time
Changes direction periodically