Induced Potential, Transformers & the National Grid (AQA GCSE Physics): Flashcards
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Practise the cards
13 cards from this deck
Alternative name for an electric generator
Alternative name for an electric generator
Dynamo
Two main components of an electric generator
Two main components of an electric generator
Coil of wire and two permanent magnets
What drives the coil in a generator
What drives the coil in a generator
A turbine (driven by wind)
What the rotating coil cuts through
What the rotating coil cuts through
Magnetic field lines
What is induced across the rotating coil
What is induced across the rotating coil
Potential difference (voltage)
Type of current in generator with complete circuit
Type of current in generator with complete circuit
Alternating current (AC)
Why AC occurs in a generator
Why AC occurs in a generator
Direction of current changes as coil rotates
Device that produces AC
Device that produces AC
Alternator
Component needed to produce DC in a generator
Component needed to produce DC in a generator
Split ring commutator
Function of the commutator
Function of the commutator
Reverses the direction of current
How often commutator reverses current
How often commutator reverses current
Every half-rotation
Type of current a dynamo produces
Type of current a dynamo produces
Direct current (DC)
Purpose of commutator reversing current
Purpose of commutator reversing current
Ensures current always flows in same direction