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Electromagnetism (The motor effect :person_doing_cartwheel::skin-tone-4:…
Electromagnetism
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Alternators :wavy_dash:
Ac generator
A coil spins in a uniform magnetic field. The induced potential difference is highest when the sides crosses the magnetic field lines (flat) and zero when the coils sides are parallel to the field lines (upright).
RULES: The faster the coil, the bigger the frequency and the bigger the peak value since it crosses the magnetic field lines at a faster rate. A bigger area and more turns and stringer magnet gives a bigger peak. If generator rotates faster there will be more, taller waves.
Dc generator
Has a split ring communicator instead of two slip rings Split ring commutator reconnects the coil every half turn when perpendicular.
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