Alternating Current (Grade 12 NSC Matric Physical Sciences): Flashcards

Electricity that flows in only one direction

Electricity that constantly switches direction

50 Hz

Circle with a wavy line inside

Easy to step up or down using transformers

High voltage & low current = minimal energy loss over distance

Value of current or voltage at a specific moment

Equivalent DC value that produces same power output

$I_{rms} = \frac{I_{max}}{\sqrt{2}}$

$P_{av} = I_{rms} \times V_{rms}$