TOPIC 21 · A LEVEL

Alternating currents

Read sinusoidal waveforms, connect peak and rms values, and follow electrical energy through transformers, rectifiers and smoothing circuits.

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TOPIC 21

Alternating currents

Describe sinusoidal alternating quantities, r.m.s. values, transformers, rectification and smoothing. Accurate waveform diagrams make timing, phase, rms power and output processing easier to interpret.

21.1

Alternating currents

Describe sinusoidal alternating quantities, r.m.s. values, transformers, rectification and smoothing.

AVAILABLE

01Alternating current and voltage→
02Sinusoidal equations and phase→
03Root-mean-square values→
04Power in resistive a.c. circuits→
05Transformers→
06Rectification→
07Smoothing circuits→

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