Alternating-current circuit theory
R. Lowe, D. Nave · 1973
This chapter opens with a brief review of the basic principles of alternating currents before applying those principles to circuit theory. An alternating voltage of sinusoidal waveform as normally used can be expressed in the form: v= V M sinωt ]] <![CDATA[$$ v = {V_M}\sin \omega t $$ where ν is the value of the voltage at time t, VM is the maximum or peak value, ω is the angular frequency in radians per second, and is equal to 2πf where f is the frequency in Hertz (symbol Hz).