The electronics blog

  • Root Mean Square (RMS)

    Definition RMS is defined as the square root of the mean square. Why it’s useful An understanding of root mean square (RMS) is necessary when delving deeper into the science of voltage and frequency. RMS, in regards to electronics, gives us an easy way to do calculations with AC current. It lets us treat AC…

  • Capacitor impedance

    Impedance vs resistance Impedance is resistance + reactance. Resistance is the opposition to flow of current, and entails power loss, usually in the form of heat. Reactance is the opposition to alternating current flow due to inductance or capacitance, and does not entail power loss. Capacitors and inductors store energy for a certain amount of…