Save guides, add subjects and pick up where you left off with your BBC account. Variable resistors have many practical applications including volume controls, eg on a radio, and speed controls, eg ...

increases when components, for example a lamp, are added to a circuit in series. Potential difference close potential difference (V)The amount of energy transferred by each unit of charge passing ...

Any RF circuit application covering a narrow frequency ... and any load reactance that could be shunt capacitance or series inductance. When these factors are known, the computed values can ...

The actuator of the 3AH4-series circuit-breaker is designed for up to 120,000 switching cycles over its entire life cycle. The circuit-breakers are thus also suitable for other areas of application ...