Servomotor? A  servomotor  is a  linear actuation that allows for precise control of angular or linear position, velocity and acceleration.It also requires a relati…

What is an Multimeter? A multimeter or a multitester, also known as a VOM (volt-ohm-milliammeter), is an electronic measuring instrument that combines several measur…

What is voltmeter? A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Analog voltmeters mov…

How does a ammeter work? An ammeter (from Ampere Meter) is a measuring instrument used to measure the current in a circuit. Electric currents are measured in amper…

How does a wattmeter work? The  wattmeter  is an instrument which is used for measuring the electric power of a circuit (or the supply rate of electrical energy ) …

What is a Tariff ? The rate at which electrical energy is supplied   to a consumer is known as tariff . Although tariff should include the total cost of producing …

Power Factor improvement Power Factor  The cosine of angle between voltage and curr ent  in an a.c. circuit is known as power factor. In an a.c. circuit, ther…

Circuit Breaker A circuit breaker is a piece of equipment which can (i) make or break a circuit either manually or by remote control under normal conditions . …