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MF means Multiplying Factor which is used to calculate your bill. Energy meters are generally designed to withstand continuously 440 Volts and a maximum of 60 A current. If customer's load is more than 60 A or supply voltage is higher than 440 Volts, Current and voltage transformers are used in metering circuit to restrict the current and ...
North American domestic analog (Ferraris disk) electricity meter. Electricity meter with transparent plastic case (Israel) An electricity meter, electric meter, electrical meter, energy meter, or kilowatt-hour meter is a device that measures the amount of electric energy consumed by a residence, a business, or an electrically powered device over a time interval.
A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units, which is the energy delivered by one kilowatt of power for one hour.
High-precision laboratory measurements of electrical quantities are used in experiments to determine fundamental physical properties such as the charge of the electron or the speed of light, and in the definition of the units for electrical measurements, with precision in some cases on the order of a few parts per million. Less precise ...
Position vector r is a point to calculate the electric field; r′ is a point in the charged object. Contrary to the strong analogy between (classical) gravitation and electrostatics, there are no "centre of charge" or "centre of electrostatic attraction" analogues. [citation needed] Electric transport
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An electrometer is an electrical instrument for measuring electric charge or electrical potential difference. [1] There are many different types, ranging from historical handmade mechanical instruments to high-precision electronic devices.