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Technically, VArs are the product of the rms voltage and current, or the apparent power, multiplied by the sine of the phase angle between the voltage and the current. Or in mathematical terms, the reactive power Q, (measured in units of volt-amperes reactive or VAr), is given by. Q = Vrms * Irms * sin(Ï)
Static electricity is also a form of electricity which is measured in volts. Voltage is the electric potential between two different points. It could also be used to refer to the difference in electric potential energy of a unit test charge transported between two points. A voltage may represent a source of energy or it could represent lost, used or stored energy. Voltage is the pressure of pushing electrons along in a circuit.