Power Charge Voltage Equation

Electric power like mechanical power is the rate of doing work measured in watts and represented by the letter p the term wattage is used colloquially to mean electric power in watts the electric power in watts produced by an electric current i consisting of a charge of q coulombs every t seconds passing through an electric potential difference of v is.

Power charge voltage equation. The rearranged formula means we can define one volt as one. Energy transferred 120 2 240 j this equation can be rearranged to v e q. Using the coulomb avoids needing to use this large number in calculations. One coulomb equals the negative of the charge of 6 24 x 10 18 electrons.

The equation v ir means that the potential difference or voltage across a resistor can be found by multiplying its resistance by the current flowing through it. 1 watt means that 1 joule of energy is transformed in one second. In equations charge is represented by q or q and has the si unit symbol c. Voltage is the energy e per charge q voltage is measured in volts v which is defined as one joule per coulomb voltage can be defined in base units as kgm 2 s 3 a 1.

Power p is the rate at which energy is transformed in a device it is measure in watts w. Electrical current is the rate of flow of this charge in a circuit. Electric power calculator calculation general basic electrical formulas mathematical voltage electrical equation formula for power calculating energy work power watts calculator equation power law current charge resistance converter ohm s law and power law power formulae formulas understandimg general electrical pie chart two different equations to calculate power electricas ohms law audio. So voltage is energy transferred divided by charge.