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Voltage measures the electrical potential between two parts of an electrical circuit. Also called electromotive force. Voltage provides the 'pressure' to drive electrons round a circuit.

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What is the unit of measure for electtric potential?

The unit of measure for electric potential is the volt, symbolized as "V". It represents the difference in electric potential energy between two points in an electrical field.


What is the difference between watts and volt-amps?

Watts measure real power in an electrical circuit, while volt-amps measure apparent power, which includes both real and reactive power. Watts represent actual energy consumed or produced, while volt-amps account for the total power flowing in a circuit.


Is it true that volt amps are the same as watts?

No, volt-amps (VA) and watts (W) are not the same. Watts measure real power in an electrical circuit, while volt-amps represent the apparent power, which includes both real power and reactive power.


What are the standard units used to measure magnitude in physics?

The standard units used to measure magnitude in physics are the Newton for force, the Joule for energy, the Volt for electric potential, and the Tesla for magnetic field strength.


What is the difference between volt-amps and watts, and how do they affect the power consumption of electrical devices?

Volt-amps and watts both measure power, but they are calculated differently. Volt-amps represent the apparent power in an electrical circuit, while watts measure the actual power consumed by a device. The difference lies in the power factor, which accounts for the efficiency of the device in converting electrical energy into useful work. Devices with a lower power factor will have a higher volt-amp rating compared to their watt rating. This affects power consumption because utilities charge based on volt-amps, so devices with a lower power factor may cost more to operate.