SI Unit of Potential Difference
Potential difference, commonly referred to as voltage, quantifies the difference in electric potential energy per unit charge between two points in an electric field or circuit. It is the driving force that causes electric current to flow.
Understanding the standard units helps identify the correct answer:
- Volt (V): The SI unit for potential difference. It is defined as the potential difference across a conductor when one ampere of current passing through it dissipates one watt of power. The relationship is given by \(V = \frac{W}{Q}\), where \(V\) is potential difference in Volts, \(W\) is work in Joules, and \(Q\) is charge in Coulombs.
- Ampere (A): The SI unit for electric current, representing the rate of flow of charge (\(1 A = 1 C/s\)).
- Coulomb (C): The SI unit for electric charge.
- Tesla (T): The SI unit for magnetic flux density.
Based on these definitions, the SI unit for potential difference is the Volt.
Similar Questions
- _____ electrons flow every second in ten amperes of current.
- One Coulomb charge is equal to the charge of about ______ electrons.
- A current of \(2\text{ A}\) is drawn by the filament of an electric bulb for \(2\text{ min}\). Find the amount of electric charge that flows through the circuit.
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