The unit of electricity that does the work in a circuit is the watt. The watt is a measure of electrical power, which indicates how much energy is being used or produced in a circuit over time.
To understand this better, let’s break it down:
- Voltage (Volts): This is the potential difference in the circuit, representing the force that pushes electrical charges through the circuit.
- Current (Amperes): This measures the flow of electric charge in the circuit, indicating how many charges are moving through a point in the circuit per second.
- Power (Watts): This is calculated by multiplying voltage (V) by current (I). Mathematically, it is expressed as P = V × I. The watt gives a clear idea of how much work is being done in the circuit.
In summary, while voltage and current are essential components of a circuit, it is the watt that quantifies the work being done by converting electrical energy into another form, such as light in a bulb or mechanical energy in a motor.