What is Power ?

 Power, in the context of electricity, is the rate at which electrical energy is transferred or converted from one form to another. It is typically measured in units of watts (W).

Power can be calculated using the following formula:

$𝑃=𝑉𝐼$

Where:

• $𝑃$ is the power in watts (W),
• $𝑉$ is the voltage in volts (V),
• $𝐼$ is the current in amperes (A).

Alternatively, power can also be calculated using Ohm's law:

$𝑃={𝐼}^2𝑅$

or

$𝑃=\frac{{𝑉}^2}{𝑅}$

Where:

• $𝑅$ is the resistance in ohms ($\mathrm{\Omega }$).

These formulas illustrate that power can be calculated based on the voltage, current, and resistance in a circuit. Power represents the rate at which electrical energy is either supplied to or consumed by a device or component in the circuit.

In simpler terms, power measures how quickly work can be done with electricity. For example, a higher power rating indicates that a device can perform work more quickly or handle larger loads, while a lower power rating indicates the opposite.

Power is a fundamental concept in electricity and is used to quantify the performance and efficiency of electrical devices and systems.