What is w ATT and mva in electricity?

In electricity, "W" represents watts (W), which is the unit of power, indicating the rate at which energy is consumed or produced. "MVA" stands for megavolt-amperes, a unit of apparent power in an electrical system, combining both real power (measured in watts) and reactive power. While watts measure actual power used for work, MVA encompasses the total power flow, including the energy stored in magnetic and electric fields, making it crucial for understanding the capacity of electrical systems, especially in AC circuits.