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What are the 3 main formulas of electricity?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

The three fundamental formulas of electricity are:

  1. Ohm's Law: V = I × R (Voltage = Current × Resistance)
  2. Power Formula: P = V × I (Power = Voltage × Current)
  3. Energy Formula: E = P × t (Energy = Power × Time)

These formulas form the foundation for understanding electrical circuits and are essential for calculating voltage, current, resistance, power consumption, and energy usage in any electrical system.

General · Class 12