What are the 3 formulas of electricity?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The three fundamental electrical formulas are:
- Ohm's Law: V = I × R (relating voltage, current, and resistance)
- Power formula: P = V × I (relating power, voltage, and current)
- Joule's Law: P = I² × R (relating power dissipation to current and resistance)
These formulas can be combined and rearranged to solve virtually any basic electrical circuit problem.
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