PREVIOUSLY ASKED IN:
WBPSC Miscellaneous Preliminary 2023
Answer
AC
Explanation
The brilliant inventor Nikola Tesla developed the modern Alternating Current (AC) electrical supply system. His AC induction motor and related patents revolutionized how electricity was generated and transmitted over long distances, outcompeting Thomas Edison's Direct Current (DC) system during the historic 'War of the Currents'.
Key Points
- > Nikola Tesla championed the Alternating Current (AC) system.
- > Thomas Edison strongly advocated for Direct Current (DC).
- > AC allows efficient long-distance power transmission via transformers.
- > He invented the famous Tesla Coil used in radio technology.
- > The SI unit of magnetic flux density is named 'Tesla' (T) in his honor.
- > Static electricity studies are credited to early philosophers and Benjamin Franklin.
- > Household electricity globally is primarily AC.
Additional Information
Key Electrical Inventions
| Invention | Inventor | Year |
|---|---|---|
| AC Power System | Nikola Tesla | 1888 |
| Lightbulb, DC Power | Thomas Edison | 1879 |
| Electric Battery | Alessandro Volta | 1800 |
| Electric Generator | Michael Faraday | 1831 |
Memory Tips
- Remember the historic War of Currents: Edison backed DC (Direct Current), while Tesla backed AC (Alternating Current). Tesla's AC won for long-distance travel.