Multiple choice general knowledge science & technology

The unit of energy in MKS system ?

  1. Volt

  2. Erg

  3. Ohm

  4. Joule
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D Correct answer
Explanation

The MKS (meter-kilogram-second) system uses the Joule as the unit of energy. Joule = kg × m²/s² in MKS units. Volt is for electric potential, Erg is the CGS unit of energy, and Ohm is for electrical resistance.

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