Multiple choice general knowledge science & technology

The unit of energy in MKS system is

  1. Volt

  2. Erg

  3. Ohm

  4. Joule
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D Correct answer
Explanation

The MKS (meter-kilogram-second) system uses joule as the standard unit for energy, work, and heat. One joule is defined as the work done by a force of one newton acting through a distance of one meter. Volt measures electric potential, erg is the CGS unit of energy, and ohm measures electrical resistance.

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