A. volt
B. erg
C. ohm
D. joule
✅ The correct answer is option D.
The unit of energy in MKS system is joule. 1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter.
The unit of energy in MKS system is joule. 1 Joule (J) is the MKS unit of energy, equal to the force of one Newton acting through one meter.