Which of the following pairs have different dimensions?

Options

A. Potential difference EMF, voltage
B. Pressure, stress, EMF, voltage
C. Heat, energy, work done
D. Dipole moment, electric flux, electric field

Answer

D

Explanation

Dipolemoment `p=qa` so its dimensions `[p]=[M^(@)L^(1)T^(@)Q^(1)]`
Electric flux `phi=oint vecE.vec(ds)" "[phi]=[M^(-1)L^(3)T^(-2)Q^(-1)]` Electric field `[E]=[M^(1)L^(1)T^(-3)Q^(-1)]`