Which of the following set have different dimensions?

Pressure, Young's modulus, Stress

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Emf, Potential difference, Electric potential

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Heat, Work done, Energy

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Electric dipole moment, Electric flux, Electric field

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Solution

The correct option is D Electric dipole moment, Electric flux, Electric field
Electric dipole moment=charge $\times$ distance between charges $= [A T] \times [L] = [A L T]$
Electric flux $=$ Electric field strength x area $= [M L T^{- 3} A^{- 1}] [L^{2}] = [M L^{3} T^{- 3} A^{- 1}]$
Electric field $=$ Force per unit charge $= [M L T^{- 3} A^{- 1}]$

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Which of the following set have different dimensions?

The correct option is D Electric dipole moment, Electric flux, Electric fieldElectric dipole moment=charge × distance between charges=[AT]×[L]=[ALT]Electric flux = Electric field strength x area=[MLT−3A−1][L2]=[ML3T−3A−1]Electric field = Force per unit charge=[MLT−3A−1]