Which of the following is not a unit of elect | vedclass

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(C) The electric field $E$ is defined as the force per unit charge,so its $SI$ unit is $N C^{-1}$.Since the potential difference $V$ is work done per

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$J C^{-1}$

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(C) The electric field $E$ is defined as the force per unit charge,so its $SI$ unit is $N C^{-1}$.Since the potential difference $V$ is work done per unit charge $(V = W/q)$,the unit is $J C^{-1}$.Electric field is also defined as the potential gradient,$E = -dV/dr$,which gives the unit $V m^{-1}$.Substituting $V = J C^{-1}$ into $V m^{-1}$,we get $J C^{-1} m^{-1}$.Therefore,$N C^{-1}$,$V m^{-1}$,and $J C^{-1} m^{-1}$ are all valid units for the electric field.$J C^{-1}$ is the unit of electric potential,not the electric field.

Which of the following is not a unit of electric field?

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