S.no | Quantity | Definition | Dimensional Formula | S.I. Unit |
1 | Charge | Current x time | TA | Coulomb (C) |
2 | Electric potential (V) | Work/charge | ML2T-3A-1 | Volt=joule.C-1 |
3 | Electric Intensity | Force/ charge | MLT-3A-1 | NC-1 |
4 | Capacitance | Charge /potential | M-1 L-2 T4 A-2 | Farad |
5 | Electric dipole moment | Charge x dist. | LTA | Cm |
6 | Electrical permittivity (ꜫo) | =ꜫ0 | M-1L-2T4A2 | C2N-1m-2 |
7 | Dielectric constant or relative permittivity | ꜫr = | M0L0T0 | Unitless |
8 | Resistance (R) | – | ML2T-3A-2 | Ohm (Ώ) |
9 | Conductance | (Resistance)-1 | M-1L-2T3A2 | Siemen = (ohm)-1 |
10 | Resistivity or specific resistance | | ML3 T-3A-2 | Ohm metre |
11 | Conductivity | (Resistance)-1 | M-1L-2T3A2 | ohm-1. metre-1 |
12 | Electric flux | Electric intensity x area | ML3 T-3A-1 | NC-1m2 |
13 | Specific charge | Charge/mass | M-1TA | Coulomb. Kg-1 |