Important Dimensions and Units : Physical quantity Dimension SI unit Force (F) [ML T ] 1 1 2 newton Work (W) [ML T ] 1 2 2 joule Power (P) [ML T ] 1 2 3 watt Gravitational constant (G) [M L T ] 1 3 2 N-m2/kg2 Angular velocity () [T ] 1 radian/s Angular momentum (L) [ML T ] 1 2 1 kg-m2/s Moment of inertia (I) [ML ] 1 2 kg-m2 Torque () [ML T ] 1 2 2 N-m Young’s modulus (Y) [ML T ] 1 1 2 N/m2 Surface Tension (S) [M T ] 1 2 N/m Coefficient of viscosity () [ML T ] 1 1 1 N-s/m2 Pressure (p) [ML T ] 1 1 2 N/m2 (Pascal) Intensity of wave (I) [M T ] 1 3 watt/m2 Specific heat capacity (c) [L T K ] 2 2 1 J/kg-K Stefan’s constant () [M T K ] 1 3 4 watt/m2-k4 Thermal conductivity (k) [ML T K ] 1 1 3 1 watt/m-K Current density (j) [I L ] 1 2 ampere/m2 Electrical conductivity () [I T M L ] 2 3 1 3 –1 m–1 Electric dipole moment (p) [LI T ] 11 1 C-m Electric field (E) [MLI T ] 1 1 1 3 V/m Electrical potential (V) [ML I T ] 1 2 1 3 volt Electric flux () [M T I L ] 1 3 1 3 volt/m Capacitance (C) [I T M L ] 2 4 1 2 farad (F) Permittivity () [I T M L ] 2 4 1 3 C2/N-m2 Permeability () [MLI T ] 1 1 2 3 Newton/A2 Magnetic dipole moment (M) [I L ] 1 2 N-m/T Magnetic flux () [ML I T ] 1 2 1 2 Weber (Wb) Magnetic field (B) [MI T ] 1 1 2 tesla Inductance (L) [ML I T ] 1 2 2 2 henry Resistance (R) [ML I T ] 1 2 2 3 ohm () * * * *
Posted on: Sun, 03 Aug 2014 15:47:15 +0000