EC 2040 Lecture Notes - Lecture 1: Magnetic Field, Electrical Network, Linear Circuit
Document Summary
The si system is the approved abbreviation for international system of unit (systeme. The size physical or fundamental quantities selected as the basic unit of. Si system are: length (meter, m, time (second, s, mass (kilogramme, kg, electric current (ampere, a, temperature (kelvin, k, luminous intensity (candela, cd) Other derived units from the basic physical quantities are derived physical quantities, some which include: area ( meter sqquare, volume (meter cube, velocity (meter per sec, acceleration (meter per sec sq, angular velocity (rad per sec) For example, the dimension of the velocity is [lt-1], that of acceleration is [lt-2]and so on. Obtain the dimension of the following quantities: force, momentum, charge, power, potential difference. 1: resistance, magnetic flux density, permeability, electric flux density. The basic electrical quantities include: current, electric charge, potential difference. Current: the electric current is the flow of electrons.
