represents molar absorptivity of a solution, c represents molarity of solution and l represents cell thickness.
Measurement of absorption is done by taking solutions of a particular solute with different concentrations. A particular solute has a particular maximum absorption wavelength. So absorption experiment is done by keeping this maximum absorption wavelength constant.
remains constant for a particular solute and a particular absorption wavelength.
During absorption experiment, same cuvette with a particular cell thickness is used. So "l" remains constant during experiment.
So the variables are "c" and "A" as absorption depends on concentration of solution.
Therefore Beer's law can be considered as y=mx relation, where y is equivalent to "A" , x is equivalent to "c" and m is equivalent to "".
Now, y=mx represents a straight line passing through origin. Therefore y-intercept of any Beer's law plot equal to zero.
Electrical energy is caused by moving particles that have a negative or positive charge. These charged particles are called electrons. The faster the electrons are moving, the more electrical energy they carry. Electrical energy commonly moves through a wire in an electrical circuit.