1. The problem statement, all variables and given/known data The transient behaviour of a capacitor has been studied by measuring the voltage from across the device as a function of time. The following data has been obtained. Time (s)/Voltage (v) 0 / 10 1 / 6.1 2 / 3.7 3 / 2.2 4 / 1.4 5 / 0.8 6 / 0.5 7 / 0.3 8 / 0.2 9 / 0.1 10 /0.07 12 /0.03 2. Relevant equations The following relationship for the change in voltage, V, with time, t, has been proposed: DV/DT = -k fcn(v) Where k is a constant and fcn(v) could have one of the following forms: 1. fcn(v) = c (where c is a constant) 2. fcn(v) = V 3. fcn(v) = V2 (fcn is an abbreviation of the term "a function of") I am to derive three corresponding expressions for V as a function of time. 3. The attempt at a solution I am having trouble with where to start. I believe the aim is to find which equation, using the data, creates a linear relationship. Any help on how to derive the equations would be much appreciated.