by Paul R. Lawrence One of the most baffling and recalcitrant of the problems which business executives face is employee resistance to change. Such resistance may take a number of forms ...

Plot a graph of resistance, R, in Ω on the y-axis against length, l, in cm on the x-axis). Draw the line of best fit. We can see from the graph that as the length of the wire, l, increases ...

To investigate experimentally how the resistance of a metallic conductor at constant temperature depends on length and obtain sufficient values to plot a graph ... is what we change or control ...