The relationship between the power, WWW, and the current, III, in an electrical component is modeled by W=rIkW = rI^kW=rIk, where r r\,r and k k\,k are constants.
Show that this relationship can be written in the form logW=logr+klogI\log W = \log r + k \log IlogW=logr+klogI.
104 exam-style questions on WJEC A Level Maths 1.6 Exponentials and logarithms, covering 1.6.1 Exponentials and logarithms, 1.6.2 Exponentials and logarithms, 1.6.3 Exponentials and logarithms, 1.6.4 Exponentials and logarithms, 1.6.5 Exponentials and logarithms, 1.6.6 Exponentials and logarithms, 1.6.7 Exponentials and logarithms, 1.6.8 Exponentials and logarithms, and 1.6.9 Exponentials and logarithms. Each one has a worked solution and a mark scheme showing where the marks go.