\begin{tabular}{|l|l|l|} \hline Q9 & Which three of the following statements are true? & (3 marks) \\ & a) Voltage gain is expressed as 10logVinVout \\ & b) Power gain is expressed as 20logPinPout \\ c) Gain in dB can be simply added and subtracted \\ d) Voltage gain is expressed as 20logVinVout \\ e) Power gain is expressed as 10logPinPout & \\ \hline A9 & Student answer: & \\ \hline \end{tabular}