GATE Electronics and Communications (EC) 2013 Solved Paper

The following arrangement consists of an ideal transformer and an attenuator which is attenuated by a factor of 0.8. An a.c.voltage ${\mathit{V}}_{\mathit{w}{\mathit{x}}_1}=100\mathit{V}$ is applied across $\mathit{W}\mathit{X}$ to get on the open-circuit voltage ${\mathit{V}}_{\mathit{Y}{\mathit{Z}}_1}$ across YZ. Next, an ac voltage ${\mathit{V}}_{\mathit{Y}{\mathit{Z}}_2}=100\mathit{V}$ is applied across YZ to get an open circuit voltage ${\mathit{V}}_{\mathit{W}{\mathit{X}}_2}$ across $\mathit{W}\mathit{X}$ , then
${\mathit{V}}_{\mathit{Y}{\mathit{Z}}_1}∕{\mathit{V}}_{\mathit{W}{\mathit{X}}_1},{\mathit{V}}_{\mathit{W}{\mathit{X}}_2}∕{\mathit{V}}_{\mathit{Y}{\mathit{Z}}_2}$ are