c
વૉલ્ટેજ વાહક \( = \,\,\left( \beta  \right)\,\,\left( {\frac{{{R_0}}}{{{R_1}}}} \right)\,\, = \,\,50\,\, \Rightarrow \,\,\beta \, = \,\,\frac{{50\,\, \times \,\,{R_L}}}{{{R_0}}}\,\, = \,\,\frac{{50\,\, \times \,\,200}}{{400}}\,\, = \,\,25\,\)

પાવર ગેઇન \( = \,\,\left( {{\beta ^{2\,}}} \right)\,\,\left( {\frac{{{R_0}}}{{{R_1}}}} \right)\,\, = \,\,{\left( {25} \right)^2}\,\,\left( {\frac{{400}}{{200}}} \right)\,\, = \,\,625\,\, \times \,\,2\,\, = \,\,1250\)