The Laplace transform of the causal periodic square wave of period T shown in the figure below is

\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{{\rm{s}}\left( {1 - {{\rm{e}}^{ - {\rm{sT}}}}} \right)}}\)

\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{1 + {{\rm{e}}^{ - \frac{{{\rm{sT}}}}{2}}}}}\)

\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{{\rm{s}}\left( {1 + {{\rm{e}}^{ - \frac{{{\rm{sT}}}}{2}}}} \right)}}\)

\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{1 - {{\rm{e}}^{ - {\rm{sT}}}}}}\)

The Laplace transform of the causal periodic square wave of period T s

1.	The Laplace transform of the causal periodic square wave of period T shown in the figure below is
A.	\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{1 + {{\rm{e}}^{ - \frac{{{\rm{sT}}}}{2}}}}}\)
B.	\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{{\rm{s}}\left( {1 + {{\rm{e}}^{ - \frac{{{\rm{sT}}}}{2}}}} \right)}}\)
C.	\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{{\rm{s}}\left( {1 - {{\rm{e}}^{ - {\rm{sT}}}}} \right)}}\)
D.	\({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{1 - {{\rm{e}}^{ - {\rm{sT}}}}}}\)
Answer» C. \({\rm{F}}\left( {\rm{s}} \right) = \frac{1}{{{\rm{s}}\left( {1 - {{\rm{e}}^{ - {\rm{sT}}}}} \right)}}\)