An ideal efficient transformer has a primary power input of 10 kW. The secondary current when the transformer is on load is 25 A. If the primary: secondary turns ratio is 8 : 1, then the potential difference applied to the primary coil is

\[\frac{{{10}^{4}}}{25\times 8}V\]

\[\frac{{{10}^{4}}\times {{8}^{2}}}{25}V\]

\[\frac{{{10}^{4}}\times 8}{25}V\]

\[\frac{{{10}^{4}}}{25\times {{8}^{2}}}V\]

An ideal efficient transformer has a primary power input of 10 kW. The

1.	An ideal efficient transformer has a primary power input of 10 kW. The secondary current when the transformer is on load is 25 A. If the primary: secondary turns ratio is 8 : 1, then the potential difference applied to the primary coil is
A.	\[\frac{{{10}^{4}}\times {{8}^{2}}}{25}V\]
B.	\[\frac{{{10}^{4}}\times 8}{25}V\]
C.	\[\frac{{{10}^{4}}}{25\times 8}V\]
D.	\[\frac{{{10}^{4}}}{25\times {{8}^{2}}}V\]
Answer» C. \[\frac{{{10}^{4}}}{25\times 8}V\]