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If beta, RL and r are the ac current gai...

If `beta, R_L and r` are the ac current gain, load resistance and the input resistance of a transistor respectively in CE configuration, the voltage and the power gains respectively are

A

`beta(R_(L))/(r)"and"beta^(2)(R_(L))/(r)`

B

`beta(r)/(R_(L))"and"beta^(2)(r)/(R_(L))`

C

`beta(R_(L))/(r)"and"beta^(2)((R_(L))/(r))^(2)`

D

`beta(r)/(R_(L))"and"beta^(2)((r)/(R_(L)))^(2)`

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The correct Answer is:
A
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