An npn BJT has gm=38mA/v, c =10 14 F, c =10 13F and DC current gain – McqOptions

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1.	An npn BJT has gm=38mA/v, c =10 14 F, c =10 13F and DC current gain 0=90.For this transistor fT & f are________?
A.	FT =1.64 x 108 Hz & f = 1.47 x 1010 Hz.
B.	FT =1.47 x 1010 Hz & f = 1.64 x 108 Hz
C.	FT =1.33 x 1012 Hz & f = 1.47 x 1010 Hz
D.	FT =1.47 x 1010 Hz & f = 1.33 x 1012 Hz
Answer» C. FT =1.33 x 1012 Hz & f = 1.47 x 1010 Hz

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