an npn bjt has gm=38ma/v, cµ =10¯14 f, cπ =10¯13f and dc current gain β0=90.for this transistor ft & fβ are Options: A . &nbsp fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz B . &nbsp fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz C . &nbsp fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz D . &nbsp fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz

an npn bjt has gm=38ma/v, cµ =10¯14 f, cπ =10¯13f and dc current gain β0=90

Question

An npn bjt has gm=38ma/v, cµ =10¯14 f, cπ =10¯13f and dc current gain β0=90.for this transistor ft & fβ are

Options:

A . fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz

B . fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz

C . fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz

D . fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz

Answer: Option B

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