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Q1. | For a npn BJT transistor f is 1.64 x 10_{β}^{8} Hz. C_{μ} = 10^{-14} F; C_{p} = 4 x 10^{-13} F and DC current gain is 90. Find f and _{T}g (_{m}f = cut off frequency, C_{β}_{μ} = capacitance, C_{p} = parasitic capacitance, g = transconductance, _{m}f = gain BW product)_{T} |

A. | f = 1.47 x 10_{T}^{10} Hz ; g = 38 milli mho [Correct Answer]_{m} |

B. | f = 1.64 x 10_{T}^{8} Hz ; g = 30 milli mho [Wrong Answer]_{m} |

C. | f = 1.47 x 10_{T}^{9} Hz ; g = 38 mho [Wrong Answer]_{m} |

D. | f = 1.33 x 10_{T}^{12} Hz; g = 0.37 m-mho [Wrong Answer]_{m} |

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