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AEC_MCT1_ans_2008 - EE3110 Analogue Electronic Circuits...

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EE3110 Analogue Electronic Circuits Test Name/Student ID Apart from Q5-6, circle the answer that best suits the question. R 1 R S C E C 2 C 1 V CC Loa d Source R 2 R C R E R L Figure Q1-2 for questions 1 and 2 1 What is the input resistance of the CE amplifier shown with the load connected at mid-frequency? a) π r R R // // 2 1 b) π r R R R S // // 2 1 + c) ( 29 ( 29 E f R r R R 1 // // 2 1 + + β π d) ( 29 ( 29 E f S R r R R R 1 // // 2 1 + + + β π e) ( 29 E R r R R + π // // 2 1 2 What is the voltage gain of the CE amplifier shown with the load connected at mid-frequency? a) π β r R C f - b) ( 29 π β r R R L C f // - c) 2 1 // // R R r R C f π β - d) ( 29 2 1 // // // R R r R R L C f π β e) ( 29 1 + + - f E C f R r R β β π R 1 R S C B C 2 C 1 V CC Load Source R 2 R C R E R L Figure Q3-4 for questions 3 and 4 3 What is the input resistance of the CB amplifier shown with the load connected at mid-frequency? a) E R b) π r R E // c) + 1 // f E r R β π d) ( 29 ( 29 1 // + f E r R β π e) S E R R + 4 What is the gain of the CB amplifier shown with the load connected at mid-frequency?
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