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ECNG1012 : Engineering Science and Technology (Semester I- 2024/2025)
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Cut-off frequency is defined as the frequency at which the characteristic response of the BJT is -3dB with respect to the midband or maximum response.
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Fill in the blank:The BJT can be viewed as two ____ with a common terminal.
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How many terminals does a BJT posses ?
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Which of the following is NOT true for fixed biasing method:
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The purpose of R3 in the above H-Bias configuration is:(1) To form a potential divider with R1.(2) To set the base potential of the transistor.(3) To block the input current.(4) To form a potential divider with Re. 
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We can determine the measured voltage gain of a fixed-bias circuit in the laboratory using the following relationship:
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The Q-Points in a transistor are:
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Which of the following is not a region of operation for a BJT ?
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During design, DC Analysis can be used to set or determine the maximum swing of a BJT amplifier. It can also be used to bias the amplifier for symmetrical swing. This procedure is performed by open circuiting all capacitors. The resulting network can then be used to determine maximum swing and if the swing is symmetrical.
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AC Analysis can used to determine the gain equation of a BJT amplifier circuit. This procedure is performed by short circuiting all capacitors, short circuiting the DC voltage supply and replacing the transistor with its appropriate equivalent circuit. The resulting circuit can then be used to determine the gain equation by determining equations for Vout and Vin and then then determining the gain Av using the formula Av =Vout/Vin.
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