Amplifiers Quiz

Briefly discuss Amplifiers.

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Considering Figure 1 and Figure 2, list main types of amplifiers with their applications and give detailed explanation, supporting with relevant diagrams/pictures etc.

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Build the following circuit using the TINA simulation package.

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Plot a graph between frequency (x-axis) and gain in dB (y-axis).

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Apply a sine wave of 40mV/1 KHz. Calculate voltage gain of an amplifier in dB using Oscilloscope.

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Vary frequency and note down output voltage using Oscilloscope.

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Explain types of feedback (Open and Closed loop, Positive and Negative feedback). Consider advantages and disadvantages of these. It’s effect on amplifier performance.

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Describe the figure 3 circuit without a capacitor connected across Re.

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Discuss advantages and disadvantages of R-C oscillators.

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Gain calculation, this is an inverting amplifier. Gain = Rf/Rin. Calculate gain.

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