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Q. Why do we cascade amplifiers? Why is RC coupling the most widely used coupling between 2 stages of a cascading amplifier?
The voltage or power gain or frequency response obtainable from a single stage amplifier is usually not sufficient to meet the needs of either a composite electronic circuit or load device, so cascading of amplifiers is required to provide greater voltage of current amplification of both. RC coupling is the most widely used coupling between the two stages of a cascaded or multi stage amplifier because it is cheaper in cost, it is a very compact circuit and provides excellent frequency response.
how back emf is produced in transformer?
A battery having of 12 cells are divided in three group which each group having of four cells in series. The three groups are joined in parallel. The emf of every cell is 1.5V and
1. The circuit shown below is a DC charging and discharging circuit. a. At t = 0 sec, switch S1 is thrown to position 1 ("pos1"). Write the mathematical expressions for V
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Please can you explain the operation of a transistor in a Common Emitter Class A audio Amplifier?
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