ECE :: Analog Electronics
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In a BJT amplifier circuit the size of coupling capacitor depends on
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In a closed loop non-inverting amplifier, constructed using single break-frequency op-amp, bandwidth with feedback can be written as. (f0 - break frequency, β - gain of the feedback circuit, A - open loop voltage gain, Af - closed loop voltage gain)
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A silicon sample A is doped with 1018 Atoms/cm3 of Boron. Another sample B of identical dimensions is doped with 1018 atoms/cm3 of phosphorus. The ratio of electron to hole mobility is 3. The ratio of conductivity of the sample A to B is
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Which of the following circuit has the greatest bandwidth?
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A FET is a __________ controlled device whereas a bipolar transistor is a __________ controlled device.
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Two identical FETs, each characterised by the parameters gm and rd are connected in parallel. The composite FET is then characterised by the parameters
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Assertion (A): If power gain doubles the power gain increases by 3 dB
Reason (R): The bel power gain of cascaded stages is equal to sum of each bel power gain
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The V MOS can handle __________ currents than a conventional MOSFET.
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Assertion (A): A resistor is a passive load and a transistor is an active load
Reason (R): Op-amp is mostly used in feedback mode
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