68601. By connecting external resistances to a differential amplifier we can adjust
68602. In a CC circuit the current gain is
68603. A feedback network to be used with an amplifier to provide oscillation is tested and found to give an output of 0.124 V with a 0.5 V input. What must be the minimum gain of the oscillator to provide oscillations?
68604. For the circuit shown in figure low cut-off frequency is
68605. In a CE amplifier the Q point is very close to saturation point on the dc load line. This results in
68606. Class-B amplifier has less efficiency compared to
68607. In the amplifier circuit figure the quiescent point voltage and current are
68608. Calculate the O/P voltage of a non-inverting constant gain multiplier with R1 = 100 kΩ, Rf= 600 kΩ, V1 = 2 volt, then O/P voltage Vo of non inverting op-amp is given by
68609. The noise figure of FET circuit is
68610. The circuit diagram shown in the figure consists of transistors in;
68611. The encapsulation of transistor is necessary for
68612. I have never met Osama bin Laden-------------do I want to(Neg.conjunction)
68613. In CE approximately, the active region is where the collector curves are
68614. In a transistor leakage current mainly depends on
68615. In a CB amplifier the maximum efficiency could be
68616. Assertion (A): As per Miller theorem a capacitance C from input to output appears as a much larger capacitance across input terminalsReason (R): In a lag network the output voltage appears across capacitor
68617. When a transistor is connected in common emitter mode, it with have
68618. In the equivalent circuit of figure voltage gain is
68619. The signal input to a given amplifier is made up of 100 mΩ signal power and 1 mΩ noise power. The amplifier contributes an additional 100 mΩ of noise and has a power gain of 20 dB. The input signal-to noise ratio is
68620. Assertion (A): A good op-amp should have very large band widthReason (R): An ideal op-amp should have infinite input resistance and zero output resistance
68621. In all base driver amplifiers
68622. The horizontal intercept of dc load line is the same as ideal
68623. It was not difficult to park the car in front of the theatre(gerund)
68624. In deriving ac equivalent circuit for an amplifier circuit we short circuit
68625. Give the Plural form:Sheep
68626. Which of the following amplifier circuit using junction transistor has the best gain?
68627. In an op-amp differentiator
68628. In switching devices, gold doping is used to
68629. In a BJT amplifier circuit the size of coupling capacitor depends on
68630. 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
68631. Which of the following circuit has the greatest bandwidth?
68632. A FET is a __________ controlled device whereas a bipolar transistor is a __________ controlled device.
68633. Two identical FETs, each characterised by the parameters gm and rd are connected in parallel. The composite FET is then characterised by the parameters
68634. Assertion (A): If power gain doubles the power gain increases by 3 dBReason (R): The bel power gain of cascaded stages is equal to sum of each bel power gain
68635. The V MOS can handle __________ currents than a conventional MOSFET.
68636. Assertion (A): A resistor is a passive load and a transistor is an active loadReason (R): Op-amp is mostly used in feedback mode
68637. Which mode is usually preferred for cascading?
68638. A certain transistor has a dc of 0.98 and a collectors leakage current of 5 μA. If IE = 1 mA, the base current will be
68639. To prevent a DC return between source and load, it is necessary to use
68640. For a base current of 10 μA, what is the value of collector current in common emitter if βdc = 100
68641. Which of the following oscillators is suitable for frequencies in the range of mega hertz?
68642. If the input to the ideal comparator shown in the figure is a sinusoidal signal of 8 V (peak to peak) without any DC component, then the output of the comparator has a duty cycle of
68643. A half wave diode circuit using ideal diode has an input voltage 20 sin ωt volts. Then average and rms values of output voltage are
68644. Change the Gender Goose
68645. Use the Prefix and Suffix:Forget
68646. Give the Synonym:Predict
68647. Give the Antonym:Hereditary
68648. If a system is to follow arbitrary inputs accurately the bandwidth should be
68649. For the system of the given figure, the damping ratio of closed loop poles is
68650. Assertion (A): Potentiometers can not be used as error detectors in position control systems.Reason (R): The resolution of a potentiometer places an upper limit on its accuracy
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