54751. In CC configuration, the output signals has approximately
54752. The PIV of a bridge rectifier is less than that of full wave rectifier with centre tapped transformer.
54753. Zero bias works only with
54754. Which of the following uses a capacitor in the feedback path?
54755. In an inverting amplifier using op-amp the current input to the inverting terminal
54756. For a transistor the normal collector voltage is 12 V. If actually it is found to be + 28 V, the trouble could be
54757. In a CE transistor amplifier, when collector-emitter voltage increases
54758. In figure, VC is approximately equal to
54759. Which one of the following power amplifier has the maximum efficiency?
54760. Figure shows small signal model of CB amplifier circuit. Then I and R are respectively equal to
54761. The common emitter short circuit current gain β of a transistor
54762. A complementary symmetry amplifier has
54763. The units of are
54764. Negative feedback is used in audio amplifiers to
54765. A BJT amplifier has a power gain of 0.5 from source to base. The power gain in dB is
54766. A rectifier circuit has load resistance R. It uses a capacitance filter having capacitance C. For low ripple in the output
54767. In graphical analysis of BJT amplifier the slope of ac line is more than that of dc load line.
54768. Which circuit is called emitter follower?
54769. Logarithmic amplifiers are used in
54770. ”The principle of respect for all life and the practice of non-injury to living things’is known in India as:
54771. In figure VBE = 0.7 V. If base current required to saturate the transistor is 0.1 mA, Vi =
54772. As per miller theorem the circuit of figure (1) can be replaced by that in figure (2) If V1/V2 = K, then Y1 and Y2 are equal to
54773. In a biased JFET (Figure) the shape of the channel is as shown because
54774. Assertion (A): In class A amplifier the distortion is minimumReason (R): In class A amplifier collector current exists for 360° of input cycle
54775. Assertion (A): In a differential amplifier the current through common emitter resistor is called tail currentReason (R): CMRR of an op-amp indicates how a differential signal amplified
54776. Quartz crystal has
54777. The current ICBO
54778. Assertion (A): In a push pull circuit each transistor stays in the active region for one half cycleReason (R): A push pull amplifier has low distortion
54779. Article 144 of the Constitution mandates that all authorities, civil and judicial in the territory of India shall act in aid of the?
54780. In a bipolar transistor at room temperature if the emitter current is doubled the voltage across its base emitter junction
54781. The Servants of India Society(1905)was formed to train people to serve the country by:
54782. Negative feedback lowers the cut off frequency and increase the upper cut off frequency of amplifier.
54783. In a single-stage RC coupled common emitter amplifier, the phase shift at the lower 3 dB frequency is
54784. CE mode input V-I characteristic can be shown by a plot of
54785. n-channel MOS is
54786. Which of the following compensation method in amplifier can be used to reduce the bandwidth?
54787. A push pull amplifier balance out
54788. In a half wave rectifier, Vrms is
54789. If the thermal resistance of a transistor is lower it means
54790. A Darlington pair has β = 300. If RE = 1 kΩ and RL = 100 Ω, the input impedance at the base is approximately
54791. Barkhausen criterion is 1 + Avβ = 0.
54792. The voltage gain of which transistor configuration is less than unity?
54793. Linear transistor circuits always operate in
54794. Assertion (A): Manufacturer's quote h parameters of transistor Reason (R): h parameters of a transistor are easiest to measure
54795. The P-type substrate in a conventional pn Junction isolated integrated circuits should be connected to
54796. Wien bridge uses
54797. Which of the following is not necessarily the advantages of a push pull amplifier?
54798. Which of the following best represents the output impedance of an actual op-amp?
54799. In CE amplifier
54800. The approximate value of input impedance of a common emitter amplifier with emitter resistance Re is given by