Q. FET amplifier is more difficult to analyse than BJT amplifier.

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Q. If an amplifier with gain of - 100 and feedback of β = - 0.1 has a gain change of 20% due to temperature the change in gain of the feedback amplifier will be

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Q. A voltage gain of a CE amplifier connected in collector to base configuration is 50. Collector to base resistor RF = 1 kΩ, RC = 4Ω, the O/P resistance R0 =?

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Q. A voltage multiplier circuit, using diodes and capacitors is suitable for

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Q. In a CE amplifier the ac emitter resistance

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Q. The output impedance of an ideal op-amp is

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Q. A virtual ground is a ground for

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Q. As compared to a full wave diode rectifier circuit using centre tapped transformer, the bridge diode rectifier circuit has the main advantage of

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Q. To bypass a 100 ohm emitter resistor at

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Q. In a CE amplifier the dc load line is the same as ac load line when

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Q. If the output current wave shape of class C circuit has a period of 1 μs and a pulse width of 0.006 μs, the duty cycle is

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Q. Which configuration is suitable for impedance matching?

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Q. A BJT is said to be operating in saturation region if

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Q. Which component is allowed to pass through it by a choke filter?

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Q. In an amplifier the stray capacitances assume impedance at low frequencies

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Q. In CE amplifier the base current is very high.

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Q. In the graphical analysis of CE amplifier circuit, the upper end of load line is called

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Q. A full wave rectifier supplies a load of 1 kΩ. The a.c. Voltage applied to the diodes is 220 - 0 - 220 Volts rms. If diode resistance is neglected, then Average d.c. Voltage

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Q. Consider 49 cascaded amplifiers having individual rise time as 2 n sec. 3 n sec. ... 50 n sec. The input waveform rise time is 1 n sec. Then the output signal rise time is given time by (Assume output signal rise time is measured within 10 percent range of the final output signal.)

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Q. In a capacitor filter, the time constant RLC should be small.

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