Q. Logarithmic amplifiers are used in

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Q. Negative feedback is used in audio amplifiers to

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Q. A BJT amplifier has a power gain of 0.5 from source to base. The power gain in dB is

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Q. A rectifier circuit has load resistance R. It uses a capacitance filter having capacitance C. For low ripple in the output

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Q. In graphical analysis of BJT amplifier the slope of ac line is more than that of dc load line.

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Q. Which circuit is called emitter follower?

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Q. Assertion (A): In class A amplifier the distortion is minimum

Reason (R): In class A amplifier collector current exists for 360° of input cycle

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Q. Assertion (A): In a differential amplifier the current through common emitter resistor is called tail current

Reason (R): CMRR of an op-amp indicates how a differential signal amplified

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Q. Quartz crystal has

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Q. The current ICBO

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Q. Assertion (A): In a push pull circuit each transistor stays in the active region for one half cycle

Reason (R): A push pull amplifier has low distortion

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Q. In a good voltage amplifier, its input impedance

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Q. A non-inverting voltage feedback amplifier is a

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Q. A Colpitt's oscillator uses

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Q. In every practical oscillator, the loop gain is slightly larger than unity and the amplitude of the oscillations is limited by the

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Q. IF amplifiers for radio receivers are often tuned to

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Q. In high frequency region, an amplifier behaves like a

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Q. Class C operation finds application in

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Q. In a CE amplifier circuit the load resistance is open circuited. The output voltage will

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Q. Emitter follower is in which of following configuration.

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