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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Q. Which of the following components is essential for a voltage multiplier circuit?

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Q. The transistor specification number 2N refers to

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Q. Stability factor for S is given by for a fixed bias

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

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Q. Assertion (A): Direct coupled amplifiers are rarely used

Reason (R): Direct coupled amplifiers suffer from the disadvantage of drift

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Q. In a feedback series regular circuit, the output voltage is regulated by controlling the

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Q. The transformer cores operating at microwave frequency ranges are generally made up of

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