Analog Electronics
An amplifier using an opamp with slew rate SR=1v/µsec has a gain of 40db.if this amplifier has to faithfully amplify sinusoidal signals from dc to 20 KHz without introducing any slew-rate induced distortion, then the input signal level must not exceed

395mV
79.5 mV
795mV
39.5mV

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Analog Electronics
Which of the following statements is false?

Class AB operation cannot be used for a push pull audio power output phase
A push pull output transformer has a centre-tapped primary
All of these
Push pull signals are equal and opposite in phase

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Analog Electronics
For an NPN transistor in normal bias

  the emitter junction has high resistance.
  Je is forward biased and Jc is reverse biased.
  only majority carriers cross the collector junction.
  only holes cross the collector junction.

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