ECE :: Analog Electronics
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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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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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The current ICBO
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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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Which of the following statement is correct?
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In a bipolar transistor at room temperature if the emitter current is doubled the voltage across its base emitter junction
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Which one of the following power amplifier has the maximum efficiency?
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Negative feedback lowers the cut off frequency and increase the upper cut off frequency of amplifier.
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In a single-stage RC coupled common emitter amplifier, the phase shift at the lower 3 dB frequency is