ECE :: Analog Electronics
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Which of the following circuit does not need a coupling capacitor?
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Assertion (A): A large negative feedback is deliberately introduced in an amplifier to make its gain independent of variation is in parameters of active device and other components.
Reason (R): A large negative feedback results in a high value of return difference compared to unity which makes the feedback gain inversely proportional to feedback factor.
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In case of a transistor amplifier the emitter resistance Re is removed
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In oscillators class C operation is preferred because
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In a common emitter circuit all voltages are measured with respect to
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A ripple in collector supply voltage of the output stage of amplifier causes noise.
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In a transistor IE = 10 mA, ICO = 0.5 μA and a = 0.995. Then ICEO =
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As a compared to a CB amplifier, a CE amplifier has
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The stray capacitance between the last stage and the first stage of an oscillator may cause
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In a voltage regulator circuit using zener diode the load voltage is nearly constant only if
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