Q. At high frequencies the output circuit of transistor amplifier reduces to

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Q. A pulse transformer uses

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Q. An amplifier signal is made up of just two frequencies 1000 Hz. The output signal consists of 500 Hz and 25000 Hz frequencies. This may be attributed to

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Q. If input ac is 10 Vrms, then maximum voltage that will appear across the diode of a half wave rectifier with a capacitor I/P filter will be

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Q. One of the major applications of JFET is in

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Q. Which of the following circuits can operate class AB for audio power output?

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Q. In a P-N-P transistor, with normal bias

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Q. A D.C. amplifier amplify

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Q. In common base amplifier the current gain is less than one, but the voltage gain may be anywhere from

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Q. In a class C operation

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Q. For a good voltage amplifier, its input impedance should be

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Q. Gain stability in an oscillator can bs achieved by

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Q. A Hartley oscillator uses

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Q. Aperture circuit produces __________ in sample hold circuit.

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Q. A clipper

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Q. In a rectifier circuit the filter capacitance is increased. Then the ripple will

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Q. The static characteristic of an adequately forward biased p-n junction is a straight line if the plot is of

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Q. The main use of JFET with a

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Q. Assertion (A): A dc stabilizer has constant output voltage irrespective of variations in input voltage and load current

Reason (R): A dc series regulator uses a zener diode across the load to stabilize the output voltage.

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Q. In the self biasing scheme (RF across collector to base) of BJT, S1 tends to unity by __________ RC is the collector load Resistance.

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