Q. In a current mirror

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Q. In which of the following circuits is op-amp used in open loop configuration?

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Q. In a diode rectifier with a capacitance input filter, a surge current is likely to flow when the circuit is switched on. The cause of this surge current is

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Q. In deriving ac equivalent circuit for an amplifier circuit we short circuit

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Q. Which of the following statements is false?

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Q. Which of the following amplifier circuit using junction transistor has the best gain?

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Q. In an op-amp differentiator

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Q. In switching devices, gold doping is used to

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Q. Assertion (A): If power gain doubles the power gain increases by 3 dB

Reason (R): The bel power gain of cascaded stages is equal to sum of each bel power gain

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Q. The V MOS can handle __________ currents than a conventional MOSFET.

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Q. Assertion (A): A resistor is a passive load and a transistor is an active load

Reason (R): Op-amp is mostly used in feedback mode

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Q. Which mode is usually preferred for cascading?

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Q. In a transistor leakage current mainly depends on

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Q. In a CB amplifier the maximum efficiency could be

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Q. Assertion (A): As per Miller theorem a capacitance C from input to output appears as a much larger capacitance across input terminals

Reason (R): In a lag network the output voltage appears across capacitor

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Q. When a transistor is connected in common emitter mode, it with have

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Q. The noise figure of FET circuit is

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Q. The encapsulation of transistor is necessary for

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Q. In CE approximately, the active region is where the collector curves are

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Q. A certain transistor has αdc of 0.98 and a collectors leakage current of 5 μA. If IE = 1 mA, the base current will be

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