Q. For a transistor if αdc = 0.98 and emitter current IE is 2 mA, then base current will be

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Q. Assertion (A): Linear ICs include audio amplifier, wideband amplifier, RF amplifier and IF amplifier

Reason (R): The error voltage in a feedback circuit is very small

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Q. Assertion (A): The horizontal intercept of dc load line is the same as ideal cut off point

Reason (R): When a transistor is in cut off region, collector current is zero

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Q. In a full wave diode rectifier circuit each diode carries current for

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Q. When a JFET is cut off, it's like an __________ switch and when it is saturated, it's like a __________ switch.

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Q. The mobility of e- for Ge and Si respectively is

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Q. If a capacitor C is charged by a constant current I, then the rate of change of voltage with time given by sweep speed equal to

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Q. In operational Amplifier, Common mode voltage gain should be

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Q. Which of the following are linear ICs?

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Q. The more negative gate voltage, the conductive channel becomes

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Q. Which circuit has its output signal from, the emitter?

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Q. A JFET is a

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Q. When the ac input signal is very large the instantaneous operating point CE amplifier moves all the way between

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Q. For full wave rectification four diode bridge rectifier is claimed to have following advantages:

1. Less expensive transformer
2. Small size transformer
3. Suitable for higher voltage applications

Which of these are correct?

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Q. Which class of amplifiers operates with least distortion?

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Q. Which configuration has high input impedance and low output impedance?

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Q. Assertion (A): An ac amplifier uses coupling capacitors at input and output

Reason (R): The capacitive reactance varies inversely with frequency. It is infinite for dc

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Q. Common base configuration is little used because

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Q. If the plate supply voltage for a plate modulated class C amplifier is E volts, the maximum plate-cathode voltage could be almost as high as

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Q. The changes in ambient temperature affect the open loop gain of amplifier.

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