Q. When negative feedback is used the fractional changes in closed loop gain are desensitized by the factor (1 + Avβ)

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Q. Which of the following statement about JFET is true?

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Q. Which of the following is the common feature between FETs and bipolars?

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Q. The current through common emitter resistor of a differential amplifier is called

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Q. For the high-pass circuit to act as a differentiator, the time constant must be

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Q. When a CE transistor is cut off

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Q. With JFETs cascade means

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Q. The bandwidth of an amplifier can be reduced by

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Q. How many cascaded stage of CE amplifiers will result in polarity inversion of the input signal?

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Q. The gain of a source follower is unity.

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Q. In a transistor, current ICBO flow when

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Q. The D.C. alpha(α) of a transistor is approximately

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Q. Which of the following statement is incorrect?

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Q. Which circuit is called swamped amplifier?

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Q. In a linear op-amp circuit

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Q. In a normally biased N-P-N transistor the main current crossing the collector junction is

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Q. An engineer designs an amplifier to have a voltage gain of 60, but when constructed it only had a gain of 50. Which of the following will increases from this type of operation?

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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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