GATE IN 2019 Paper 1 — page 7

Questions 19–21 of 65. Imported answers require review unless explicitly marked reviewed.

If each of the values of inductance, capacitance and resistance of a series LCR circuit are doubled, the Q-factor of the circuit would

Your answerChoose one option.

reduce by a factor

reduce by a factor 2

increase by a factor

increase by a factor 2

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In the circuit shown below, the input voltage

is positive. The current (

) - voltage (

) characteristics of the diode can be assumed to be

under the forward bias condition, where

is the thermal voltage and

is the reverse saturation current. Assuming an ideal op-amp, the output voltage

of the circuit is proportional to

Your answerChoose one option.

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The correct biasing conditions for typical operation of light emitting diodes, photodiodes, Zener diodes are, respectively

Your answerChoose one option.

forward bias, reverse bias, reverse bias

reverse bias, reverse bias, forward bias

forward bias, forward bias, reverse bias

reverse bias, forward bias, reverse bias

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2019 · Paper 1