[amp_mcq option1=”Increases input capacitance” option2=”Decreasing area occupied” option3=”Decreasing input capacitance” option4=”Decrease in output capacitance” correct=”option3″]
The correct answer is: C. Decreasing input capacitance.
Transconductance is the ratio of the change in output current to the change in input voltage. It is a measure of how much current a transistor can source or sink for a given change in input voltage.
Input capacitance is the capacitance between the input terminal and the ground terminal of a transistor. It is a measure of how much charge is stored on the input terminal for a given change in input voltage.
Output capacitance is the capacitance between the output terminal and the ground terminal of a transistor. It is a measure of how much charge is stored on the output terminal for a given change in output voltage.
Increasing the transconductance of a transistor will decrease the input capacitance. This is because the higher the transconductance, the less charge is required to change the output current. This means that there is less charge stored on the input terminal, which decreases the input capacitance.
The other options are incorrect. Option A is incorrect because increasing the transconductance will decrease the input capacitance, not increase it. Option B is incorrect because increasing the transconductance will not affect the area occupied by the transistor. Option D is incorrect because increasing the transconductance will not decrease the output capacitance.