[amp_mcq option1=”Input current and output voltage” option2=”Output current and input voltage” option3=”Input current and input voltage” option4=”Output current and output voltage” correct=”option2″]
The correct answer is: B. Output current and input voltage.
Transconductance is the ratio of the change in output current to the change in input voltage. It is a measure of how much the output current of a device changes in response to a change in the input voltage. Transconductance is often used in amplifiers and other devices that require a large change in output current in response to a small change in input voltage.
Option A is incorrect because transconductance is not the relationship between input current and output voltage. Input current is the current that flows into the device, while output voltage is the voltage that is produced by the device. Transconductance is the ratio of the change in output current to the change in input voltage, not the other way around.
Option C is incorrect because transconductance is not the relationship between input current and input voltage. Input current is the current that flows into the device, while input voltage is the voltage that is applied to the device. Transconductance is the ratio of the change in output current to the change in input voltage, not the other way around.
Option D is incorrect because transconductance is not the relationship between output current and output voltage. Output current is the current that flows out of the device, while output voltage is the voltage that is produced by the device. Transconductance is the ratio of the change in output current to the change in input voltage, not the other way around.