Electronics Engineering Interview Question:

Explain how to measure the insulation resistance for printed circuit boards?

Submitted by: Administrator

Because opamp having high input impedance due to differential amplifier connected at the input side which is in the range of MEGA ohms and low output impedance due to power amplifier used at the output stage of opamp.
Basically saying as opamp having high input impedance and low output impedance opamp shape shown by triangle.
Submitted by: Administrator