Output Devices
 

Output Devices problem 9


Part of a circuit incorporating an operational amplifier (op-amp) is shown in the figure below.




A relay is connected to the output of the op-amp circuit so that a lamp may be switched on or off.


  • Complete the figure above to show the relay connected into the circuit.


  • State and explain whether the output of the op-amp is positive or negative for the lamp to be switched on.


 

main author and content editor: Ebenezer Famadewa