it has been mentioned that we are not supposed to add resistor while using buzzer. Why is that so?
Buzzer needs more current than the led. Adding resistor to led in series is just to limit the flow of current.
Simply because there is no need to do that so, if you want to add resistor you can add one, it will lower down the volume of your buzzer.
a resistor will reduce the current in buzzer ckt and your ckt won’t work
ss.selvaraj555,there is no use of resistor when you are working on buzzeer.The nature of buzzer is to give alert but if you connect a resistor it will not work or it will lower the sound.