want to power my electronic circuit on wall current (ac mains supply)?

hi am Prasad,

I have made a water level sensor which is basic though and previously it was running on 9v dc battery ,and in 2 days the battery started draining ,i had to bring the new one to replace it,so if I want to supply or power my circuit on wall current what will I have to do?

please guide me

randofo8 months ago

You need to get a 9V AC to DC power adapter. This is briefly explained in the elctricity lesson.

prasad2312 (author)  randofo8 months ago

how will I know what amperage adapter I require

What components are you powering?