Current limiting resistor for LED or other loads
How to reduce voltage for LED and others loads. We use a limiting current resistor reduce current or voltage in a series circuit. So easy to do Read more
Homeschooling
How to solder on circuit board
Why project does not work? Sometimes solder joint is bad. You need to know How to solder a circuit board. Easy but have to practice! Read more
Voltmeter: Working Principle and How to Increase the Range
My son want to make a simple DC voltmeter on 0-10V range by Convert a galvanometer to voltmeter.Galvanometer DC1mA is cheap and easy with one resistor only. Read more
How simple series circuit works
The experiment on the simple series circuit. To understand current flow and voltage across all devices in the circuit. Read more