Continuity test is a way to check if there is a continuous flow of electricity between two points. It's like checking if water can flow through a hose without any leaks.
To do a continuity test, you need a device called a multimeter. It has a knob that you turn to the continuity setting. You also need two points that you want to check for continuity. For example, you might want to check if there is continuity between the two ends of a wire or between two metal parts of a circuit.
Then, you touch the multimeter probes (those little pointy things at the end of the wires) to the two points you want to check. If there is continuity, it means electricity can flow from one point to the other without any problem. The multimeter will beep or light up to let you know there is continuity.
If there is no continuity, it means there is a break or a gap in the flow of electricity between the two points. It's like if there was a hole in the hose and water couldn't flow through. The multimeter won't beep or light up in this case.
Continuity testing is important to make sure that circuits are working properly and to diagnose problems. It's like checking if all the pipes in your house are working before you turn on the tap.