Here is a great collection of touch switch circuits. A touch switch is an electronic device that enables us to control a circuit by simply touching a sensor. Simple touch switch circuit with 4011 – ...

LDRs or Light Dependent Resistors are very useful especially in light/dark sensor circuits. Normally the resistance of an LDR is very high, sometimes as high as 1000 000 ohms, but when they are ...

This circuit diagram joins a cell, a switch and two bulbs. Click on the next slide to see what the circuit might look like if you built it. Image caption, ...

If your wiring matches my description (diagram 1) or what's shown in diagram 2 above then proceed. Be advised that for diagram 2 layouts you will have to adjust my instructions accordingly.

This circuit and circuit diagram contain a cell and two lamps ... continues to flow along remaining paths in the circuit. Switches can be added to a parallel circuit to turn components on and ...

The diagrams and photos show how to wire up the fuel pump and oil-pressure switch to a commonly available, industry standard, ISO-type "1 Form C single pole/double throw" (SPDT) relay.

In the 120V circuits of homes and offices, the grounded conductor is the same as the neutral. Typically, when wiring a switch for a 120V load (e.g., a light) only one wire comes to the switch and only ...