GENERAL KNOWLEDGE

Detailed explanation-1: -In order to prevent a short circuit, the circuit must also contain something to use the electricity – like a light bulb or a resistor or a buzzer. These are termed loads.

Detailed explanation-2: -A load lamp is simply a common light bulb in series with a device being tested. My purpose here is to give a more detailed account of how to use it. Here we will learn how to determine what wattage light bulb to use and what to expect when something is working right versus something being wrong.

Detailed explanation-3: -Most circuits have devices such as light bulbs that convert electrical energy to other forms of energy. In the case of a light bulb, electrical energy is converted to light and thermal energy. Many circuits have switches to control the flow of current.

Detailed explanation-4: -A light bulb would be an example of a load and there must always be a return path so the electrons have a way to come back to the power source from the load.