Introduction to Electric Circuits

The video tutorial explains electric circuits, which are complete closed paths for electric charges to flow. It covers the components of a circuit, including the energy source, load (resistance), and switch. The tutorial also distinguishes between open and closed circuits, explaining that a closed switch allows current to flow, lighting the bulb, while an open switch stops the flow.

What is an electric circuit?

• A path that is always open

• A device that stores electric energy

• A type of battery

• A complete closed path for electric charges

Which of the following is NOT a component of an electric circuit?

• Source of energy

• Load or resistance

• Switch

• Transformer

In the described circuit, what role does the battery play?

• It is the resistance

• It acts as the load

• It functions as the switch

• It is the source of energy

Why might a light bulb not light up in a circuit?

• The battery is too powerful

• The circuit is open

• The wires are too long

• The bulb is too small

What must be done to allow current to flow in a circuit?

• Open the switch

• Add more resistance

• Close the switch

• Remove the battery