Understanding Electric Circuits

The video tutorial explains the concept of electrical circuits, focusing on complete, open, and closed circuits. A complete circuit allows electrons to flow from an energy source through a device and back, providing power. If the path is broken, it becomes an open circuit, stopping the flow of electrons and power. A closed circuit is a continuous path allowing current to flow. Examples include a lamp circuit with a switch in the off state as an open circuit and in the on state as a closed circuit.

What is a complete circuit?

• A circuit that only works with batteries

• A path that allows electrons to flow from a source through a device and back

• A path that is interrupted and does not allow electron flow

• A circuit that only works with solar panels

What happens when a circuit is broken?

• The circuit becomes a closed circuit

• Electrons flow faster

• The device receives more power

• The flow of electrons stops

What is an open circuit?

• A circuit that allows current to pass

• A circuit that only works with AC current

• A circuit that does not allow current to pass

• A circuit that is always closed

When can current flow in a circuit?

• When the circuit is made of copper

• When there is a break in the circuit

• When the circuit is closed

• When the circuit is open

What is an example of a closed circuit?

• A disconnected battery

• A lamp with the switch in the off state

• A lamp with the switch in the on state

• A broken wire