electrical circuits and symbols

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows current to flow. It has no breaks or gaps.

Front

What is an open circuit?

Back

An open circuit is a broken electrical loop that prevents current from flowing. It has a gap or break.

Front

What does the symbol of a cell represent in a circuit?

Back

The symbol of a cell represents a source of electrical energy, such as a battery.

Front

What does the symbol of a bulb represent in a circuit?

Back

The symbol of a bulb represents a light source that converts electrical energy into light.

Front

What does the symbol of a voltmeter represent?

Back

The symbol of a voltmeter represents a device used to measure the voltage in a circuit.

Front

What is the function of a resistor in a circuit?

Back

A resistor limits the flow of electric current in a circuit, controlling the amount of current that passes through.

Front

What are the forms of energy produced by electricity in a circuit?

Back

Electricity can produce light, thermal (heat), sound, and mechanical energy.

Front

What is the difference between voltage and current?

Back

Voltage is the electrical potential difference that drives current through a circuit, while current is the flow of electric charge.

Front

What is a circuit diagram?

Back

A circuit diagram is a visual representation of an electrical circuit using symbols to show the components and connections.

Front

What is the purpose of a switch in a circuit?

Back

A switch is used to open or close a circuit, controlling the flow of electricity.