Introduction to Electrical circuits

Front

Which terminal of a cell is represented by the longer line?

Back

Positive terminal of a cell is represented by the longer line.

Front

Why do we use circuit diagrams?

Back

Circuit diagrams are used to visually represent electrical circuits.

Front

What does the current in a circuit represent?

Back

The current represents the flow of electrons around the circuit.

Front

What is another name for potential difference?

Back

Voltage is another name for potential difference.

Front

What does a battery symbol consist of in circuit diagrams?

Back

A battery symbol consists of two or more cell symbols put together.

Front

What is an electrical circuit?

Back

An electrical circuit is a closed loop that allows electric current to flow.

Front

What is the role of a resistor in a circuit?

Back

A resistor limits the flow of electric current in a circuit.

Front

What is the unit of electric current?

Back

The unit of electric current is the Ampere (A).

Front

What is the function of a switch in a circuit?

Back

A switch controls the flow of current by opening or closing the circuit.

Front

What is a series circuit?

Back

A series circuit is a circuit where components are connected end-to-end, so the current flows through each component.