Electrical Concepts Quiz

What is the definition of voltage?

• Energy per coulomb

• The rate of flow of electrical charge

• Reduces the flow of charge

• Current per resistance

What does the symbol 'V' represent in the context of voltage?

• Current in amperes

• Voltage in volts

• Charge in coulombs

• Energy in joules

What is the definition of resistance?

• Energy per coulomb

• Reduces the flow of charge

• The rate of flow of electrical charge

• Voltage per ampere

How does the earth wire contribute to electrical safety in a plug?

• Provides an AC Voltage through a fuse at 230 V and 50 Hz

• Completes the circuit and returns the current to the supply

• Connects the case to Earth to help prevent fires

• Provides a DC Voltage through a fuse at 230 V and 50 Hz

What voltage and frequency does the live wire provide in a plug?

• 110 V and 60 Hz

• 230 V and 50 Hz

• 230 V and 60 Hz

• 110 V and 50 Hz

Which wire in a plug is responsible for returning the current to the supply?

• Live wire

• Neutral wire

• Earth wire

• Fuse wire

What is the purpose of the fuse in a plug?

• To provide AC Voltage

• To complete the circuit

• To protect the circuit by breaking if the current is too high

• To connect the case to Earth

Which wire in a plug is directly connected to the fuse?

• Live wire

• Neutral wire

• Earth wire

• Cable grip

Identify the wires that are connected to the live terminal.

Match the colour to the name of the wire in a plug.

• Live wire

• Brown

• Earth wire

• Green and yellow

• Neutral wire

• Blue

• Not a wire colour

• Red