Question

What is the function of a safety device?

• A. To complete the circuit, so that high current flows through the circuit.
• B. To break the circuit when a high current flows through the circuit.
• C. To break the circuit as soon as current flows through the circuit.
• D. To allow small amount of current to pass through the circuit.

Answer 1

The correct option is B

To break the circuit when a high current flows through the circuit.

A safety device is used to break the circuit when a high current flows, so that equipments of the circuit can be saved from damage.