Question

what is a circuit?
a closed loop of electricity
a type of battery
a form of insulation
a power line

Explanation:

To determine the correct answer, we analyze each option:

• "A closed loop of electricity": This matches the definition of an electric circuit, which is a path for electric current to flow, typically a closed loop.
• "A type of battery": A battery is a source of electrical energy, not a circuit.
• "A form of insulation": Insulation is used to prevent electrical flow, not related to the definition of a circuit.
• "A power line": A power line is a conductor for electricity, but not the entire circuit.

Answer:

A. A closed loop of electricity