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Answer: c
Explanation: Insulators is a non-conducting material which prevents the leakage of
electric current in unwanted directions. Thus it is used to provide electrical insulation.
Insulators have several key functions, including:
1. Preventing Electrical Leakage: Insulators restrict the flow of electrical current to intended paths, preventing leakage that could be harmful or cause electrical fires.
2. Protecting against Electric Shock: By insulating conductors (such as electrical wires), insulators protect people from electric shocks.
3. Enhancing System Safety: Insulators ensure that electrical appliances, machinery, and power systems are safe to use by isolating electrical components.
4. Maintaining Circuit Integrity: They help maintain the integrity of electrical circuits by preventing short circuits and grounding issues that can disrupt electrical systems.
5. Providing Thermal Insulation: Beyond electrical insulation, they sometimes also provide thermal insulation in electrical systems, helping to manage heat generated by electrical currents.