Question

plastic is an insulator in circuits. * 1 point true false
a bulb lights up with an insulator in a circuit. * 1 point true false
conductors are unnecessary in circuits. * 1 point true false
insulators protect circuit components. * 1 point true false

Explanation:

1. Plastic does not conduct electric current, so it is an insulator.
2. Insulators block current flow, so a bulb cannot light up with only an insulator in the circuit.
3. Conductors allow current flow, which is essential for circuits to function.
4. Insulators prevent unintended current leaks, protecting circuit components and users.

Answer:

1. True
2. False
3. False
4. True