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Q15. Describe an activity to show that thermoplastic is a poor conductor of electricity.
Answers (1)
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Aim: To show thermoplastic is a poor conductor of electricity.
Materials required: A battery, conducting copper wires, an LED bulb, a small PVC (thermoplastic) rod, a metal rod.
Experiment: We make a circuit as shown. First, we connect the two ends of the copper wires with the metal rod. Next, we replace it with the PVC rod.
Observation: The LED bulb glows when the metal rod is connected but does not glow when the PVC rod is connected.
Conclusion: Thermoplastic is a poor conductor of electricity.