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Current Electricity — Science STD 9 — Question

Maharashtra BoardEnglish MediumSTD 9ScienceCurrent Electricity2 Marks
Question
Wood and glass are good insulators.
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Answer

  • Those substances which have infinitely high electrical resistance are called insulators.
  • Wood and glass have high resistance and negligible free electrons for conduction of electricity.
  • Hence, wood and glass are good insulators.

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