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The free electrons in practical dielectrics are due to ________(a) There are no free electrons(b) Conductors(c) Impurities(d) Displacement currents |
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Answer» The correct option is (c) Impurities Easy explanation: Ideally, dielectrics are insulators and do not contain any free electrons. But no dielectric is a perfect dielectric, hence the free electrons are due to impurities present in each dielectric. |
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