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‘X’ is a substance which does not allow the flow of charges through it but permits them to exert electrostatic forces on one another through it. Identify X.

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‘X’ is a substance which does not allow the flow of charges through it but permits them to exert electrostatic forces on one another through it. Identify X.

(a) Polar molecule

(b) Dielectric

(c) Non-polar molecule

(d) Equipotential

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This interesting question is from Dielectrics and Polarisation topic in division Electrostatic Potential and Capacitance of Physics – Class 12

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The correct option is (b) Dielectric

The explanation: A dielectric is a substance which does not allow the flow of charges through it but permits them to exert electrostatic forces on one another through it. A dielectric is essentially an insulator which can be polarized through small localized displacements of its charges.

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