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Question 31482
JEE Physics · Hard

Electrostatics: Polarisation MCQ

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PolarisationHardQuestion 31482

Question

Polarisation P in a dielectric is:
  1. A
    Dipole moment per unit area
  2. B
    Dipole moment per unit volume
    Correct
  3. C
    Bound charge per unit area
  4. D
    Free charge per unit volume

Correct answer

Dipole moment per unit volume

Explanation

P = dp/dV = electric dipole moment per unit volume. ∇·P = −ρ_bound (bound charge comes from divergence of polarisation).

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