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What is the unit of polarization?

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What is the unit of polarization?

(a) Cm

(b) Vm^-1

(c) Cm^-2

(d) Fm^2

I have been asked this question in a job interview.

My doubt is from Polarisation and Dielectrics in section Refractories & Dielectric Materials of Engineering Material & Metallurgy

1 Answer

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Right answer is (c) Cm^-2

Explanation: The unit of Polarization (P) and the Saturation Polarization (Ps) is given as coulomb per square meter (Cm^-2). Coulomb meter (Cm) is used to denote the dipole moment, whereas farad meter square (Fm^2) is used to denote electronic polarizability.

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