Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Net dipole moment of a polar linear isotropic dielectric substance is not zer

Question

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Net dipole moment of a polar linear isotropic dielectric substance is not zero even in the absence of an external electric field.
Reason (R) : In absence of an external electric field, the different permanent dipoles of a polar dielectric substance are oriented in random directions.
In the light of the above statements, choose the most appropriate answer from the options given below :

Options:

Answer:

D

Solution:

A : Since polar dielectrics are randomly oriental $P_{net} = 0$ .
R : If $E$ is absent, polar dielectric remain polar \& are randomly oriented.

TestHub · Accepted Answer

A : Since polar dielectrics are randomly oriental P net ​ = 0 . R : If E is absent, polar dielectric remain polar \& are randomly oriented.

Physics - Electrostatics Question with Solution | TestHub

Options:

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