Download Aptitude Crack
img not found img not found

Materials and Components - Engineering

Q1:

Assertion (A): In ionic dielectrics, P = Pe + Pi. Reason (R): In ionic crystals, permanent electric dipole moment is zero.

A Both A and R are true and R is correct explanation of A

B Both A and R are true but R is not correct explanation of A

C A is true but R is false

D A is false but R is true

ANS:A - Both A and R are true and R is correct explanation of A

In ionic dielectrics μp = ∑i ei ri and Po = 0. Therefore P = Pe + Pi.