Download Aptitude Crack
img not found img not found

Materials and Components - Engineering

Q1:

Assertion (A): For a magnetic material M = (μr - 1) H, where M is magnetic dipole moment/m3, H is field intensity A/m and μr is relative permeability. Reason (R): μr can have any value from 0 to hundreds of thousands.

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:C - A is true but R is false

μr is always more than 1. It cannot be 0 or less than 1.