Question

The area of $I-H$ curve and area of $B-H$ curve are related as.

• A. area of $I-H$ curve < area of $B-H$ curve
• B. area of $I-H$ curve > area of $B-H$ curve
• C. area of $I-H$ curve = area of $B-H$ curve
• D. none of these

Answer 1

The correct option is B area of $I-H$ curve > area of $B-H$ curve

Since $B={\mu }_{o}I$
and value of ${\mu }_o=4\pi \times {10}^{-7}<<1$
therefore, $B<<I$
hence, area of $I-H$ curve will be definately more than area of $B-H$ curve