First slide

Magnetic properites of materials.

Question

If the area of I-H hysteresis loop and B-H hysteresis loop are denoted by A₁ and A₂ respectively, then

Easy

A

$A_{2} = μ_{0} A_{1}$
B

$A_{2} = A_{1}$
C

$A_{2} = (A_{1} / μ_{0})$
D

$A_{2} = {μ_{0}}^{2} A_{1}$

Solution

In SI units
$B = μ_{0} (H + I) or dB = μ_{0} dH + μ_{0} dI ∴ ∮ H \cdot dB = μ_{0} ∮ H \cdot dH + μ_{0} ∮ H \cdot dI or ∮ H \cdot dB = μ_{0} ∮ H \cdot dI (∵ ∮ H \cdot dH = 0)$
or area of B-H loop = $μ_{0}$ (area of I-H loop).

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App