Question

The intensity of magnetization of a magnet having a square cross-section of
side 2 cm and magnetic strength of 0.8 mWb is

(A) 2.4 Wb/m2 (B) 2.6 Wb/m2 (C) 1.8 Wb/m2 (D) 2.0 Wb/m2​

Answer 1

Answer:

OPTION D 2.0 Wb/m2

Explanation:

Here, m = 0.8mWb = 8 * 10^-4

A = r^2 = (2*10^-2)^2 = 4*10^-4

I = m/A = (8 * 10^-4)/(4*10^-4) = 2 Wb/m2

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