Question

Calculate the magnetic field strength if the magnetic flux density is 4*piT.

(a) 10^-7/16*pi^2A/m

(b) 10^-7A/m

(c) 10^7A/m

(d) 10^-7A

I got this question in examination.

My doubt is from Permeability of Free Space or Magnetic Constant in section Simple Magnetic Circuits of Basic Electrical Engineering

Answer 1

Correct choice is (c) 10^7A/m

The explanation: We know that:

µ0=B/H

Substituting the value of B from the question, we get H = 10^7A/m.