engineering recuitment MP ITI Training Officer Mock Test 2024 Electrician and Wireman Electromagnetism
Total flux density of magnetic core is________
1
\(B = \frac{\phi }{A}\)
2
\(B = \frac{A}{\phi }\)
3
\(B = \frac{L}{\phi }\)
4
\(B = \frac{\phi }{L}\)