Calculate the number of turns in an inductor with a ferromagnetic core when the inductance is 0.004H, the current changes from 5A to 7A and the flux changes from 760 to 800 ‚Äö√Ñ√∂‚àö‚Ä†¬¨¬• Wb.$

Calculate the number of turns in an inductor with a ferromagnetic core

1.	Calculate the number of turns in an inductor with a ferromagnetic core when the inductance is 0.004H, the current changes from 5A to 7A and the flux changes from 760 to 800 ‚Äö√Ñ√∂‚àö‚Ä†¬¨¬• Wb.$
A.	100
B.	200
C.	300
D.	400
Answer» C. 300