The magnetic induction in the core of the electromagnet is 3T, and the cross-sectional area of the core is 0.2m2.

The magnetic induction in the core of the electromagnet is 3T, and the cross-sectional area of the core is 0.2m2. What is more equal to the magnetic flux.

Magnetic flux formula:
Ф = B * S * cos (n, B)
Where
B – vectors of magnetic induction;
S is the cross-sectional area;
n is the area normal.

Usually, in such problems, the cosine is 1 and is ignored, so the record will be like this:
Ф = B * S
We substitute:
Ф = 3 * 0.2 = 0.6 (Wb)
Answer: 0.6 (Wb)