The length of the active part of the conductor is 30 cm. The angle between the direction of the current and the induction

The length of the active part of the conductor is 30 cm. The angle between the direction of the current and the induction of the magnetic field is 90 °. What is the induction of the magnetic field acting on a conductor with a force of 7.2 N, if the current in it is 12 A?

given:
angle = 90 °
L = 30cm = 0.3 m
Fa = 7, 2 H
I = 12A
in =?
decision:
Fa = ILBsina- Ampere force
B = Fa / ILsin90 = 7, 2/12 × 0, 3 × 1 = 7, 2/3, 6 = 2 T
answer: 2 T