A straight conductor with a length of l = 20 cm is placed in a uniform magnetic field with induction

A straight conductor with a length of l = 20 cm is placed in a uniform magnetic field with induction B = 0.01 T (the lead wires are outside the field). Determine the force F acting on the conductor if a current flows through it I = 50 A, and the angle between the direction of the current and the vector of magnetic induction φ = 30.

The force acting on a conductor with a current in a magnetic field is called the Ampere force and is determined from the equation
F = B * l * I * sinφ

Let’s write the length of the conductor in SI units:
l = 20cm = 0.2m

Let’s plug the data into the equation:
F = 0.01T * 0.2m * 50A * sin30 = 0.01 * 0.2 * 50 * 0.5 = 0.05N