# A ring in a magnetic field

**Electricity and Magnetism**Level 3

A conducting ring of radius \(R=10 m \) is placed in a homogeneous magnetic field, perpendicular to its plane. A constant current \( I=0.1 A\) flows through the ring. It is known that the ring breaks if its tension is greater than 5N. What is the maximum magnetic field \(B_{max}\) **in Teslas** that one can apply without breaking the ring? Neglect the magnetic field created by the current in the ring.