The magnitude of torque is represented by M = I, where I is the moment of inertia of the body about the axis of rotation. For a circular disk and a circular ring with the same amount of mass, which one has larger moment of inertia? Multiple choice question. The circular ring has larger moment of inertia. They cannot be compared. The circular disk has larger moment of inertia. The circular disk and circular ring has the same moment of inertia