To practice problem-solving strategy 29.1: faraday's law. a metal detector uses a changing magnetic field to detect metallic objects. suppose a metal detector that generates a uniform magnetic field perpendicular to its surface is held stationary at an angle of 15.0∘ to the ground, while just below the surface there lies a silver bracelet consisting of 6 circular loops of radius 5.00 cm with the plane of the loops parallel to the ground. if the magnetic field increases at a constant rate of 0.0250 t/s, what is the induced emf e? take the magnetic flux through an area to be positive when b⃗ crosses the area from top to bottom.