Inductive charging is used to wirelessly charge electronic devices ranging from toothbrushes to cell phones. suppose the base unit of an inductive charger produces a 1.50 ✕ 10−3 t magnetic field. varying this magnetic field magnitude changes the flux through a 16.0-turn circular loop in the device, creating an emf that charges its battery. suppose the loop area is 2.75 ✕ 10−4 m2 and the induced emf has an average magnitude of 5.50 v. calculate the time required (in s) for the magnetic field to decrease to zero from its maximum value.