The secondary coil of a stepup transformer provides the voltage that operates an electrostatic air lter. The turns ratio of the transformer is 43:1. The primary!r coil is plugged into a standard 120V outlet. The current in the secondary coil is 1.2 x 10'3 A. Find the power consumed by the air lter. Number n Units V A circular coil of radius 0.110 m contains a single turn and is located in a constant magnetic field of magnitude 0.310 T. The magnetic field has the same direction as the normal to the plane of the coil. The radius increases to 0.300 m in a time of 0.0840 s. (a) Determine the magnitude of the emf induced in the coil. (b) The coil has a resistance of 0.630 0. Find the magnitude of the induced current. (a) Number i Units (b) Number i Units v