Two coils, held in fixed positions, have a mutual inductance of 225 µH. What is the peak emf in one coil when the current in the other coil is i(t) = 14.0 sin(1.10 x 10 t), where i is in amperes and t is in seconds?

A transformer has a primary coil with 150 turns of wire and a secondary coil with 300 turns. An AC power supply connected across the primary coil has a voltage given by the function  Δv = (160 V)sin(?t).  What rms voltage (in V) is measured across the secondary coil?

LRC circuit contains a parallel-plate capacitor with plates of area 23.50 m^2, separated by 1.47 mm and completely filled with dielectric (dielectric constant k = 3.32), 20.87 Ohm resistor and toroidal solenoid inductor with 979.50 turns of wire, a cros-sectional area of 2.66 cm^2, and mean radius of 4.42 cm. The components are connected in series to an emf source operating with a 51.46 V amplitude at 109.38 Hz. What is resonance angular frequency (rad/s)?

A loop of wire has a self-inductance of 5.5 mH.  You pass a current of 9.0 Amps though the loop, and then drop the current to 0 at a contastant rate over 3.5 seconds. What is the EMF generated?