An engineer sees that the current in a coil of conducting wire goes from i1 = 0.200 A to i2 = 1.50 A in a time interval of Δt = 0.200 s. Assuming the coil's inductance is L = 3.00 mH, what is the magnitude of the average induced emf (in mV) in the coil for this time interval?

F500 j of energy were added to 1 kg of each of these samples, which would experience the least temperature increase?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Positive ions differ from neutral atoms in that