A solenoid is made by tightly wrapping a wire 0.30mm in diameter around a 4.0mm diameter cylinder. a) If the inductance of this solenoid is to be 10µH what must the length of the winding be?
If the current in the solenoid starts at 0 A and is increased steadily to 2.0A in a time of 45.5msec, what is the EMF induced
in the solenoid?