All Questions
3
questions
1
vote
1
answer
44
views
Back EMF in electromagnetic coil
I am trying to quantify the back EMF generated while actuating an electromagnetic coil, this would be included in a general calculation to estimate the coil output under a variety of conditions. My ...
- 11
5
votes
1
answer
529
views
Current through a solenoid: magnetic field gives a staircase graph
We were running current through a solenoid coil with an iron core, and measuring the resultant magnetic field strength. We expected a purely linear relation for the "current-field strength" ...
- 51
0
votes
2
answers
2k
views
Misunderstanding of Lenz's law
The increasing current (and hence increasing flux and changing magnetic field) in the outer solenoid induce a current in the inner solenoid.
The current in the outer solenoid produces a magnetic ...
