A solenoid is connected to a battery so that a steady current flows through it. If an iron core is inserted into the solenoid,
A solenoid is connected to a battery so that a steady current flows through it. If an iron core is inserted into the solenoid, will the current increase or decrease? Explain.
4 views
1 Answers
The current will decrease. As the iron core is inserted in the solenoid, the magnetic field increases and the flux increases. Lent’s law implies that induced e.m.f. should resist this increase, which can be achieved by a decrease in current.
4 views
Answered