How Does a Metal Sleeve Affect a Solenoid's Inductance?

AI Thread Summary
A metal sleeve placed over a solenoid affects its inductance by causing energy loss when alternating current flows through the solenoid. The conductive sleeve acts as a shorted turn, which disrupts the magnetic field and reduces the magnetic coupling between the solenoid's turns. This interaction leads to a decrease in effective inductance. The phenomenon highlights the impact of surrounding conductive materials on electromagnetic properties. Understanding this effect is crucial for applications involving solenoids and inductors.
Antimatter90
Messages
1
Reaction score
0
Can anyone explain the concept behind changing of inductance of a solenoid (when AC current is passing through solenoid) on moving a metal sleeve (hollow metallic pipe) over the solenoid enclosing the solenoid.
 
Engineering news on Phys.org
The conductive metal sleeve is causing energy loss when the magnetic field is changing. It acts, basically, as a shorted turn on the solenoid. This reduces the magnetic coupling of the other solenoid turns, thus reducing the effective inductance.
 

Thread '3-terminal device external modeling'

Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
View full post »

Thread 'Two capacitors, etc.'

suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
View full post »

Similar threads

Need an electromagnet to play Chess
Replies
37
Views
3K
Solenoid Lift Force Results -- Need Data Analysis
Replies
4
Views
5K
Where is the strongest intensity of an electromagnetic field produced by a solenoid?
Replies
4
Views
1K
Guiding Magnetic Fields in Solenoid Coils: Design and Material Considerations
Replies
22
Views
3K
Magnetic levitation using eddy current
Replies
10
Views
6K
Understanding self-inductance in a solenoid.
Replies
3
Views
1K
Current in circular wire surrounding infinite solenoid in a circuit
Replies
7
Views
1K
How the solenoid gets the linear motion when the current is passed in the coil?
Replies
3
Views
2K
Wind Turbine and Power Generation
Replies
4
Views
2K
Solenoid and toroid inductance puzzle
Replies
5
Views
5K

Hot Threads

Recent Insights

Back
Top