solenoid
Sign in to savethumb|upright=1.20|An illustration of a solenoid thumb|upright=1.20|Magnetic field created by a seven-loop solenoid (cross-sectional view) described using [[field lines]] thumb|Magnetic field demonstration with solenoid-shaped insulated wire and iron filings
AI overview
A solenoid is a coil of wire wound in a tight, spiral pattern that produces a magnetic field when electric current flows through it. Solenoids are useful because they can convert electrical energy into controlled magnetic force, making them essential components in many devices like electromagnets, relays, and electric motors.
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Article
9 sectionsContents
- Physics
- Infinite continuous solenoid
- Finite continuous solenoid
- Short solenoid estimate
- Irregular solenoids
- Inductance
- See also
- References
- External links
thumb|upright=1.20|An illustration of a solenoid thumb|upright=1.20|Magnetic field created by a seven-loop solenoid (cross-sectional view) described using [[field lines]] thumb|Magnetic field demonstration with solenoid-shaped insulated wire and iron filings
A solenoid () is a type of electromagnet formed by a helical coil of wire whose length is substantially greater than its diameter, which generates a controlled magnetic field. The coil can produce a uniform magnetic field in a volume of space when an electric current is passed through it.