Quick Answer: The Coaxial Cylinders apparatus is a cylindrical capacitor made of an inner and an outer conductor on a common axis, for studying capacitance and electrostatic fields. Terminals on both cylinders connect to a capacitance meter or test circuit.
Last updated: October 2026
Key Features
Inner and outer cylindrical conductors arranged coaxially
Terminals on each cylinder for a meter, supply or experimental circuit
Space between the cylinders for comparing dielectric materials
Used to show how capacitance depends on conductor geometry, separation and length
About This Product
Students measure the capacitance between the two cylinders, then change the material between them and compare the readings with the value expected for a cylindrical capacitor. The symmetrical layout also helps explain the radial electric field between coaxial conductors and the role of the dielectric constant. Educational Instrument can arrange export supply of the Coaxial cylinders to Republic of the Congo, South Sudan, Sierra Leone, Japan and Saint Lucia.
Frequently Asked Questions
What is measured with the Coaxial Cylinders apparatus?
The capacitance between the inner and outer cylinders, using a capacitance meter or measuring circuit connected to their terminals, with and without a dielectric between them.
