variable inductor การใช้

• Most radios use a variable capacitor; older automobile radios often used variable inductors.
• Probably the most common type of variable inductor today is one with a moveable ferrite magnetic core, which can be slid or screwed in or out of the coil.
• A "'phasor "'is a network of capacitors and variable inductors used to adjust the relative amplitude and phase of the current being distributed to each tower in a directional array.