Current Carrying Coil
Current Carrying Coil - Related Videos
09:00
Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
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Cited by 1 •
2013
Silver nanowires can simultaneously transport electrons and optical information in the form of surface plasmons. A procedure is described here to realize such a shared circuitry and the limitations at propagating both information carriers are evaluated.
01:25
Magnetic Force On A Current-Carrying Conductor
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2023
Moving charges experience a force in a magnetic field. Since the magnetic fields produced by moving charges are proportional to the current, a conductor carrying a current creates a magnetic field around it. Consider a compass placed near a current-carrying wire. The wire experiences a force that aligns the needle of the compass tangentially around the wire. Thus, the current-carrying wire produces concentric circular loops of magnetic field. The magnetic field generated by a wire can be...
01:22
Magnetic Force On Current-Carrying Wires: Example
0 Views •
2025
In a magnetic field, moving charges encounter a force. If a wire contains these moving charges, i.e., if the wire is carrying a current, then a force acts on the wire as well. Consider a pair of flexible leads holding a wire that is 40 cm long and 10 g in weight in a horizontal position. The wire is placed in a constant magnetic field of 0.40 T, as shown in Figure 1(a). Determine the magnitude and direction of the current flowing in the wire needed to remove the tension in the supporting leads.
06:17
Quantifying the Relative Thickness of Conductive Ferromagnetic Materials Using Detector Coil-Based Pulsed Eddy Current Sensors
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Cited by 10 •
2020
Here, we present a protocol to quantify the relative thickness (i.e., thickness as a percentage with respect to a reference) of conductive ferromagnetic materials using detector coil-based pulsed eddy current sensors, while overcoming the calibration requirement.
07:00
How to Use the H1 Deep Transcranial Magnetic Stimulation Coil for Conditions Other than Depression
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Cited by 13 •
2017
The H1 deep transcranial magnetic stimulation coil is FDA-cleared for the treatment of depression. We demonstrate how to utilize the H1 for other conditions, such as auditory hallucinations and PTSD, by moving the helmet to different locations over the subject's skull.
FAQs
Each wire segment contributes its own magnetic field, and the fields add together inside and around the coil. Their combined effect gives the coil a coordinated magnetic pattern rather than isolated contributions from separate pieces of wire. This superposition explains why changing the arrangement of the turns can alter the resulting field and its usefulness in magnetic devices.
Current direction determines the direction of the magnetic field produced by the coil. Reversing that current therefore changes the field orientation, while changing the amount of current changes field strength. This controllable relationship lets a coil influence magnetic forces in a selected way, which is central to electromagnets and to systems that use magnetic effects for operation.
The field strength is influenced by three linked factors identified for the coil: the electric current, the number of turns, and the coil’s geometry. Changing any of these can modify the combined magnetic effect, although no single universal formula is specified here. Considering all three helps explain why differently constructed coils can produce different magnetic behavior.
Coil geometry influences how contributions from the wire segments are arranged and combined. Consequently, two coils can produce different magnetic effects when their physical designs differ, even if their electrical current is also considered. Examining geometry is necessary when relating a coil’s construction to the magnetic field and forces it can produce.
A suitable investigation can examine one coil characteristic at a time, such as current, number of turns, geometry, or current direction. The resulting magnetic-field behavior can then be compared as that characteristic changes. Separating these variables helps identify which aspect affects field strength or direction while keeping the coil’s role in electromagnetism clear.
The same electromagnetic principle supports several technologies. Current carrying coils form the working basis of electromagnets, solenoids, motors, generators, inductors, and magnetic sensing systems. Their specific roles differ by device, but each application depends on the relationship between electric current and the magnetic field produced by the coil. This makes the coil a shared element across many systems.
In physics, the coil provides a practical model for investigating how electricity and magnetism are related. Students or researchers can connect current direction with field direction, then consider how current, turn count, and geometry influence field strength. These observations link an adjustable electrical input to magnetic behavior and help explain how magnetic forces can be controlled in physical systems.