When you move the magnet into a stationary, conducting coil, the magnet sees an electric field arise with a certain amount of energy, and that field produces a current in the conductor dependent on the energy of the field that the magnet generates.
This paper assesses the technical and economic potential of tokamak power plants which utilize superconducting coil (SC) or normal conducting coil (NC) designs as a function of aspect ratio (A).
The main magnetic field is created by a superconducting magnet system that is accompanied by two sets of normal conducting coil groups, the Control Coils inside the plasma vessel and the Trim Coils (TC) positioned outside of the cryostat.
The micro electromagnetic probe consists of a protruding (out-of-chip), sharp Permalloy needle embedded into a three-dimensional gold conducting coil.
A proximity focusing RICH will be installed in the forward direction of the Belle II spectrometer, inside a super conducting solenoid coil with the magnetic field of 1.5 T.
For a slower control of the plasma shape, the superconducting equilibrium field (EF) coils outside toroidal field coils are used, while for a fast control of the plasma position, in-vessel normal conducting coils (IV coil) are used.
The impedance values of the coil are measured in the air and with a conducting plate above the coil at discrete frequencies from 2 kHz to 70kHzz.
To fine tune the magnetic configuration, shift the plasma axis and to modify the plasma edge an additional set of ten normal conducting control coils will be mounted.
Ten normal conducting control coils will be installed inside the plasma vessel of the WENDELSTEIN 7-X (W7-X) stellarator to modify the magnetic configuration at the plasma edge.
Electromagnetic acoustic transducers (EMATs) often have an electrically conducting surface behind the coil which we refer to as a back-plate, which could be there to act as an electromagnetic screen or could be a permanent magnet which is part of standard EMAT design.
Using radio-wave induction, a varying electric current in a transmitter coil of conducting wire in the road bed produces a similarly varying current in a receiver coil sitting just above in the vehicle.
