The purpose of the interrupter is to rapidly connect and disconnect the circuit so that the normally steady current of the battery is turned into a rapidly varying current.
22.
Amp�re's law is always valid for steady currents and can be used to calculate the-field for certain highly symmetric situations such as an infinite wire or an infinite solenoid.
23.
The original circuital law is only a correct law of physics in a magnetostatic situation, where the system is static except possibly for continuous steady currents within closed loops.
24.
These equations are the time-dependent generalization of Coulomb's law and the Biot Savart law to electrodynamics, which were originally true only for electrostatic and magnetostatic fields, and steady currents.
25.
In order to follow the time evolution of the probability of a rare event it is necessary to maintain a steady current of trajectories into the target region of configurational space.
26.
OFCD is a scheme for driving a steady current in a relaxed plasma by adding sizable oscillating perturbations to the toroidal and poloidal fields injecting both power and helicity into the plasma.
27.
Further, Amp�re derived both Amp�re's force law describing the force between two currents and Amp�re's law, which, like the Biot Savart law, correctly described the magnetic field generated by a steady current.
28.
Following his idol Bing Crosby, who had pioneered the use of the microphone, Sinatra transformed popular singing by infusing lyrics with a personal, intimate point of view that conveyed a steady current of eroticism.
29.
The main disadvantage is the need of a special preamplifier that supplies a steady current ( typically 5mA ) to the semiconductor elements and handles a special equalization than the one needed for magnetic cartridges.
30.
As the art of delivering very powerful pulses of electricity improved, Thomson noted that using pulses instead of steady current would have the great advantage of also heating the plasma, doing away with the need for the external microwave heaters.
