Risultati di ricerca
2 giorni fa · A magnetic field (sometimes called B-field) is a physical field that describes the magnetic influence on moving electric charges, electric currents,: ch1 and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.
2 giorni fa · Quantum field theory emerged from the work of generations of theoretical physicists spanning much of the 20th century. Its development began in the 1920s with the description of interactions between light and electrons, culminating in the first quantum field theory—quantum electrodynamics.
4 giorni fa · When we calculate the field energy we obtain not only a contribution from particles and forces that may be present but also a contribution from the vacuum field itself i.e. the zero-point field energy.
5 giorni fa · If we represent the magnetic dipole moment of an atom by \(\vec m\), where m for a current loop of magnitude I and area \(\hat{n} \mathrm{A}\) is \(\hat{n} \mathrm{IA} \ [\mathrm{A} \mathrm{m}]^{7}\), then it can be shown that the total magnetization \(\vec M\) of a medium is \(\mathrm{n} \vec{\mathrm{m}} \ \left[\mathrm{A} \mathrm{m ...
4 giorni fa · The propensity of a current distribution to experience torque in a magnetic field (and also create its own magnetic field) is characterized by its magnetic moment. In electrostatics, electric charge can exist as single ( monopole ) charges.
4 giorni fa · The energy of an electric field results from the excitation of the space permeated by the electric field. It can be thought of as the potential energy that would be imparted on a point charge placed in the field. Contents. Energy of a point charge distribution. Energy stored in a capacitor. Energy density of an electric field.
5 giorni fa · In this work, we focus on an infinite horizon mean-field linear-quadratic stochastic control problem with jumps. Firstly, the infinite horizon linear mean-field stochastic differential equations and backward stochastic differential equations with jumps are studied to support the research of the control problem.
