as calculated from the intensities of spectral lines from different energy levels
Addition of a discrete amount of energy to a system that changes it usually from a state of lowest energy (ground state) to one of higher energy (excited state). For example, in a hydrogen atom, an excitation energy of 10.2 electron volts is required to move the lone electron from its ground state to its first excited state. The excitation energy stored in excited atoms and nuclei is usually emitted as ultraviolet radiation from atoms and as gamma radiation (see gamma ray) from nuclei as they return to their ground states
Programmable voltage provided for bridge measurements See also switched excitation channels, full-bridge, and half-bridge
The external application of electrical voltage current applied to a transducer for normal operation
putting energy into the spin system; if a net transverse magnetization is produced, an NMR signal can be observed
The act of creating magnetic lines of force from a motor winding by applying voltage
something that agitates and arouses; "he looked forward to the excitements of the day"
The process of imparting to an atom or an ion an amount of energy greater than it has in its normal or least energy state
The addition of energy to a system, thereby transferring it from its ground state to an excited state Excitation of a nucleus, an atom, or a molecule can result from absorption of photons or from inelastic collisions with other particles
1 An external force, or other input, applied to a system that causes the system to respond in some way Also called stimulus
creating a magnetic field; passing current through a conductor to create an electromagnetic field
In quantum physics, an object such as an atom or an elementary particle is exicted if it has more than its minimum possible energy
Physiology. The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation
The addition of energy to a system, transferring it from its ground state to an excited state Excitation of a nucleus, an atom, or a molecule can result from absorption of photons or from inelastic collisions with other particles
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