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Page "Field-effect transistor" ¶ 14
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positive and voltage
When a positive voltage is applied to anode of the diode from the circuit, more holes are able to be transferred to the depleted region, and this causes the diode to become conductive, allowing current to flow through the circuit.
This often matches conventional current direction, because in many circuits the power supply voltage is positive with respect to ground.
From the Shockley ideal diode equation given above, it might appear that the voltage has a positive temperature coefficient ( at a constant current ), but usually the variation of the reverse saturation current term is more significant than the variation in the thermal voltage term.
Likewise a positive gate-to-source voltage increases the channel size and allows electrons to flow easily.
Conversely, in an n-channel enhancement-mode device, a positive gate-to-source voltage is necessary to create a conductive channel, since one does not exist naturally within the transistor.
In a p-channel depletion-mode device, a positive voltage from gate to body creates a depletion layer by forcing the positively charged holes away from the gate-insulator / semiconductor interface, leaving exposed a carrier-free region of immobile, negatively charged acceptor ions.
A positive voltage of 5 to 10 kilovolts is applied to the tip.
When the voltage of C1 right-hand plate ( Q2 base voltage ) becomes positive and reaches 0. 6 V, Q2 base-emitter junction begins diverting a part of R2 charging current.
Cl-causes hyperpolarization within the neuron, decreasing the probability of an action potential firing as the voltage becomes more negative ( recall that for an action potential to fire, a positive voltage threshold must be reached ).
If the inverting input is held at ground ( 0 V ) directly or by a resistor, and the input voltage V < sub > in </ sub > applied to the non-inverting input is positive, the output will be maximum positive ; if V < sub > in </ sub > is negative, the output will be maximum negative.
This means that the op-amp is set up as a comparator to detect a positive voltage.
* The large voltage swings and requirement for positive and negative supplies increases power consumption of the interface and complicates power supply design.
Control signals have the opposite polarity ; the asserted state is positive voltage and the inactive state is negative voltage.
Negative voltage attracts positive metal ions toward the wires.
For either mode, a more positive gate voltage corresponds to a higher current for N-channel devices and a lower current for P-channel devices.
Conversely, increasing the positive DC voltage on the plate will attract more electrons toward it.
In the class A triode amplifier, an anode resistor would be connected between the anode and the positive voltage source.
A second electrode, the anode or plate, will attract those electrons if it is at a more positive voltage.
The controlling voltage was superimposed onto the bias voltage, resulting in a linear variation of plate current in response to both positive and negative variation of the input voltage around that point.

positive and attracts
In an electrostatic scoop a negative electric field on a forward grid electrostatically attracts the positive charged ions present in interstellar space and thus draws them into the ramjet engines.
When the gate is more positive, it attracts electrons, inducing an n-type conductive channel in the substrate below the oxide, which allows electrons to flow between the n-doped terminals ; the switch is on.
For different signs we get a push, that repels the positive mass but attracts the negative mass.
The electron is repelled from other electrons due to their negative charge, but it also attracts the positive ions that make up the rigid lattice of the metal.
The electronegative oxygen atom contained in the water molecule attracts electrostatically to the positive charge on the metal ion.
This system is based on positive feedback ( the deposit of pheromone attracts other ants that will strengthen it themselves ) and negative ( dissipation of the route by evaporation prevents the system from thrashing ).
A conduction electron in an ionic crystal or a polar semiconductor repels the negative ions and attracts the positive ions.
However, Vic Garbarini, for Rolling Stone, was less positive and felt " this is music that attracts but hasn't the gravity or resonance to hold your attention ... Hutchence seems dissociated from his material, dispassionately competent ... the wealth of musical gifts on the album makes the one-dimensional delivery stand out all the more dramatically ".
Positive mental attitude ( PMA ) is the philosophy that having an optimistic disposition in every situation in one's life attracts positive changes and increases achievement.

positive and electrons
It is this atomic nucleus that contains the positive charge of electricity holding these negatively charged electrons in their orbits ; ;
An atom containing an equal number of protons and electrons is electrically neutral, otherwise it has a positive charge if there are fewer electrons ( electron deficiency ) or negative charge if there are more electrons ( electron excess ).
Thomson postulated that the low mass, negatively charged electrons were distributed throughout the atom, possibly rotating in rings, with their charge balanced by the presence of a uniform sea of positive charge.
However, the hydrogen-1 atom has no neutrons and a positive hydrogen ion has no electrons.
Unlike the plum pudding model, the positive charge in Nagaoka's " Saturnian Model " was concentrated into a central core, pulling the electrons into circular orbits reminiscent of Saturn's rings.
These were discovered by Carl D. Anderson in 1932 and named positrons ( a contraction of " positive electrons ").
This inward current is carried externally by electrons moving outwards, negative charge moving one way constituting positive current flowing the other way.
* In a cathode ray tube, it is the positive terminal where electrons flow out of the device, i. e., where positive electric current flows in.
In a tube, the anode is a charged positive plate that collects the electrons emitted by the cathode through electric attraction.
In this model, the atom is composed of electrons ( which Thomson still called " corpuscles ", though G. J. Stoney had proposed that atoms of electricity be called electrons in 1894 ) surrounded by a soup of positive charge to balance the electrons ' negative charges, like negatively charged " plums " surrounded by positively charged " pudding ".
to imply a very small nucleus of the atom containing a very high positive charge ( in the case of gold, enough to balance about 100 electrons ), thus leading to the Rutherford model of the atom.
This work culminated in the solar-system-like ( but quantum-limited ) Bohr model of the atom in the same year, in which a nucleus containing an atomic number of positive charge is surrounded by an equal number of electrons in orbital shells.
In this model, the electrons were free to rotate within the blob or cloud of positive substance.
The nucleus is made up of positively charged protons and neutral neutrons, while the electron cloud consists of negatively-charged electrons which orbit the nucleus to balance out the positive charge of the protons.
Here the negatively charged electrons are attracted to the positive charges of both nuclei, instead of just their own.
Electric currents in sparks or plasma are flows of electrons as well as positive and negative ions.
The moment contact is made, the free electrons of the conductor are forced to drift toward the positive terminal under the influence of this field.
The breakdown process forms a plasma that contains enough mobile electrons and positive ions to make it an electrical conductor.
Due to their lower mass, the electrons in a plasma accelerate more quickly in response to an electric field than the heavier positive ions, and hence carry the bulk of the current.
The carriers move in the direction of decreasing concentration, so for electrons a positive current results for a positive density gradient.

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