What do u mean by saturation current?

Definition of saturation current : the limiting current through an ionized gas or an electron tube such that further increase of voltage produces no further increase in current.

What is saturation current in photoelectric effect?

The maximum value of the photoelectric current is called the saturation current. Saturation current implies that all the photoelectrons emitted by the emitter are immediately collected by the anode.

What is saturation current in pn junction diode?

The (reverse) saturation current of a p-n junction diode is the current caused by the diffusion of minority carriers from the n-type/p-type regions (quasi-neutral regions) to the depletion region.

What is saturation current in solar cell?

Saturation current (I0) and ideality factor (n) of a p-n junction solar cell are an indication of the quality of the cell. This increase in n indicates that after exposure, the recombination current in the cells’ space charge region increased due to the light-induced formation of metastable defects.

What is saturation current and stopping potential?

Saturation current changes with the intensity of the incident light if it’s frequency is above the threshold value. KE of electron, E = hυ – ω0. To stop the current, some reverse voltage is applied. The minimum value of this voltage, which can make the current zero, is called the stopping potential.

What is saturation current in BJT?

Saturation, as the name might imply, is where the base current has increased well beyond the point that the emitter-base junction is forward biased. In fact, the base current has increased beyond the point where it can cause the collector current flow to increase.

Why does a saturation current occur?

When the voltage is increased up to a certain level, every electron that gets released is able to reach the other electrode, but as the number of electrons getting released is constant, current too becomes constant (saturation current) and no further increase in voltage will cause increase in current.

Is saturation current diode?

The saturation current is a combination of the generation current caused by thermal generation of electron hole pairs within the depletion region of the diode and the diffusion current due to minority carriers in the n and pregions diffusing across the depletion region.

What is the normal range for saturation?

Oxygen saturation level in healthy patients is considered normal between 97 percent and 99 percent. Patients who have normal hemoglobin levels can have a saturation level of 95. When the amount of oxygen in the blood is reduced, a condition known as hypoxemia results, and treatment is then required.

What is meant by saturation?

Saturation is a color term commonly used by (digital / analog) imaging experts. Saturation is usually one property of three when used to determine a certain color and measured as percentage value. Saturation defines a range from pure color (100\%) to gray (0\%) at a constant lightness level.

What does saturation mean in the water cycle?

This constant movement of water from the earth into the atmosphere and back is known as the water cycle. Some of the water, which falls on the land percolates through the soil until it, reaches a zone of saturation. Below the zone of saturation is a solid rock through which water cannot percolate.

What is the top zone of saturation called?

The zone of saturation is filled with water, and is separated from the zone of aeration by the water table. The top of the SATURATED zone is called the water table.