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In low voltage and electronics Leakage Current is any current that flows when the ideal current is zero.
In medium and high voltage applications it is the current that flows either through the body or over the surface of an insulator. Leakage current often arises when outdoor insulation is submitted to conductive fog (sea mist/spray, industrial smogs) or when a pollution layer containing soluble salts is formed on the insulator surface and then wetted, for example by dew or mist. These currents can reach several hundred mA and may lead to flashover of the insulation.
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How do you test leakage on equipment?
by measuring the insulation resistance then by usig the formula for finding leakage current leakage current =voltage applied /resistance measured by megger.
Why can a semiconductor measure temperature?
Semiconductor resistance depends on temperature. So, you can use a shunt resistor to measure semiconductor voltage with a given current and, then, obtain temperature.
What is a discrete semiconductor?
A discrete semiconductor is an individual circuit that performs a single function affecting the flow of electrical current.
Which has higher leakage current-Si or Ge?
Ge
How do you know you have got an earth leakage?
there will be current that isn't carried by the current carrying conductors
What is surface leakage current?
Undesired current flow across the surface of a semiconductor device due to contamination of that surface. This disturbs the operation of the device and causes a variety of failures. Insulators can also have surface leakage current for similar reasons.
The leakage current of a conventional semiconductor diode is caused by?
it's caused by dopping impurity from naeem iqbal zulfiqari
What is leakage current in transformer?
In low voltage and electronics Leakage Current is any current that flows when the ideal current
What is the source of leakage current in a transistor?
The current of the minority charges (collector region) is the source of the leakage current. At higher temperature, this leakage current increases due to increase in thermal energy.
Which current is the leakage current that flows through a photo diode with no input in a light detector?
leakage current itself
What is leakage current of zener diode?
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
What is the leakage current of zener diode?
The leakage current of a (zener) diode is the current that leaks when a diode is connected in reverse biased.
How do you test leakage on equipment?
by measuring the insulation resistance then by usig the formula for finding leakage current leakage current =voltage applied /resistance measured by megger.
What is the formula of getting leakage current?
There are several formulas to find out leakage current, but one is the general electric current equation. This electric current equation is I=Qt.
What is the definition of reverse leakage current?
Reverse leakage currentin asemiconductordevice is thecurrentfrom that semiconductor device when the device isreverse biased.When asemiconductordevice isreverse biasedit should not conduct anycurrentat all, even though, as a temperature effect, it will form electron-hole pairs (seeCarrier generation and recombination) at both sides of the union and therefore a very small current, which is namedReverse leakage current, and this current doubles for each increment of 10°C in temperature. The current is caused by electron hole pairs being swept across the electric field of the depletion region when generated thermally near the edge.
What is forward bias current in semiconductor?
I think its related to junction of two dissimilar semiconductor (or semiconductor and metal) and not only a semiconductor. well when two opposite nature semiconductor (hetero or homo) are joined to form a junctions they allow the flow of current in one direction while blocks it in other direction. The applied bias V which will cause the current flow is called forward bias and the current flowing through the junction forward bias current.
Carrier of electric current in germanium semiconductor?
electrons or holes depending on doping, as in any semiconductor.
