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Why potential across pn junction is called potential barrier?
The potential across a pn junction is called potential barrier because majority charge carriers have to overcome this potential before crossing the junction.
What are some potential hazards for children who experience inconsistent and unpredictable child care?
wet floors
Why would it be important to do a background check on a potential day care provider?
Doing a background check on a potential day care provider is important to make sure the child is being taken care of by a competent caregiver with no felony convictions. It can also give a parent peace of mind to know the child is safe.
What is the typical value of the barrier potential for a germanium diode?
The typical value of the barrier potential for a germanium diode is around 0.3 to 0.4 volts. This barrier potential is the voltage required to overcome the potential barrier at the junction of the diode and allow current flow in the forward direction.
Which is greater the breakdown voltage or the barrier potential?
Breakdown voltage is far greater than barrier potential. silicon:- break-down voltage :- 5v - 450 v barrier potential ;- 0.5v to 0.7 V
Potential hazard for children who experience inconsistent child care?
rape, sodomy, molest, fondle, diddling
Why can't the potential barrier of a diode be used as a voltage source?
The potential barrier of a diode is caused by the movement of electrons to create holes. The electrons and holes create a potential barrier, but as this voltage will not supply current, it cannot be used as a voltage source.
Is barrier potential temperature dependent?
Yes, the barrier potential in a semiconductor diode is temperature dependent. As temperature increases, the barrier potential decreases due to changes in the band gap energy and carrier density, leading to increased leakage current. Conversely, as temperature decreases, the barrier potential increases, reducing the leakage current.
What is non barrier crimes?
A "barrier crime" is one that makes one ineligible for employment in areas such as child care, elder care, domestic aid and shelter and others. In Virginia (and it may be different in other states), Code § 63.2-1719 defines a barrier crime as: "Offense" means a barrier crime and, in the case of child welfare agencies and foster and adoptive homes approved by child-placing agencies, (i) a conviction of any other felony not included in the definition of barrier crime unless five years have elapsed since conviction and (ii) a founded complaint of child abuse or neglect within or outside the Commonwealth. In the case of child welfare agencies and foster and adoptive homes approved by child-placing agencies, convictions shall include prior adult convictions and juvenile convictions or adjudications of delinquency based on a crime that would be a felony if committed by an adult within or outside the Commonwealth. In short, barrier crimes are those that prevent employment in certain care-giving occupations. See the references to the above in the Related Link below, Section 1719.
Compare the characteristics of a silicon and germanium diode?
Potential barrier of silicon is 0.7, whereas potential barrier of germanium is 0.3
What happen to barrier potential when temperature increases?
barrier potential P0=(kT/q)*ln(Na*Nd/Ni^2) when T ↑, P0↑.
What happens to the barrier potential when the temperature increases?
When the temperature increases, the barrier potential in a semiconductor diode decreases. This is due to the increase in carrier density at higher temperatures, which results in more charge carriers being available to pass through the barrier. Ultimately, this leads to a lower resistance across the diode and a decrease in the potential barrier.
