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What is a barrier across a highway called?
It is called a roadblock.
What is The natural voltage across a semiconductor is called?
The natural voltage across a semiconductor is referred to as the "built-in potential" or "built-in voltage." This voltage is created due to the difference in concentration of charge carriers (electrons and holes) in the p-type and n-type regions of the semiconductor, leading to the formation of a depletion region at the junction. The built-in potential is essential for the operation of semiconductor devices like diodes and transistors, as it influences their electrical characteristics.
How do a schottky diode and ordinary pn junction differ in their operation?
The schottky diode is based on a metal-semiconductor junction, called a schottky barrier, that results in lower forward voltage and vastly decreased switching time. While an ordinary silicon diode has a forward voltage around 0.7 volts, with a germanium diode around 0.3 volts, the schottky can be as low as 0.15 volts. The switching time can be in the tens of picoseconds range, compared to hundreds of nanoseconds. The downside is limited reverse voltage rating and poor reverse voltage leakage, which increases with temperature, causing potential thermal runaway.
What is the depletion layer in a semi conductor?
in correct sense it is not the layer but the region around the metallurgical junction which is depleted of charge carriers .in this region an internal electric field exist which counter balance the diffusion of electron and hole around the junction . basically the main reason for the formation of depletion region is the concentration gradient across metallurgical junction of p-n semiconductor.
Cut in voltage?
The forward voltage at which the current through the junction starts increasing rapidly, is called the knee voltage or cut-in voltage.
What is meant by 0.3 volts for germanium and 0.7 volts for silicon?
== When we make a semiconductor junction (a p-n junction), the electric fields force charges to shift creating what is called a depletion region. This depletion region forms a potential barrier across the junction. This potential barrier has a voltage associated with it, and that voltage is 0.3 volts (approximately) for germanium semiconductor material, and 0.7 volts (approximately) for silicon semiconductor. The terms we apply to this barrier potential are the built-in voltage (or potential), junction voltage (or potential), and contact potential. Use the link below to check facts and review some other closely related material.
What is a barrier across a highway called?
It is called a roadblock.
What is depletion region in PN junction?
when the p type semi conductor is connected to n type the electrons in n type migrates towards p type to fill the vacancy i.e holes in p type. As a result accepter ions are developed in n type and donor ions in p type which restrict further movement of electrons and holes . this layer of donor and accepter ions at the pn-junction is called depletion region. and across this region a potential is developed which is called barrier potential.
What is thermal voltage?
In semiconductors, the relationship between the flow of electrical current and electrostatic potential across a p-n junction depends on a characteristic voltage called the thermal voltage, denoted VT.
The chemical that transmits the signal across the neuromuscular junction is called?
Acetylcholine is the chemical that transmits signals across the neuromuscular junction. It binds to receptors on the muscle cell membrane, leading to muscle contraction.
What is junction potential?
When two dissimilar metals come into contact as in the case of copper and ferrous due to diffusion electrons get migrated right from one to the other and so a potential of the order of few volts is created. This is called junction potential. This plays an important role in giving thermo emf for a thermo couple
What is cell to cell junction called?
Gap junction
When an external battery is placed across a p-n junction what does this process called?
Making a circuit? Sorry, but its not entirely clear from your question what you are asking about. Also depending on battery voltage and polarity, the junction may or may not be destroyed.
What is the junction called between 2 communicating neurons?
The junction between two communicating neurons is called a synapse. At the synapse, electrical signals called action potentials are converted into chemical signals in the form of neurotransmitters, which then travel across the synaptic cleft to relay the signal to the next neuron.
The junction between a motor neurons axon and the muscle cell membrane is called a neuromuscular junction or a?
The junction between a motor neruon's axon and the muscle cell membrane is called a neuromuscular junction or a myoneuraljunction?
What is the space junction between two neurons called?
The space junction between two neurons is called a synapse. It is a small gap where the electrical signal in the form of an action potential is converted into a chemical signal in the form of neurotransmitters to allow communication between neurons.
What is the border across which genes can flow between two populations called?
The border across which genes can flow between two populations is called a "gene flow barrier." This barrier can be physical, such as a mountain range or river, or it can be due to behavioral or ecological factors that limit gene exchange between populations.
