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What causes depletion region across P-N junction?
The presence of mobile and bound charges on either sides of the pn junction causes the depletion layer. A pn junction is formed when a semiconductor is dopped with a pentavalent impurity on one side and a tri-valent impurity on the other side.on one side electrons will be more in number and on the other side holes will be more in number.At the junction the electrons combine with holes and there will be no charge carriers(i.e. electrons and holes) in that region.That region which is free from charge carriers is called depletion region.
Why is resistance more in parallel combination?
Resistors in parallel have a LOWER combined resistance than either alone, not a higher one.
How do you find resistance when you have current and resistance total?
If you are looking for the resistance of each resistor in either a series circuit or a parallel circuit you must measure the current I and the voltage V for each resistor. Then calculate its resistance using Ohms Law R = V / I where I = current (Amps), V = voltage (Volts) and R= resistance (Ohms).
If a series circuit has a 12 v battery what is the current flow?
You'd need to know either the resistance or the wattage of the circuit. Ohm's Law: Current = Voltage divided by resistance or Current = Power divided by Voltage
What is the standard unit for resistance?
ohm
How can you increase number of free electron and holes in semi conductor?
To increase the number of free electrons in a semiconductor, you can dope it with donor atoms like phosphorus. This introduces extra free electrons into the material. To increase the number of holes, you can dope the semiconductor with acceptor atoms like boron, creating extra holes for electrons to move into.
Why for making an n-type semiconductor silicon or germanium is doped with only fifteenth group element like phosphorus?
in silicon or germanium, the valence shell contain 4 electrons. in order to attain stability, they need 4 more electrons, so we doping it either with trivalent or pentavalent impurities. if we are doping semiconductor with any of these, we call it as an extrinsic semiconductor if we are using pentavalent impurity such as phosphorous, there will be an extra electron,which will go to conduction band. we know electron has negative charge therefore we call it as n-type semiconductor
What causes depletion region across P-N junction?
The presence of mobile and bound charges on either sides of the pn junction causes the depletion layer. A pn junction is formed when a semiconductor is dopped with a pentavalent impurity on one side and a tri-valent impurity on the other side.on one side electrons will be more in number and on the other side holes will be more in number.At the junction the electrons combine with holes and there will be no charge carriers(i.e. electrons and holes) in that region.That region which is free from charge carriers is called depletion region.
A change in a objects velocity is called?
either resistance or inertia
Is the phrase clean all impurities correct?
Not really. One doesn't clean an impurity, one removes it from something. So either "remove all impurities" or "clean (something) of impurities".
Why is resistance more in parallel combination?
Resistors in parallel have a LOWER combined resistance than either alone, not a higher one.
Does resistance use amps or voltage?
Resistance doesn't "use" either. Resistance is the division of voltage by current. It can be though of as a measure of how hard it is to push electrons through a substance.
Is a switch and example of a resistor?
No it is not. A resistor has a known resistance that is less than infinity. A switch has a resistance of either infinity when it is open or low when it is closed
To connect a pair of resistors so that their equivalent resistance is greater than the resistance of either one should you connect them in series or in parallel?
When many resistances are connected in series, the equivalent resistance is greater than the greatest single resistance. When many resistances are connected in parallel, the equivalent resistance is less than the smallest single resistance.
What is the effect on its resistance if a resistive wire is elongated?
If a resistive wire is elongated, its resistance will increase. This is because the longer length of wire will result in more collisions between electrons and the wire's atoms, leading to higher resistance. The resistance of a wire is directly proportional to its length.
Is the Galaxy S6 edge water proof?
No, it is not waterproof. It does not have a water resistance rating either.
What is the Muslim ritual for cleansing before you read the QU'RAN?
A Muslim should be in a state of ceremonial purity when touching the Holy Quran. If a person has a minor impurity, s/he must perform the minor ablution, called wudu. If the person has a major impurity, s/he must take a ritual shower, called ghusl. If water is not available, a dry ablution, called tayammum, may be substituted for either wudu or ghusl.
