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What is an explanation of n-type and p-type semiconductors?
In n-type semiconductor, electricity is conducted by NEGATIVE charges (electrons). In a p-type semiconductor, electricity is conducted by POSITIVE charges (holes).
What does not change direction in electricity?
Direct current (DC) does not change direction in electricity. It flows consistently in one direction from the positive to the negative terminal of a power source, unlike alternating current (AC) which changes direction periodically.
Which direction does electricity flow with a d-cell?
Electricity flows from the negative terminal (-) to the positive terminal (+) in a D-cell battery.
What is the Tempetature coefficient of an extrinsic semiconductor?
negative
What is difference between positive current and negative current which current is used for generation of electricity?
Positive current flows from the positive terminal to the negative terminal, while negative current flows in the opposite direction. In electrical systems, positive current is used for generating electricity as it represents the flow of electrons from negative to positive, which is the direction of conventional current flow.
What is the purpose of the impurities in the semi conductor?
The purpose of impurities in a semiconductor, known as doping, is to modify its electrical properties. By introducing specific impurities, or dopants, such as phosphorus or boron, the semiconductor can be transformed into either an n-type (negative) or p-type (positive) material. This process enhances the material's conductivity, allowing for better control of electrical currents, which is essential for the functioning of electronic devices like transistors and diodes. Doping creates charge carriers (electrons or holes) that facilitate the flow of electricity, enabling the semiconductor to perform various functions in circuits.
What is the name of a semiconductor device having negative resistance?
A tunnel diode.
What is electrons importance?
electricity is important to technology because without it we wouldent be able to see at night or watch tv or use resorceful items such as for math you could use a caculater which does contains electricity because of battereis.
What are the difference between semiconductors and semimetals?
A conductor is just that - something that conducts electric current. A semiconductor, however, is a material that can be and is used because by doing some things to it, we can cause its resistance to vary dramatically over a fairly wide range of values. We can cause it to conduct with little resistance, and we can cause it to resist current flow completely and prevent current from flowing. The material is a semiconductor, and it "sort of" conducts - either well or poorly or something in between, depending on how the device is made and on what we tell it to do. Conductor will pass electrons by the laws of electrical conductivity. Semiconductor will pass electrons basically only one way.Conductors, like copper, are materials that simply conduct electricity from point A, such as the negative terminal of a battery, to point B.Semiconductors are materials that conduct electricity from point A to point B, but have high high resistance. Many conductors can be modified to have unique properties when electricity is applied, such as in transistors. Put simply, semiconductors have an electrical conductivity somewhere between that of conductors (gold, copper) and insulators (wood, rubber).A conductor allows an electric current to flow through it equally well in either direction. The amount of current which flows depends only on the amount of resistance of the conductor and on the amount of voltage applied across it. The direction of flow can always be considered as being from the positive to the negative pole of the source of the voltage applied, so the direction of flow through a conductor is always determined by which end of the conductor is connected to the positive pole of the source. A semiconductor allows an electric current to flow very strongly in one direction (this is known as the forward current) and very weakly in the opposite direction (which is known as the reverse current). The amounts of current which flow in each direction depend partly on the amount of the voltage applied but mainly on the forward resistance (which is relatively low) and the reverse resistance (which is always very high). So, unlike a conductor, the flow of current through a semiconductor is not the same amount of current whichever way the voltage is applied. The direction in which a semiconductor allows the forward current to flow depends on whether it is a p-type semiconductor or an n-type semiconductor. How are semiconductors made? Certain elements, such as Germanium or Silicon, are not naturally semiconductors but can be made into semiconductors by melting them and adding very small amounts of other chemicals. This process is called doping. Whether a p-type semiconductor or an n-type semiconductor is produced depends on the type of doping chemical used.
In what negative direction is the project heading?
The project is heading in a negative direction.
If the net force of an object is negative direction what will be the direction resulting acceleration be?
If the net force of an object is in the negative direction, the resulting acceleration will also be in the negative direction. This means that the object will be accelerating in the opposite direction of the applied force.
What does negative polarity mean with electricity?
Polarity is the direction of flow of electrons throughout a circuit. There are two types of polarity: positive and negative. Postive polarity is of older circuits which means electrons flow from positive to negative. Negative polarity is of more modern circuits and that is the flow of electrons from negative to positive such as on car batteries
