0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is material constant for a semi conductors?
depends on what material you are using for a semi-conductor
Is aluminium conductor or semi conductor?
All metals are conductors.
Why semi conductors are preferrd over conductors?
Conductors transport electrical energy easily. You can transfer the energy at the electrical pole to you light bulb without much loss from friction through a conductor like copper. Some semi-conductors are very interesting because they can be made to vary the flow of electricity through them. A small electrical signal can control the resistance of electricity through the semi-conductor. Thus a small signal can be made into a large signal, this is called amplification.
What is a semi-conductor material?
Semi-conductor is a material in which the energy band gap between the conduction band and valance energy band is very less (around 1V) which is in between conductors and insulators So, with just a an excitation energy of around 1v changes the state of semi-conductor to wither conductor or insulator .
Why semiconductors better than conductors?
Semi-conductor properties can be easily manipulated by doping such as p type and n-type etc can control the electrical properties but not in th case of conductors..
What are conductors insulators and semi conductors and super conductors?
b
Is a cotton shirt insulators or a conductors?
semi conductor
How are materials divided into conductors insulators and semi conductors according to the atomic theory?
by their ability to accept electrons
Conductors Semiconductors and Insulators?
conductors:copperironaluminiuminsulators:woodplasticglassHOPE YOU LIKE IT =) HAVE A GOOD DAY!
What are the many different ways elements on the periodic table are classified?
1.metals, semi-metals, non metals 2.Solid, liquid, gas 3.Conductors Semi-conductors Insulators
What properties do metals non-metals and semi-conductors have in common?
They generally look metallic but are brittle (not malleable or ductile). Neither good conductors or insulators but they are semiconductors.
What are semi conducting substances?
Those which have resistivity in between conductors and insulators are known as semi conductors. Germanium and Silicon are very good examples of semiconducting materials whose resistivity of the order of 10 -2 to 10 4 ohm meter.
Why is silicon a good heat conductor but a poor electrical conductor?
Metals are actually good conductors of both heat and electricity... but silicon is a semi-conductor. Unlike metals, which are good electrical and heat conductors, crystalline solids such as diamond and semiconductors such as silicon are good heat conductors but poor electrical conductors. This is their nature... you can't change it :-)
How do semiconductor differ from conductor and insulators?
SemiConductor = Kind-of-conducts.Really! By applying electricity to the conducting material (usually in a transistor or Integrated chip) the conduction rate of the material changes. This allows you to change the flow of electricity through the semiconductor by using a second smaller control voltage.This is the basis of most electrical components.Conductors(made out of materials that are not semi-conductors) fully allow electricity to flow through it.Insulators (Non-Conductors)completely block the flow of electricity.
Do the resistors is made of semi conductors?
no
Are gold wire and ice and rubber and yarn and paperclips conductors?
We classify materials into three general categories -- conductors, semi-conductors and insulators. In general, a conductor conducts even below room temperature. A semi-conductor is a poor conductor at room temperature and its conductivity increases with rising temperature. An insulator is a very poor conductor even at rising temperature. A gold wire is made of gold, which is a metal. Metals are mostly conductors. Ice, rubber and yarn don't conduct very well. They are insulators. Note that ice disappears at above-freezing temperature. A paper clip without an insulating coating is a conductor. If it is sheathed with a plastic coating, it is more likely an insulator, depending whether one applies electricity at the exposed ends or not -- the exposed ends can form a conductor. A reliable way to tell whether it is safe to apply a voltage to an item is to check out the arrangement with an ohmmeter. Very loosely defined, a mega-ohm or above is a poor conductor; a giga-ohm is in the insulator territory. A good conductor will read a resistance below a kilo-ohm. I have not discussed sheet resistance or resistivity; it is a more advanced topic.
Is ohms law applicable to all the current carrying conductors?
Ohm's law is a linear approximation for the voltage versus current across a conductor. This approximation works very well for good conductors (like metals) as well as poor conductors (like wood), but not very well for semi-conductors (like Silicon).
