The base of an electric iron is brightly polished mainly so that ........ ?

Q: The net energy requirement in a place was approximately 2.82 x 106 GWh. What is the equivalent of…

A: Given    The net energy requirement in a place was approximately 2.82 x 106 GWh. What is the…

Q: Which region in a transistor is highly doped. Why?

A: SOltuion: Given that which region in the transistor are doped highly and why?

Q: 6.31 A spherical shell has inner and outer radii a and b, respectively. Assume that the shell has a…

A: Given data,Inner radius=aouter radius=bConductivity=σ

Q: What type of material it would be if it contains Al, Ga, and As. The mole fraction of each element…

A: A material is doped with AI, Ga and As in mole fraction of 0.25, 0.26 and 0.49.

Q: When a piece of pure silicon is doped with aluminium, then:  A) the conductivity of the doped…

A: Silicon is a pure semiconductor element. It is called intrinsic semiconductor. When a small amount…

Q: Compare how charge carriers move in a conductive material and explain how this relates to the Hall…

A: Hall Effect:             This effect was discovered by Edwin H. Hall in 1879.“When a current is…

Q: You are working in a factory that produces long bars of copper with a square cross section. In one…

A:

Q: Silicon is considered a.A conductor b.A semiconductor c.An insulator d.A plasma

A:

Q: 1.34 Given that a certain slab of silicon material exhib- its the charge-density distribution of…

A: We have to label the Electric Field E(x) as well as the Electric Potential

Q: Can Silver (E°red = +0.800 V) be used as a sacrificial anode for iron surfaces (E°red = –0.440 V)?

A:

Q: 75.0 g of water and 75.0 g of copper absorbs the same about of energy, which (if any) will show a…

A:

Q: Metals are bonded by metallic bond, that is protons in a sea of electrons which give them their…

A: given data :

Q: Given that A=ax + ay + az and B = aax+ay + az if A and B are normal to each other, a is

A: The dot product of two vectors A→ and B→ is:A→.B→=A→B→cosθ………(1)where,θ is the angle between these…

Q: A 110 V – 50 W solder is used for 5 minutes. How much energy does it require in Joules?

A: Given Data : The voltage is given as V = 110 V. The power is given as P = 50 W. The time is given as…

Q: how do you know if the material is a conductor/insulator?

A: The material that allow for the charge transfer through the movement of the free electrons is known…

Q: Why do electrons in insulators not contribute to its conductivity?

A: Insulators are materials having zero number of free electrons. Thus there are o free electrons to…

Q: The circuit shown below contains two ideal diodes, each with a forward resistance of 50 Q. If the…

A:

Q: The angle between [111] and [11-2] directions in a cubic crystal is (in degrees) а. 45 b. 90 OC. d.…

A: The angle between two planes of cubic crystal having miller indices (h1,k1,l1) and (h2,k2,l2) is θ…

Q: poorest insulator materials are?

A: Insulator: The materials which are poor electrical conductors are called insulators.

Q: What is the magnitude of the electrostatic force between a singly charged sodium ion (Na+, of charge…

A:

Q: Show graphically how electric resistance of a piece of Silicon or Germanium varies when its…

A: We have to know about basic here.

Q: mits an alp

A: solution of above prom is below:

Q: Insulators also contain electrons, but they are not conductors, Why?

A: Insulators consist of atoms having tightly bound electrons. Whereas, conductors have free electrons.

Q: Materials in which electric charges (electrons) can move very easily are ____________. a.…

A:

Q: What factors determine whether a material is a conductor of electricity or an insulator? Explain.

A: DETERMINING FACTORS TO KNOW THE NATURE OF MATERIAL  : 1. CONDUCTIVITY : If material conduct…

Q: The electric conductivity of a metal will decrease if its temperature increase because A) the speed…

A: Conductivity is caused by the flow of free electrons in metals. The vibration of metal ions…

Q: An electron is moving in a piece of very lightly doped silicon unde r an applied field such that its…

A:

Q: af copper wlie (xae.0068) is connecteed to batt ery at 2ol aned contaet cuttent ef aýSA.at pew…

A: The relation between the resistance and the temperature is given by, Here, R, Ro, T, To and α…

Q: The potential barrier in a semiconductor is because of O a triple charge layer o a double charge…

A: The required potential difference to electron to flow through electric field is known as potential…

Q: Why should elements and compounds with positive paramagnetic susceptibilities not be good candidates…

A: Paramagnetic materials: These materials are categorised as those which are weekly attracted to the…

Q: The junction is in thermal equilibrium when the

A: When the temperature of two objects is the same.

Q: and P=(52=39) them If Ealculate xF.

A:

Q: What is energy gap in insulators?

A: The energy gap or band gap is the difference between the highest energy level of the valence band…

Q: It is true that one can force a polished flat end of a p type silicon to a flat end of an n type…

A: When a p-type silicon is suitably joined with n-type silicon then a junction formed between them is…

Q: why do we dope at semi conductors

A:

Q: A silicon diode is operated in an environment whose temperature is ten times its ambient…

A:

Q: The conversion between electron-volts and joules is 1 eV=1.60x10^-19 J . The work function for…

A: Given data: 1 eV=1.60x10^-19 J Work function = 7.43 x 10^-19 J Need to determine the work function…

Q: At what pressure, in atmospheres, would the number of molecules per unit volume in an ideal gas be…

A:

Q: Why do you need a rectifier?

A: A rectifier is an electrical component which converts alternating current to direct current.…

Q: Calculate the linear density (in units of atoms/nm) along the [101][101] direction in copper.

A:

Q: My physics class has turned to online due to the COVID-19 and I am having trouble with some of the…

A: Given: Mass of gold (m) = 500 g. Specific heat of gold (c) = 0.129 J/g ̊C Latent heat of melting…

Q: When two identical resistors(say 4 ohm each)Are connected in parallel to a 12 V car…

A: Resistance are connected in parallel, so, Total resistance, R=4×44+4=2 Ω (a) Since resisters are…

Q: ver input of a forc j +9k N, v 8i m/ 5j N, v = 5i + 4j m i -3k N v = 6i + 3

A: given;