Consider a 1000-W iron whose base plate is made of 0.5-cm-thick aluminum alloy (p= 2770 kg/m3 and cp = 875 J/kg · °C). The base plate has a surface area of 0.03 m2. Initially, the iron is in thermal equilibrium with the ambient air at 22°C. Assuming 85 percent of the heat generated in the resistance wires is transferred to the plate; determine the minimum time needed for the plate temperature to reach 140°C.

Q: Assuming silicon with completely ionized dopants, compute n and p for the following case.

A: Given Data:Required Data: Here, we need to determine the electron and hole concentration. Here,…

Q: A 0.3 cm thick pane covers a window of 5 103 cm2. The amount of heat that flows through it every…

A: Given: Thickness, L=0.3 cm=0.003 m Area, A=5×103 cm2=0.5 m2 For every hour, t=1 h=3600 s Temperature…

Q: Calculate the intrinsic carrier density n, for Silicon at I = 292 K. Show all your work and write…

A:

Q: 7. The cross section of No.6 AWG copper wire is 13.30 sq. mm, and the resistivity of copper at 20…

A:

Q: A voltage of 8 V is applied over a silicon specimen that is 78 mm in length. The electron mobility…

A:

Q: Clipper circuit: Vi (p-p)= 10 volt (Sinewave) F=1 kHz R= 10 Kohm V= 4 volt Find and Sketch the…

A:

Q: A nickel chromium alloy conductor of resitance 24 ohms is 110 inches long and has a resistivity of…

A: Given Resistance of conductor R =24 Ω Length of conductor =l= 110 inch resistivity =ρ =640 Ω -CMft…

Q: 1 300° k, if the conductivity is onductivity of 0.1l per ohm per D0 cm2/v-s, and for Silicon

A:

Q: An element has electrical conductivity (o)= 6.8 5 -1 -1 ×10 Ohm .cm and number of charge 3 carriers…

A: It is given that: σ=6.8×105 ohm-1.cm-1ne=5.58×1023 electroncm3

Q: When does maximum frequency deviation occur in an FM signal? -It occurs during the transition of…

A: The explanation is as follows.

Q: Four unknown point charges are heid at the corners of a swuare.Suppose q, is at equilibrium and q -…

A: First we will find out net force on charge particle q4 then we will equivate it to zero to calculate…

Q: The thermal conductivity of a material is defined by the combined contribution of hese two…

A: We will refer the concept of thermal conductivity mechanism.

Q: (b) Consider the diagram of a conducting wire of Figure Q1(b)(i). i. Determine the charge of 7.573 x…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: Calculate the electrical conductivity of pure platinum at -200oC. data: resistivity of Pt a Tamb =…

A:

Q: A metallic conductor, …… .. Please choose one: a. there are four electrons in its outer shell. b. it…

A: Metallic conductors have loosely bound electrons. But overall the conductor is neutral.

Q: A 12 gauge copper wire has a nominal diameter of 2.05mm and carries a current of 0.5 A to power a 60…

A: Given Data: d = 2.05*10-3 m I = 0.5 A n = 8.5x1028

Q: -3 -3 9. Silicon at T = 450 K is doped with 1.5 10¹5 cm³ boron and 8 10¹4 cm*³ arsenic. a. Is this…

A: It is given that: T=450 KDonor(arsenic) concentration=ND=8×1014 cm-3Acceptor(boron)…

Q: 3. The length of a Germanium material is 10 cm and its area is 5 cm2. Check in slide 30 the…

A: Resistance:  In the resistance, the power dissipation occurs in the form of heat. Its unit is Ohm.

Q: Given Four point charges, of 1.00 nC each, located at P1(0.00, -2.00, 0.00)m, P2(0.00, 2.00, 0.00)m,…

A: Given Data:Four point charges of,Locations of, m m m mTo Find:The total force acting on the charge…

Q: The free charge density in copper is 1.7 x 1010 C/m³. For a current density of 8 x 106 A/m?, find…

A:

Q: 1. A Germanium sample is 5 mm long and has a rectangular cross-section, 50 μm by 150 μm. A…

A: Doping of semiconductors Pentavalent impurities Impurity atoms with 5 valence electrons produce…

Q: * The 0.6 m rod of a metal elongates 0.67 mm on heating from 35 to 90 C. Determine the value of the…

A: We need to find out the coefficient for length

Q: Question 4 Assume that an n-type semiconductor is uniformly illuminated, producing a uniform excess…

A: We need to find out the change in conductivity for given semiconductor .

Q: 1.00 MQ A conducting sphere is charged by an emf source & through a 1.00 MO resistor. When the…

A: In the given question The total work done by charge to sphere to 2uC Maximum current 1mA. Resistance…

Q: A wire has a circular cross-section of radius r= 3.53 mm. The conductivity of the wire is 1x10^5…

A:

Q: Q3) (i) Calculate the electrical conductivity of a piece of pure Si if it is given the number of…

A: Answer : 3 (i) : Given that  ni=1×1010 cm3μe=1350 cm2.V-1.s-1μh=450 cm2.V-1.s-1T=300 K Although,…

Q: If we stretch a copper rod, making it 0.1% longer, how much will its resistance change? What…

A:

Q: Find the resistance of a 100 ft length of copper wire with a cross-sectional area of 810.1 CM. The…

A: The resistance of a wire is the ratio of the product of resistivity and length of the conductor to…

Q: Neglecting losses and fringing effects and assuming the substrate of a stripline to have a thickness…

A: In this question we will find required width of metal strip in order for stripline to have given…

Q: Q1. We have an aluminum alloy containing 2 at% Mg. The electrical resistivity of this material is…

A:

Q: Assume that the conductivity of a pure semiconductor at an applied electric field of 450 mV/m is…

A: The data given in the question are: E=450mV/m, σ=2.75×1013/Ω-cm, vd(e)=0.135m/s, vd(holes)=0.048m/s…

Q: A So m aluminum wire has a ooss sectional area diameter oF 8. the conductivi vy or the wire- mm. It…

A: The solution is given below

Q: 6 volts are applied along a 2-cm-long semiconductor bar. The average drag speed is 104 cm/sec. What…

A: Drift velocity is given as                               ϑd=µE where µ is the mobility of an…

Q: Find the concentration of electrons & holes in (a) N-type Si at 300K, if the conductivity is…

A:

Q: An n-type piece of silicon experiences an electric field equal to 0.2 V/um. Calculate the velocity…

A: Given, A n-type piece of Si experiences An electric field E=0.2 V/μm Mobility, μn=1350 cm2/Vsμp=480…

Q: 15. Which of the following is TRUE?  a.   A conductor has a large amount of energy gap between…

A: Given a. A conductor has a large amount of energy gap between conduction band and valance band  b.…

Q: (1-5) The mobilites of free electrons and holes in pure Germanium are 0.33 and 0.18m/v-s…

A: As per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: (1-1)The length of Copper wire is 10m and its cross-sectional area is 0.5mm² has a Calculate: a) The…

A: given lenth of copper wire is 10 m and its cross sectional area is 0.5 mm2 has resistance of 0.34…

Q: Please answer in typing format

A: Detailed qualitative sketch and explanation of the potential energy of electrons in a metal-Detailed…

Q: Find the concentration of electrons & holes in (a) N-type Si at 300K, if the conductivity is…

A: In a doped semiconductor bar, the electron and hole concentrations are not equal. The concentration…

Q: P1.16. A metallic strip has a resistance of 135.85 at 15°C. If its resistance at 0°C is 1309,…

A: 1.16) We are authorized to answer one question at a time, since you have not mentioned which…

Q: (a) Perform binary addition of the following numbers: 100010011.00011+ 101000000.10111 ( mark) (b)…

A:

Q: (2). Current is defined as the rate of charge flow. If a charge of 0.00651 colombs passes a given…

A:

Q: .382 cm. and a m aluminum wire of unknown length has a diameter of -esistance of .295 ohm. By…

A:

Types of Charge Carriers

A carrier is a type of object which carries a particular thing from one point to another point. For instance, people use different vehicles from one place to another, and the vehicle carries those people and acts as a carrier.