a sample copper wire has a resistance of 50 ohms at 10°C . what is the maximum operating temperature if the resistance of the wire is to increase by at most 10 percent? a at 10°C is 0.00409 per °C

Q: Determine the thermal coefficient of resistance of copper at 50°C, then use this value to determine…

A:

Q: a) Explain the principle of operation of an electrical resistance strain guage

A: According to guidelines we need to solve only the first question. we need to explain the principle…

Q: Give a brief introduction about the topic of generation and measurement of direct current…

A: generation and measurement of direct current voltage

Q: Determine the thermal coefficient of resistance of copper at 500C, then use this value to determine…

A:

Q: An intrinsic semiconductor is neither a good conductor nor a good insulator. Select one: True False

A: Choose the correct option    An intrinsic semiconductor is neither a good conductor nor a good…

Q: Subject:electronic engineering Why a semiconductor acts as an insulator at 0°k and why its…

A: Brief description : In the above given question they are asking why semiconductor behaves as an…

Q: PROBLEM 2 Two semiconductor materials A and B shown in the given figure, are made by doping…

A: If a germanium semiconductor is doped with p type impurity then to make it forward bias we give…

Q: 10) A certain batch of copper wire was found to have a conductivity of 98% at 20°C. What is its…

A:

Q: We inject electrons into a p-type semiconductor 5 microns long such that the concentration varies…

A: Diffusion current is the movement of holes and electrons from high-concentration locations to…

Q: half-wave rectifier is used with 117-V rms ac (house mains), the average dc output voltage is about

A: In this question , a half wave rectifier is given with input RMS voltage given....We have to find…

Q: A Si semiconductor at T=300 K is initially doped with donors at a concentration of Ng=5 x 1015 cm3.…

A: Given data:ND=5×1015/cm3J=50A/cm2R=10KΩV=5 VEMAX=100V/cmWe know that:J=IAWhere, I=current through…

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: doped semiconductor, Please choose one: a. there are only holes b. there are as many electrons as…

A: In this we will write about doped semiconductor...

Q: The resistance of the wire is 126.48-N at 1000C and 100-2 at 300C. Determine the temperature…

A: Given data: R100° C=126.48 ΩR30° C=100 ΩΔT1=100° CΔT2=30° C The expression for the temperature…

Q: For a doped semiconductor, what is the law of mass action

A: In this case, the law of mass action for semiconductors is to be discussed for a doped semiconductor…

Q: Explain how you could use an Ohmmeter to identify the cathode of an unmarked diode. Why is it…

A: Ohmmeter is an instrument mainly used for the measurement of resistance .

Q: How do semiconductors conduct electricity? What is a”hole”? How can one engineer the conductivity of…

A: Semiconductors: This is a materials which have a conductivity between conductors and…

Q: 1) EXPLAIN ELECTRON MOTION IN METAL AND INSULATOR WITH SIMPLE FIGURES?

A: Intrinsic semiconductors have very low conductivity at the room temperature. Hence, extra charge…

Q: 1. Determine the average ac resistance for the diode with characteristic curve region between 0.7…

A:

Q: Explain in detail the effect of applying a voltage source on a pure semiconductor and dopped…

A: Intrinsic semiconductors have very low conductivity at the room temperature. Hence, extra charge…

Q: Explain, what is the potential barrier in semiconductors. Note: no need to give an exact…

A: Potential barrier is a voltage developed across the junction of p-n diode.

Q: Determine the thermal coefficient of resistance of copper at 50°C, then use this value to determine…

A: Given:- T1=50oCT2=170oCR1=50 Ωαo=0.004264/CoThen αT1=?and R2=?

Q: Explanation of how doping may boost a semiconductor's conductivity. What is the difference between…

A:

Q: Find the resistivity of intrinsic silicon at 400 K and classify it as an insulator, semiconductor,…

A:

Q: Based from the number 1 precaution of our experiment, what is the main reason why while doing the…

A: Diodes are very sensitive instruments even the slightest change of parameters will affect its…

Q: What is the benefit of resistance(Charging Resistor)(10 MQ) in an experiment A.C. Breakdown Test of…

A: A spark gap has two conducting electrodes separated by a gap usually filled with gas or air. This…

Q: Germanium doped with 104 m* Al atoms is a semi-conductor at room temperature and ch Al atom creates…

A: Germanium is a group-14 element and it is a pure semiconductor. Its conductivity is low at room…

Q: 1- In your own words, describe the classification of materials according to conductivity, with…

A: As per the guidelines, we supposed to answer one question at a time so please ask other questions…

Q: 2.1 On the circuit diagram shown in Figure Q2.1, illustrate how selenium diodes can be connected to…

A:

Q: 10) A certain batch of copper wire was found to have a conductivity of 98% at 20°C. What is its…

A:

Q: (c) Use semiconductor theory to describe the movement of charge carriers in each the three devices…

A: A Zener diode is a silicon-based semiconductor device that permits current to flow both ways. When a…

Q: Suppose we just connected an n type and p type semiconductor together. What happens at the junction?…

A:

Q: What will be the value of thermal voltage for semiconductors? Estimate its value at 400 K.

A: The thermal voltage (VT) is a very important quantity and it is required to calculate the current…

Q: Q2 (iv) A circuit symbol is shown in Figure 2.2, below: R 5 V 2.3 V Figure 2.2 (a) What type of…

A: Given circuit,

Q: If a Zener diode has 15 volts across and 20mA of current flowing through it, what is the Zener power…

A: Given information: The voltage across the Zener diode is Vz=15 V The current flowing through the…

Q: QUESTION 1 In the figure V=47 volts, and R=117 ohms. Determine the current (in unit of mA) in the…

A: Given, The circuit is, And V=47 voltsR=117 Ω

Q: Indicate a total of 8 factors that determine the breakdown  strength in liquid insulators; Explain…

A: The liquids are easily contaminated, and may contain impurities in the form of  solids, other…

Q: Calculate the currents passing through diodes D1 and D4 in the circuit given below (Figure 1)? (All…

A:

Q: Explain why an n-type semiconductor material is electrically neutral and not negatively charged.

A: Semiconductor are the material made of pure Si or Ge or compound . They have conductivity in between…

Q: how is an n-type semiconductor  produce explain it by determining the types of elements required to…

A: 1st take the pure silicon semiconductor then using oxidation a silicon dioxide layer is formed over…

Q: In silicone T=300K, electron thermal equilibrium concentration is no=5x10^4cc. What is the hole…

A: The solution can be achieved as follows.

Q: Q3(a) Explain the energy band diagram for a conductor with a suitable sketch. (b) With a neat sketch…

A:

Q: - If we use 5000 µF, we can get a very low ripple voltage. But this is so bad and this a…

A: Given that Capacitors are used to reduce the ripple voltage

Q: Q2. Explain how doping a pure silicon crystal with donor impurity atoms makes more charge carriers…

A: When a small quantity of impurity in a semiconductor is added than the impurity contributes either…

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.