Discuss how impressed current can prevent the corrision of metals.

Q: 1. How does the Electrostatic Discharge occur in the following situations? Explain with suitable…

A:

Q: Why electrons are more mobile than the holes?

A: Electrons, when excited, move from the valence band to the conduction band. These electrons in the…

Q: Explain Kelvin's double bridge method of measurement of resistances. What makes it so powerful and…

A: According to the question, Explain Kelvin's double bridge method of measurement of resistances. What…

Q: Explain the L di/dt voltage problem in conductors undergoing commutation.

A:

Q: f. If the upper sphere fell down on ground by accident, and its shape became irregular with having…

A: Any charged particle produces an electric field. This electric field is directed from the positive…

Q: Explain how the resistances of common metallic conductors vary with temperature.

A: What is resistances in a material? Obstacle to the flow of electron in a material is called the…

Q: electric arc furnace

A:

Q: Is ohm law applicable to semiconductor, insulator. Give reasons?

A: Ohm's law is a law that is associated with voltage , current and resistance. It states that the…

Q: What is the Correlation between Resistivity and Earth Materials?

A: Resistivity is basically a factor that helps in determining the characteristic property of any…

Q: 5) The characteristics of conductor material are (is): a. High tensile strength. b. High electrical…

A: Conductor materials are used in the power systems for better transmission and distribution  of…

Q: A//Explain the effect of rise temperature in alloys?

A: In the question, we are describe the effect of the temperature on alloys.

Q: What is resistivity of a material

A: In this question we discuss what is resistivity of a material ?

Q: What is the reason of using an inductor in the ballasts instead of an resistor? In which cases can a…

A: We have two benefits of inductor by using instead of ballasts Such as  The reactance of inductor can…

Q: Q.2 How many types of filament in tungsten filament lamp? & What are they?

A: Tungsten filament lamp :  The lamp which have tungsten filament which give light after heating .…

Q: hat are the majority carriers in a “N” type material & will the material be a positive or negative…

A: there are two type of material present based on the charge carriers, n-type and p-type

Q: What the need of testing insulators in the laboratory? Why insulators most likely to fail at lower…

A: Insulators are the substances that don't conduct electricity at all.

Q: Why does Aluminum conduct electricity

A:

Q: Describe how you could investigate how the pd through a filament lamp affects its current.

A: In the case of the filament bulb, the current may not increase at a speedy rate compared to the…

Q: identify or give two (2) specific direct applications of electromagnetism which may be devices…

A: Electromagnetism plays an important role in designing many electrical equipment. A coil is excited…

Q: electricity is generated from a wind turbine.

A: Energy resources are of two types in nature – Non-renewable - These type of resources are limited…

Q: [5] The conductor becomes incandescent due to the thermal effect of the current. O the chemical…

A: The conductor becomes incantation due to given below method.

Q: List four electrical injuries and the cause of each

A: Electrical injuries take place due to various causes.

Q: What does a compatible charge mean? What if the load is not compatible?

A: to explain the compatible charge

Q: In .... . Insulator, when tension is excessively high, two or more ..... are connected in parallel.…

A: In this question , we will write about strain insulator when tension is high...

Q: : Explain clearly various processes which explain electric breakdown in vacuum.

A:

Q: Why solid insulator has strong strength?

A: Solid insulators are very strong due to their Atomic structure. In the outer electrons insulators…

Q: The relation between electric intensity E, voltage applied V and the distance d between the plates…

A: Given: E = Electric Field ; V = Voltage applied ; d = Distance between Plates

Q: how does heat affect the resistance of most metals and their alloys?

A: resistance is a property which opposes the change in the current

Q: Compare Insulators if they

A: Insulator in transmission line- The device used to protect transmission line and prevent the…

Q: for given conductor is AC resistance is 25 Ohm the the DC resistance is =________Ohm?

A: RAC=RDC K F K=Wire gage factorF= frequency Generally, Rac is 1.2 to 1.3 times Rdc

Q: Explain the importance of electrical properties to agricultural processing

A: IMPORTANCE OF ELECTRICAL PROPERTIES TO AGRICULTURE PROCESSING: There are two principle electrical…

Q: Why electrons are more mobile than the holes? Please explain

A:

Q: Compare alternative and direct currents by comparing their physical properties. (Explain alternans,…

A: The AC changes its direction periodically whereas DC is unidirectional. The AC is easy to transmit.…

Q: Discuss the different types of solar collectors which are muitable for electricity generation.

A: Solar energy is being widely used nowadays due to energy crisis. Photovoltaic arrays and modules are…

Q: Two real life examples of conduction current

A: There are two types of current in an electrical network, these are:  Conduction current…

Q: Why does dislocation have influence on mechanical properties of a metallic materials but not on…

A: Dislocations have an influence on the mechanical properties of metallic materials but not on glass…

Q: Write one paragraph describing why you think chrome has a shiny surface.

A: Most metals are shiny like chrome when you polish them. However, they usually quickly oxidize when…

Q: Explain clearly various processes which explain electric breakdown in vacuum.

A: Electrical breakdown or dielectric breakdown is a cycle that happens when an electrically protecting…

Q: What is the role of electron transfer in electrostatic charging by rubbing?

A: When two objects are rubbed, electron transfer occurs between them.  This phenomena is called…

Q: State the function of insulator

A: A power station is to provide electricity to a huge number of people. Different customer’s power…

Q: What are the methods of measuring high voltage AC and explain common method used for measuring extra…

A: Traditional technologies such as series impedance voltmeters, potential dividers, potential…

Q: how is resistance related to physical parameters

A: Resistance can be described as the property of circuit element which offer the opposition to the…

Q: What is meant by the concept of apparent resistivity (apparent resistivity) in the DC resistivity…

A: Resistors, inductors and capacitors form an integral part of any electrical circuit. A source,…

Q: what is the mathematical relationship between Current and Resistance?

A: Current: The time rate of change of electric Charge in the circuit is referred as current.…

Q: What is galvanometer? Explain working principle.

A: Galvanometer is electrical instrument which is used to measure the presence of electric current in…