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Mica is an inorganic mineral. It is one of the best natural insulating materials available. In spite of the tremendous progress made in insulation technology this material and its product still find many applications in the present day. The qualities of mica can be classified on visual basic such as clear, stained spotted, etc. Mica sheets are used for the insulating leaves between commentator segments. These are however not obtainable in large thickness. Thus for commentator of considerable dimensions mica has been developed. This is achieved by sticking mica splitting on sheets of paper by means of a drying varnish such as shellac. These sheets are pressed between steam heated plates and then cooled. Mica is used for slot linings of have machines and for making bushes. Mica is usually avoided for slot linings of machines because its space factor is low. This means that adequate dielectric strength may be obtained with thinner layers of cotton tape and like materials than of mica.
Reverse Bias: When P-types material of a semi conductor diode is linked a negative potential and the n-type material is linked at positive potential of a voltage source, the di
A 10 kilogram body initially moving with a velocity of 10 meters per second makes a head-on collision with a 15 kilogram body initially at rest. The two objects stick together. W
Briefly explain with necessary theory how you will calculate refractive index of water/transparent liquid by using Newton's ring apparatus?
Forces: If a Force is applied to a body, it will cause that body to move. A body that is already moving will change its speed or direction. Note that the term 'change its spe
The temperature of a body is measured indirectly by making use of the fact that certain physical property of a substance changes linearly with the temperature If the value of th
why one side of glass has been coated with silver..?
the magnetic field at a dictance of 2cm from the axis of a straight conductor carrying current is 12mT.Find the currentin the conductor?
What is the name of the first American physicist to win two Nobel prizes? Ans: (John) bardeen was the first American physicist who win two Nobel prizes.
Shell type transformers . In this type of transformer the iron core surrounds the copper windings. The core is in the shape of numeral 8. The entire flux passes by the central pa
A negatively charged particle is cranium due north straight toward a straight vertical wire which carries a downward current. What is the direction of the force if any use on the c
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