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Define about the Graphite Structure
Graphite is the allotropic form of carbon. In case of graphite the carbon atoms are arranged in regular hexagons in flat parallel layers and every carbon atom covalently bonds with three atoms in a this hexagonal layer. The remaining electron is delocalized among the planes forming a weak bond among the parallel layers. As the bonding between these parallel layers are weak, the layers are simply separable from each other and is the cause for softness and lubricating action of graphite.
Lorentz Transformation: The postulate of STR is proposed by Einstein in 1905. The two postulates are: 1. Principle of equivalence: According to this "The laws of physics
P-N junction is (A) A rectifier. (B) An amplifier. (C) An Oscillator. (D) A Coupler. Ans: P-N junction is a rectifier.
There are several conditions for formation of cat ions ? Low Ionisational potential ? Lesser Charge ? More atomic size of atoms forms cations easily ? Ions having Inert
Assumptions: Kinetic Energy=KE, Potential Energy=PE m=mass of the skateboarder=55 kg, Velocity v=1.80m/s So ,Initial Energy(KE) of the skateboarder=mv 2 /2 = 0.5* 55 * (1.8)^
Describe capacitance or capacity of a conductor and illustrate the principle of capacitor. Derive the mathematical equation for equivalent capacitance (Capacity) When a number o
A metal has a work function of 4.80 eV. Will ultraviolet radiation with a wave length of 385 nm be able to eject a photoelectron from the metal?
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
Specified a set of equipotential surfaces how does one determine the corresponding set of electric field lines? Feedback: An equipotential surface signifies a set of poin
Explain the laws of solid friction
Factors affecting capacitance: The factors which affect the capacitance of a parallel-plate capacitor are: Overlapping area of the plates (A). The capacitance increases
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