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It is the opposition offered by the material of the flux.
Reluctance α mean length of flux path and reluctance α 1/cross section A
Reluctance=1/μ0μrA
Here μ0 and μr are the permeability of free space and relative permeability of material respectively.
A closed magnetic circuit of cast steel have a 6cm long path of cross-sectional area 1 cm 2 and a 2 cm path of cross-sectional area 0.5cm 2 . A coil of 200 turns is wound arou
(a). Modulus of elasticity and modulus of rigidity are important parameters to measure mechanical properties of materials. With the aid of drawings, explain these parameters and gi
An equilateral triangle is inscribed in a circle of radius 2 cm if P lies inside the triangle then the minimum sum of distances of P from the sides of the triangle is? Ans
What are the thomson coefficients for copper and constantan?
Fast neutrons can be changed into slow neutrons by certain materials known as moderator's when last moving neutrons pass by a moderator, they combine with the molecules of the mod
é How many types of breakdown ?
UNIT: SI unit of impulse is NS (Newton x Second) or kgms -1
How Does a Cat Land on its Feet? The saying is in which cats always land on their feet. This animation describes how they do this.
calculate
Coulomb's law (C. de Coulomb) The primary law for electrostatics is analogues to Newton's law of universal gravitation. This states that the force among two point charges is p
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