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An iron ring of mean diameter 10 cm is uniformly wound with 2000 turns of wire.
When a current of 0.25 A is passed by the coil a flux density of 0.4 T is set up in the iron. Find
(a) The magnetizing force and
(b) The relative permeability of the iron under these conditions.
What are lens aberrations? Give reasons for them. Illustrate the working of a simple microscope and give a mathematical expression for its magnifying power.
ISOLATED SYSTEM: "When a number of bodies are like that they can exert force upon one another and no external agency exerts a force on them, they are said to form an isolated s
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if A=[30.1, 21.4 degrees] and B= [25, 40 degrees] what is the magnitude of the sum of these two vectors
working principle of vibration and deflection magnetometer?
to demonstrate the electrostatic shielding
terminal velocity
(a) State the postulate of STR and deduce Lorentz Transformation. OR Give basic postulate of special theory of relativity. Derive Lorentz Transformation equations. (b) Pro
Lenz''s Law states that the Nature of induced emf in the coil is such that it opposes the causes of it. It can be explained by a simple understanding of Faraday EM induction exper
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