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What angle we take between magnetic field and plane of loop....discuss the cases when induced emf is zero in a rotating frame.Ans) We know that Magnetic Flux through a given area is given as ?=B.A= BAcosθLet θ=wt, where w is frequency of sourceNow, the Induced emf will be zero if:1. Magnetic field B is zero,2. Area of the conductor is zero.3. Angle between Magnetic field and Area Vector is 90oAlso the angle between the Magnetic field and plane of loop is taken as anticlockwise angle or positive angle
Na + ion is isoelectronic with: (1) Li + (2) Mg +2 (3) Ca +2 (4) Ba +2 Ans:(b) Mg +2
Component Addition of vector We learned in which vectors oriented at right angles to one another could be added together by using the Pythagorean Theorem. For example, two disp
ACSR (Aluminium Conductor Steel Reinforced): Owing to the low tensile strength of aluminium, aluminium conductors produce greater sag which prohibits their use for longer spans
relativity and conservation law
Reflection of a Pulse at a Fixed End Let's assume a pulse moving by a medium - perhaps by a rope or a slinky. What happens to the pulse while it reaches the end of that medium?
Phase advancers: Phase advancers are used to better the power factor of induction motors. The low power factor of an induction motor is because of the fact that its stator winding
Q. Describes the construction of a 'Nicol Prism' and explains its action in converting UPL into PPL. Sol. Nicol Prism: This is the most simple and elegant polarizer and
two blocks with masses 4kg and 8kg cre connected by a mass less string and slide down a 30degree inclined plane. the coefficient of kinetic friction between the 4kg block and the p
A quantum particle confined to one dimensional box of width 'a' is in its first exited state. What is the probability of finding the particle over an interval of (a/2) marked symme
"The pressure of a needed mass of gas at constant volume differs directly as its Kelvin Temperature",
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