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applicationinterpolation and extrapolation are widely used by businessmen administrators sociologists economists and financial analysts
assumptionsthe figures known are assumed to be a normal series that is a series without any violent unexplained fluctuations in the
what is the basic requirement for both interpolation and extrapolation to work there must exist a functional relationship between an independent
interpolation is a method of statistical estimation and the word literally means making insertions let us consider a
mathematical formulaea b2 a2 b2 2aba - b2 a2 b2 - 2aba b2 a - b2 2a2 b2a
initial conditions and boundary conditionsin many problems on integration an initial condition y y0 when x 0 or a
the effects of back emf on circuit currentin proving the time constant it was stated that at the instant the switch is closed the current i is
time constant in inductorsit is impossible to decide exactly when the maximum point is reached on an exponential curve or when the curve has fallen
inductors in dc circuitsif it is required to increases the value of inductance in a circuit then two or more inductors may be connected in series
inductorscoils which are used for their opposition to current change in a circuit are known as inductors or chokesconstructioninductors with an air
spark suppressionif we consider a circuit with a large inductance possibly one using a magnetic relay at the instant the switch is opened the
coupling factorif all the flux of a primary coil links with all the turns of a secondary then 100 coupling exists sometimes it is more convenient to
if r per annum is the rate at which the principal a is compounded annually then at the end of k years the money due
we have seen that if y is a function of x then for each given value of x we can determine uniquely the value of y as per the functional
faradays lawwhen the magnetic flux through the coil is made to vary an emf is induced in the coil the magnitude of the induced emf is
factors affecting induced emfby experiment the following factors may be notedbullthe faster the magnet or coil is moved the greater is the deflection
magnetic flux and flux densitya magnetising force produces a certain amount of magnetic flux f measured in webers the magnetic field is
example suppose the demand and cost functions are given by q 21 - 01p and c 200
for the layman a function indicates a relationship among objects a function provides a model to describe a system economists
the magnetic circuitin an electric circuit a current is established due to the existence of an electromotive force in the same way in a magnetic
rule 1the logarithm of 1 to any base is 0proofwe know that any number raised to zero equals 1 that is a0 1 where a takes any value therefore
we know that 24 16 and also that 2 is referred to as the base 4 as the index or power or the exponent the same if expressed in terms of
magnetic materialsferromagnetic materialsferromagnetic materials can be easily magnetised and exhibit strong magnetic properties this group can be
properties of lines of fluxto make the imaginary lines of flux describe the behaviour of the magnetic field we must give them appropriate