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Generate and plot a sampled sine wave with fs=8kHz, of 4 seconds duration, with frequency ω0 = Π/10 and amplitude A = 1.2. The waveform equation is
x(n) = A sin nω
Explain the role of each of the variables in this equation. What is the true (Hertz) fre- quency generated in this case?
Generate a Gaussian random signal vector, v(n), of the same length. Then generate a noisy signal of the form
y(n) = x(n) + αv(n)
(2) Listen to the resulting signal y(n) for various values of α. You will have to choose the value of α experimentally - try both small and large, and investigate the differences. Plot one of the waveforms, and comment briefly on your results.
The relative permeability of a paramagnetic substance is (A) Unity. (B) Slightly more than unity. (C) Zero. (D) less than unity. Ans: The relativ
Self inductance: When current through a coil changes, the changing flux induces an emf that opposes the current flow. This emf is the result of self inductance and is called '
introduction about earth''s magnetic field
#question 1:successive disintegration in nucluer physics
What is fusion? It is a nuclear reaction in which two nuclei join to form larger (with nearly combined mass) nuclei. It discharges lot of energy. Sun and stars discharge energy
how do you produce a pure spectrum
Electrical Properties of Dielectric Material A loss of energy which eventually produces a rise in temperature of a dielectric placed in an alternating electric field is calle
In a pulley system the eqn for length of inextensible string is y plus sq. root of x^2+h^2=constant ? how to differentiate y plus sq. root of x^2+h^2=constant to get vel & accn rel
Q. The block of mass M descend with acceleration a and mass of string is m. find tension in string? Ans: The tension in the string will not be same at all points as the string h
a) Orbital movement of electrons b) On the source of orbital motion of electrons c) These are repelled in an external magnetic field i.e. have a tendency to g
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