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Define Causal System - Discrete Time Systems?
A causal system is one which produces an output only when there is an input. All physical systems are causal. In general, a causal discrete-time sequence, x[n], or the impulse response, h[k], of a discrete-time system is zero before time 0, that is x[n] = 0, n < 0, or h[k] = 0, k < 0. The input-output relationship of a Linear Time Invariant (LTI) system is given by the convolution sum
Where h[k] is the impulse response of the system. The values of h[k] completely define the discrete-time signal in the time domain.
Low-pass electronic filter: The capacitors and inductors are the reactive elements of the filter. The number of elements ascertains the order of the filter. In this situation,
Diode Schematic Symbol The diode in figure is a unidirectional device. Electron current just only flows in one direction, against the arrow, corresponding to forward bias. The
Q. A particular BJT has a nominal value of α 0.99. Calculate the nominal β.If α can easily change ±1%, compute the percentage changes that can occur in β.
What is memory mapping? The assignment of memory addresses to several registers in a memory chip is known as memory mapping.
Q. Consider two 1-C charges separated by 1min free space. Show that the force exerted on each is about one million tons.
A three-phase, six-pole, wye-connected synchronous generator is rated at 550 V and has a synchronous reactance Xs = 2 . When the generator supplies 50 kVA at rated voltage and a p
Q.9 What are the main differences between VGA and CGA graphics adapters? Ans: Colour Graphics Adapter (CGA), initially also known as Colour/Graphics Adapter or IBM Colo
The synchronous speed of a wound-rotor induction motor is 900 r/min. Under a blocked-rotor condition, the input power to the motor is 45 kW at 193.6 A. The stator resistance per ph
Q. Describe small signal FET.What are its characteristics? Small signal FET is the FETs used for amplification. The linear characteristic of FET is used for this purpose The in
kindly tell me which text book is usefull forlearn the basic electricle.
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