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Define Gain and Phase Responses?
Expressing H(ej?) in polar form as:
H (ej?) = G (?) e jφ(?)
G(?) is the "gain" of the discrete-time system and φ(?) is the "phase". Both these quantities vary with ?.
It may be shown that if the input to the system is a sinusoidal sequence {A cos (?n)}, the output will be: {G(?)A cos(?n + φ(?))}
Q. Consider the electromagnetic plunger shown in Figure. The λ-i relationship for the normal working range is experimentally found to be λ = Ki 2/3 /(x+t), where K is a constant. D
Q. Describe about Reduction Clause? Reduction clause specifies an operator as well as one or more list items. For every list item a private copy is created on every thread and
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Explain Overhead Lines and Transformers? Overhead lines absorb reactive power when fully loaded. A line with a current I A, a line reactance of X L ?/phase absorbs I 2 X L V
recent trends in power system
Series circuit Total resistance, R T = R1 + R2 + R3 The current I is the same in all parts of the circuit , I = I 1 = I 2 = I 3 The voltage drop at each resistor, V1,
Refer to Figure 100. Assume MKS units. Given: R1= 4, R2=14, R3= 9, I4= 8, I5= 7. Determine: Ieq, Req, and V3.
if load is removed so which motor will run fast? series or shunt?
explain speed control of dc motor
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