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Electronics and Communication Electronic Devices And Circuits Difficulty: Medium

The circuit shown in figure is Blue colour of sky look due to The potential (scalar) distribution is given as V = 10y 4 + 20x 3 . If ε 0 is the permittivity of free space, what is the charge density ρ at the point (2, 0)? Consider a sample signal \[y\left( t \right) = 5 \times {10^{ - 6}}x\left( t \right)\sum\nolimits_{ - \infty }^{ + \infty } {\delta \left( {t - n{T_s}} \right)} \] where x(t) = 10cos(8π × 10 3 )t and T s =100 μsec. When y(t) is passed through an ideal lowpass filter with a cutoff frequency of 5 kHz, the output of the filter is When it is desired that short-range targets be clearly seen on a pulsed-radar set, it is important that the receiver and display system have