Electrical Engineering Answers

Design a FIR Hilbert transformer. Arbitrarily choose the window function and number of samples. Plot the magnitude response.

Design a FIR digital differentiator. Arbitrarily choose the window function and number of samples. Plot the magnitude response.

What are the near field and far field of an antenna? What are their major differences?

Calculate the value of α, β, γ ,η for a rubber at a frequency f=10⁶ Hz. It is given that ε_r = 3.5, σ=10^-16 mhos/m & µ_r=1.

A 4 pole dc series motor has an armature resistance of 0.1 Ω. Its field winding is divided into two groups, each having resistance of 0.01 Ω. When the two groups are in a series and supply voltage as 110 V the current drawn by the motor is 50 A, running at 700 r.p.m. Find the speed if field groups are connected in parallel. Assume load torque constant and flux proportional to the field current.

for a source free rlc series circuit the initial voltage across c is 10v and the initial current through l is zero. if l=20mh, c=0.5 microfarhad and r= 100 ohm. evaluate i(t)

X(t)=e^j(5/3t+π/4)

x(t)=sin√3t+cos√3t

y(t)=x2(-2+4/3t)

Determine whether the following signals are periodic or non periodic. If the signal is periodic find the fundamental period.

X(t)=6 cos5/4t+2 cos9/7t