# Solved Problems-18

Problems-18
Find the Fourier transform of the sine pulse shown in the adjacent figure and sketch the amplitude and phase spectra.

This voltage is applied to a series RL circuit with R = 1 ohm and L = 1.0H. Determine the amplitude and phase spectra for the resulting current, i(t).

Solution

âˆ´

âˆ´

The amplitude and phase spectra are shown.

The current in the RL series circuit,

âˆ´

and