Question

The frequency response curve(figure) for the filter circuit used for the production of AM wave should be:

• A. followed by (ii)
• B. followed by (i)
• C. followed by (iii)
• D. followed by (iv)

Answer 1

Answer: (A), (B), (C)

The correct options are
A followed by (ii)
B followed by (i)
C followed by (iii)

The band pass filter cuts-off the unwanted frequencies from the signal.

The frequency response of any given circuit is the variation in its behaviour with changes in the input signal frequency as it shows the band of frequencies over which the output (and the gain) remains fairly constant.

Hence the frequency response curve(figure) for the filter circuit used for the production of AM wave should be fig (ii) followed by fig (i), the fig (iii) is also correct.