Question

A sine wave is passed through an amplifier which severely limits it symmetrically. If then passes to a second amplifier which is narrow band and tuned to the frequency of the original sine wave. What will be the output wave from this second amplifier?

a.

A square wave of the same frequency as that of the original sine wave

b.

A square wave of double the frequency of that of original sine wave

c.

A sine wave of constant amplitude at the frequency of the original sine wave

d.

A sine wave of constant amplitude at double frequency of the original sine wave

Answer: (c).A sine wave of constant amplitude at the frequency of the original sine wave

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Q. A sine wave is passed through an amplifier which severely limits it symmetrically. If then passes to a second amplifier which is narrow band and tuned to the frequency of the...

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