An oscillator is producing FM waves of frequency 2kHz with avariation of 10kHz. The modulating index=?
0.2
5
0.67
1.5
A
0.67
B
1.5
C
0.2
D
5
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Solution
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Modulation Index , mf=Maximum frequency deviationModulating frequency
⇒mf=10kHz2kHz
⇒mf=5
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