An amplitude modulated wave is represented by C m (t) = 10(1 + 0.2 cos 12560t) sin(111 \times 10 4 t) volts. The modulating frequency in kHz will be ................. .

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An amplitude modulated wave is represented by
C_m(t) = 10(1 + 0.2 cos 12560t) sin(111 \(\times\) 10⁴t) volts. The modulating frequency in kHz will be ................. .

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