Q160 / 160 · AP EAMCET 2021 (19 Aug Shift 2) · Physics

In an amplitude modulated signal the maximum amplitude is $15 V$ and minimum amplitude is $5 V$ . The amplitude of modulating wave will be

A
$5 V$
Correct answer
B
$10 V$
C
$20 V$
D
$30 V$

Solution

Maximum amplitude $A_{m} + A_{c} = 15 V$

Minimum amplitude $A_{m} - A_{c} = 5 V$

$\Rightarrow 2 A_{m} = 20 V$

Amplitude of modulated wave, $A_{m} = 10 V$

Hence, the correct answer is option: 'B'.

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