First slide

Modulation

Question

An amplitude modulated voltage is expressed as $e = 10 (1 + 0.6 c o s 2000 π t) c o s (3 \times 10^{6} π t) v o l t$ . The minimum and maximum value of modulated carrier wave is

Moderate

A

2 V , 18 V
B

4 V , 16 V
C

2 V , 8 V
D

4 V , 12 V

Solution

$G i v e n e q u a t i o n i s e = 10 (1 + 0.6 c o s 2000 π t) c o s (3 \times 10^{6} π t) v o l t W e k n o w t h a t m o d u l a t e d w a v e e q u a t i o n i s C_{m} (t) = E_{c} (1 + μ C o s w_{m} t) C o s w_{c} t C o m p a r i n g w e g e t, E_{c} = 10, μ = 0.6 N o w, E_{\min} = (1 - μ) E_{c} = (1 - 0.6) (10) = (0.4) (10) = 4 V E_{\max} = (1 + μ) E_{c} = (1 + 0.6) (10) = (1.6) (10) = 16 V$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App