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1. |
A signal A.cos ωt is transmitted using v0 sinω0 tas carrier wave. The correct amplitude modulated (AM) signal is: |
A. | \({v_0}{\rm{\;sin}}{\omega _0}t + \frac{{\rm{A}}}{2}{\rm{sin}}\left( {{\omega _0} - \omega } \right)t + \frac{{\rm{A}}}{2}\left( {{\omega _0} + \omega } \right)t\) |
B. | v0 sin [ω0 (1 + 0.01A sin ωt)t] |
C. | v0 sin ω0 t + A cos ωt |
D. | (v0 + A) cos ωt sinω0 t |
Answer» B. v0 sin [ω0 (1 + 0.01A sin ωt)t] | |