Question 9

Identify the mathematical expression for amplitude modulated wave:

• (a)Ac sin [{ωc + k1vm (t)}t + φ ].
• (b)Ac sin {ωct + φ + k2 vm (t)}.
• (c){Ac + k2 vm (t)} sin (ωct + φ ).
• (d)Ac vm (t) sin (ωct + φ ).