Answer:
A = 0.05 V
Explanation:
Sinusoidal Functions
A sinusoid or sinusoidal function is a sine or cosine which general equation is
[tex]F(x)=A.sin(wt-\phi)[/tex]
Or also
[tex]F(x)=A.cos(wt-\phi)[/tex]
Where A is the amplitude or maximum value, w is the angular frequency, t is the time and [tex]\phi[/tex] is the phase shift.
Comparing the given expression with the general formula
[tex]v(t)=50cos(2000t-45^o) mV[/tex]
We can establish that A=50 mV = 0.05 V
[tex]A = 0.05\ V[/tex]
