Givenit 5 cos400t 120degree A Determine the frequency and

Giveni(t) - 5 cos(400t - 120degree) A Determine the frequency and period. Find the frequency domain impedance.

4.Compare with Vm(cos(wt-phi) where w=2*pi*F

W=400 rad/sec

Frequency F

F=W/(2*pi)=63.66 Hz

Time Period T

T=1/F=0.0157 sec

Formula for Parallel Equivalent Z1 paralle Z2 =Z1*Z2/Z1+Z2

Z=6+(2 parallel(1+1j))+(j1 paralle(4+j2)+j4 ohms

Z=6+0.8+0.4j+0.16+0.88j+j4 ohms

Z=6.96+5.28j ohms

Z=8.74<37.18^o ohms