I am to draw an impedance diagram of a low pass filter comprising resistor & capacitor, and to indicate the phase angle. I am in dispute with teacher on the phase angle. Is the phase angle found by:
TIA
#1 gets the nod. Which did you pick?
"BIGEYE"
** Xc = 1/ wCso Xc/R = 1/ wRC
and R/Xc = wRC
When C is small, Xc is large and in case of a LPF the phase angle ( or phase shift ) approaches zero when C is small.
Only formula 1 give zero phase for small C.
...... Phil
that is just general current in the circuit.
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