This is a combination circuit driven by a single ac source. The impedances can be resistive and/or reactive.
Step 1--Determine the total impedance of the circuit. This is a parallel circuit:
ZT = Z1 + Z2 || Z3
Step 2--Use Ohm's Law to determine the total current:
IT = VT / ZT
Step 3--Find the current and voltage for Z1:
- IZ1 = IT
- VZ1 = ITZ1
Step 4--Determine the current and voltage for Z2
- VZ2 = VT – VZ1
- IZ2 = VZ2 / Z2
Step 5--Apply the same procedure as Step 4 to find the current and voltage for Z3.
- VZ3 = VZ2
- IZ3 = VZ3 / Z3
Check the results:
VZ1 + VZ2 = VT