4. Where:
Ix is the current through the branch
ZT is the total impedance of all the parallel branches
Zx is the resistance of the branch under investigation
I is the total current entering the parallel combination.
5.
6.
7.
8.
9. Example:
If f = 1.432 kHz, R1 = 2.2 kΩ and L1 = 150 mH.
What is the total impedance of the parallel resistor
and inductor?
10. Find the inductor's reactance,
and then find the total
impedance of the R and L
components.
11. XL = 2 π f L
XL = 2 x π (1.432 x 10³) x (150 x 10¯³) = 30.4274 Ω