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In cosmetology we regard a human body load as a resistive and a small capacitive load connected in parallel.
To calculate the complex impedance Z of a parallel RC circuit for alternating current, enter the values for load resistance, capacitance, and operating frequency:
| Load resistance R | Ohm | |
| Load capacitance C | pF | |
| Frequency f | MHz |
Complex impedance Z in Cartesian form | |||
| -j | Ω | ||
For complex impedance Z in polar form Z=|Z|ejθ: | |||
| |Z|= | θ= | ||
