This page has some useful calculators for radio amateurs.
Ohm's Law Calculator
Power Calculations.
| Voltage | Current | ||||
| Voltage | Resistance | ||||
| Resistance | Current |
| Power | Impedance | ||||
| Power | Impedance |
Inductors and Capacitors Reactance Calculator
| Capacitance | Frequency | ||||||
| Inductance | Frequency |
Inductors and Capacitors Series and Parallel Circuits
Parallel Circuits block at resonance series circuits pass at resonance. This section will calculate the resonant frequency of a circuit when you put in both the capacitor and inductor values. More usefully it can calculate the capacitor needed for a particular frequency when the inductor value is known or the inductor value for that frequency if the capacitance is known.
Parallel Circuits block at resonance series circuits pass at resonance. This section will calculate the resonant frequency of a circuit when you put in both the capacitor and inductor values. More usefully it can calculate the capacitor needed for a particular frequency when the inductor value is known or the inductor value for that frequency if the capacitance is known.
| Inductance | Capacitance | ||||||
| Required Frequency | Known Inductor | ||||||
| Required Frequency | Known Capacitor |