FM 11-02 Chapter 11 · Electronics
Ohm's law and dividers
V, I, R and P from any two, voltage dividers with E24 picks, LED series resistors, series and parallel.
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Fill any two · 12V · 20mA · 4k7 · 0.25W
- Voltage
- 12 V
- Current
- 500 mA
- Resistance
- 24 Ω
- Power
- 6 W
V = I × R and P = V × I, so P = I² × R = V² / R. Values are DC or RMS.